Ensure weighing accuracy with certified calibration weights
Calibration weights are precision mass artefacts used to verify, adjust and document scale performance, providing process security and repeatable results in production, quality assurance and laboratories. They come in defined nominal values and accuracy classes such as E1, F1 and M1, so you can match the right weight to the scale’s readability and application to avoid false confidence or unnecessary cost. Correct handling—using gloves or tweezers, storing weights in their case and avoiding contamination—keeps them reliable, while routine checks at multiple points in the weighing range reveal issues caused by vibration or temperature changes.
5 kg Precision Test Weight Button Polished Stainless Steel, OIML Class E1, 2.5 mg Tolerance - KERN
Secure consistent calibration with a 5 kg OIML E1 single weight: 2.5 mg tolerance and polished stainless steel provide a stable, traceable reference mass for laboratory and industrial use. Order the KERN 307-13 directly via Metav Werkzeuge or consult our specialists for application advice. KERN 307-13 — single calibration weight, OIML E1 accuracy, 5 kg, polished stainless steel The KERN 307-13 is a single calibration weight in button form, engineered for laboratory and industrial scale verification where high accuracy and traceability are required. OIML class E1 accuracy, 2.5 mg tolerance 5 kg nominal mass in button form Polished stainless steel for corrosion resistance Traceable SKU 307-13, manufacturer KERN Reliable reference for precision workflows A certified reference mass in OIML E1 provides the tightest legal-class accuracy suitable for calibration laboratories and high-end industrial verification. With a 5 kg nominal value and an OIML tolerance of 2.5 mg, this single weight reduces measurement uncertainty and supports repeatable results during routine checks. The high-precision classification helps streamline calibration procedures and reduces downtime by cutting the number of re-measures needed to confirm instrument performance. Where documented traceability and conformity are part of quality management, this mass standard supports uncomplicated integration into existing calibration chains. Built for regular use and careful handling The mass is manufactured from polished stainless steel, giving good resistance to surface corrosion while presenting a smooth finish that minimises particulate adherence. Its button form concentrates mass centrally for stable placement on pans and helps with handling during frequent transfers. Cylinder dimensions of 80×140 mm are balanced for laboratory balances and industrial scales. For such a high-accuracy artefact a protective case is recommended to prevent contamination and mechanical damage during storage and transport; Metav provides a selection of suitable cases to preserve long-term performance and calibration integrity. Compliance, traceability and system benefits This single weight is supplied by KERN and carries the necessary identifiers for documentation and audits, making it straightforward to include in quality systems and calibration protocols. Using a certified E1 mass assists laboratories in meeting accreditation requirements and supports a transparent calibration history. Supplied through Metav Werkzeuge’s quality-controlled logistics, the item benefits from careful stock handling at the Emmerich site, which acts as a quality filter for European customers and contributes to reliable delivery and documentation. For tailored advice and to secure the KERN 307-13 through Metav Werkzeuge—including guidance on the recommended protective case—contact our team in Emmerich today Technical data Article number: 307 SKU: 307-13 GTIN: 4045761002777 Manufacturer: KERN Country of origin: DE Facts Nominal mass: 5 kg OIML class: E1 Tolerance (OIML): 2,5 mg Cylinder dimensions: 80×140 mm Tariff/HS code: 84239090 Special features Polished stainless steel Button form Single calibration weight Recommended protective case for E1 class FAQ What level of accuracy does this calibration weight provide? The KERN 307-13 single weight is OIML class E1 with a tolerance of 2.5 mg, suitable for high-precision calibration tasks in laboratories and industry. Is the 307-13 suitable for routine verification of industrial scales? Yes. As an E1-class mass, the KERN 307-13 is intended for reference calibrations and is appropriate for routine verification where tight tolerances are required. How should the weight be stored to maintain accuracy? Store the weight in a protective case and handle it with clean gloves; Metav Werkzeuge recommends a suitable case to avoid contamination and mechanical wear that could affect long-term performance. Does the product include traceability documentation? The KERN 307-13 is supplied with manufacturer identification and is compatible with standard traceability records used in accredited calibration workflows. Metav Werkzeuge, Emmerich am Rhein, Germany · info@metav-werkzeuge.com · +49 2822 7131930
5 kg Precision Test Weight Compact Polished Stainless Steel, OIML E2, 8 mg Tolerance - KERN
Benefit from the combination of high metrological reliability and a compact, corrosion-resistant design: the 5 kg nominal mass with an 8 mg tolerance and OIML E2 classification supports consistent calibration results and traceable measurement chains. Order the KERN 316-13 calibration weight via Metav Werkzeuge or consult our specialists for tailored delivery and packaging advice. KERN 316-13 – Calibration weight, 5 kg, OIML E2 KERN 316-13 is a compact calibration weight in polished stainless steel for high-precision verification of laboratory and industrial balances OIML E2 accuracy class Nominal mass 5 kg, 8 mg tolerance Polished stainless-steel compact form Cylinder Ø 80 × 132.5 mm dimensions Precision that reduces measurement uncertainty The OIML E2 classification and a nominal mass of 5 kg with an 8 mg tolerance make this reference mass suitable for high-precision verification tasks. Laboratories and quality departments benefit from lower measurement uncertainty and a clear basis for conformity assessments; the strict tolerance range helps to maintain calibration consistency across successive checks. The classification indicates that the weight meets internationally recognised criteria for reference masses, enabling straightforward documentation during internal audits or when demonstrating compliance with calibration schedules. Durable, compact design for routine handling A polished stainless-steel finish combines corrosion resistance with easy maintenance, while the compact form keeps handling and storage straightforward in busy workshops and calibration labs. The cylindrical profile (Ø 80 × 132.5 mm) is optimised for stable placement on balance pans and for safe gripping during transfers. Because the unit is highly precise, use with a protective case is recommended to avoid contamination and surface damage that could affect mass values; suitable cases reduce the risk of wear and help preserve long-term stability. Integrates into traceable calibration workflows As a reference mass from KERN, the item is intended for use within traceable metrological chains and routine calibration procedures. Clear identification via SKU and GTIN supports inventory control and documentation processes, and the German origin provides an additional layer of provenance for procurement records. The combination of OIML E2 accuracy and robust construction means this reference mass is well suited to both in-house verification and preparation for accredited calibration services, simplifying adherence to quality management requirements. For high-accuracy verification with the KERN 316-13, contact Metav Werkzeuge in Emmerich for personalised advice on packaging, delivery and integration into existing calibration routines via info@metav-werkzeuge.com or +49 2822 7131930 Technical data Article number: 316 SKU: 316-13 Manufacturer: KERN GTIN: 4045761094949 Tariff number: 84239090 Origin: Germany Facts Nominal mass: 5 kg OIML class: E2 Tolerance (OIML E2): 8 mg Cylinder dimensions: 80 × 132.5 mm (Ø × H) eClass: 32120103 Special features Material: Polished stainless steel Form: Compact form (cylindrical) Recommendation: Use with a protective case for high-accuracy weights FAQ What level of accuracy does this reference mass provide? The KERN 316-13 is specified to OIML E2 class and a tolerance of 8 mg for the 5 kg nominal mass, providing suitability for high-precision verification tasks. Is the material suitable for laboratory environments? Yes, the polished stainless-steel construction of the KERN 316-13 offers corrosion resistance and ease of cleaning, making it appropriate for controlled laboratory and workshop conditions. Are there handling recommendations to preserve accuracy? Avoid direct contact with bare hands, store the weight in a protective case when not in use, and keep it in a stable environment to maintain the calibrated value of the KERN 316-13. Can this weight be used for accreditation or audit documentation? The OIML E2 classification and clear identification support traceability and documentation required for internal audits and calibration records when used as part of an accredited workflow. What makes the compact form advantageous for daily use? The compact cylindrical design (Ø 80 × 132.5 mm) minimises footprint on balance pans, simplifies handling and storage, and aids stable placement during routine calibration checks. KERN; Origin: Germany; Contact: not provided
5 kg Precision Wooden Case For Custom Calibration Weight Sets Unpadded, F2-M3 - KERN
Combine natural wood construction, compatibility with 1 mg–5 kg weight sets and suitability for F2 and M3 classes for reliable storage and handling. Order the wooden weight case 335-080-200 directly via Metav Werkzeuge or ask our consultants if needed. Wooden weight case 335-080-200 — KERN for 1 mg–5 kg weights, classes F2 & M3 The Wooden weight case 335-080-200 is a tailored storage solution for calibration weights, designed to accommodate individual sets from 1 mg up to 5 kg in a compact, unpadded wooden case for professional metrology use. Tailored sets for 1 mg to 5 kg Compatible with classes F2 and M3 Robust natural wood construction Unpadded interior for custom inserts Secure storage designed for calibrated weights The wooden case provides a stable, low-vibration environment ideal for calibration weights. Constructed from natural wood, the casing balances rigidity with gentle contact surfaces to minimise particle transfer and surface damage during storage. Compatibility with F2 and M3 classes ensures that the case meets the organisational requirements for common calibration and testing routines. With a compact footprint and a net weight of 6.7 kg, this storage solution maintains manageable handling while protecting precision masses across the 1 mg–5 kg range. Flexibility through unpadded interiors and customisation An unpadded interior gives technicians and metrology specialists the freedom to install bespoke inserts, foam cut-outs or compact mounting systems tailored to bespoke weight sets. This design choice supports a wide variety of geometries — from compact button-style weights to stacked compact forms — and simplifies preparation for calibration sequences. As a special-made item from KERN, each case can be configured to match project-specific needs; please note that customised cases are treated as special orders and are therefore excluded from returns. Practical advantages for the workshop and laboratory The wooden weight case is a practical component of an efficient measurement workflow: it allows organised storage, quick identification and reduced handling time during calibrations, which supports faster throughput in routine checks. The robust shell and simple internal layout ease maintenance and cleaning, while the ability to create tailored inserts reduces the risk of abrasion or contamination. Supplied as a bespoke solution, the case integrates with broader inventory strategies to reduce the number of separate carriers and to centralise precision equipment management. For tailored configurations and delivery from our Emmerich warehouse, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 to arrange your wooden weight case. Technical Data Article number: 335-080-200 GTIN: 4045761006157 Manufacturer: KERN SKU: 335-080-200 Origin country: DE Facts Case weight: 6.7 kg For weights up to: 5 kg Classification compatibility: F2, M3 Harmonised system (HS) code: 84239090 Special features Material: Wood Interior: Unpadded Suitable for: Individual weight sets Product group: Wooden case for individual weight sets Special note: Special-made items; returns excluded FAQ What weight range fits in this wooden case? The wooden weight case 335-080-200 accommodates weight sets from 1 mg to 5 kg, covering the common mass standards used in calibration work. Is the interior pre-cut for standard weights? The case is supplied unpadded to allow custom inserts; for pre-cut foam or bespoke compartments, order-specific customisation can be arranged for the wooden weight case. Which weight classes are supported by this case? Compatibility is specified for F2 and M3 classes, making the case suitable for routine laboratory and workshop calibration sets supplied by KERN. Are custom configurations returnable? Custom-made wooden cases are treated as special orders and are excluded from returns; this condition applies to individually tailored configurations of the 335-080-200. KERN — Germany — Contact: not provided
5 kg Slotted Test Weight OIML M1, Stainless Steel Turned, 250 mg Tolerance - KERN
Take advantage of precise OIML M1 accuracy combined with robust fine‑turned stainless steel construction and a slotted Type A design for straightforward use in routine calibration tasks. Order the mass standard directly via Metav Werkzeuge or consult our specialists for integration advice. KERN 347-135 slotted calibration weight (OIML M1, 5 kg) The KERN 347-135 is a slotted calibration weight designed for the verification of industrial and laboratory balances, delivering consistent performance as an individual mass standard. OIML class M1 accuracy 5 kg nominal value Fine‑turned stainless steel finish Slotted weight (Type A) compatibility Reliable accuracy for routine verification The OIML M1 classification and a nominal value of 5 kg make this mass standard suitable for regular verification of commercial and industrial weighing equipment. The specified tolerance of ±250 mg provides a quantifiable margin for conformity checks, which simplifies decision‑making when assessing balance performance. Using a declared accuracy class means the mass serves as a dependable reference during routine in‑house verifications and contributes to process reliability without requiring specialised metrology training. Built for compatibility and practical handling The slotted design (Type A) of this mass enables secure mounting on standard carrier rods and slotted holders commonly found in calibration rigs. With cylinder dimensions of 100×79 mm, the geometry balances compact footprint with a stable contact surface for most bench and floor scales. The fine‑turned stainless steel surface reduces contamination risk and permits simple cleaning, which sustains long‑term measurement stability and lowers maintenance effort in busy workshop environments. The 347‑135 configuration supports seamless integration into existing test routines. Durable material and traceable identification for workflows Manufactured from stainless steel and produced in Germany, this single test weight combines material resilience with traceable identification that aids inventory control and quality documentation. The clearly assigned article number and GTIN allow straightforward stock management and cross‑referencing within procurement systems. For facilities aiming to centralise metrology supplies, the robust construction minimises replacement cycles and supports a consistent calibration regime across multiple measurement points. Contact Metav Werkzeuge for tailored advice on integrating the KERN 347-135 into existing calibration procedures or to arrange delivery from our Emmerich warehouse Technical data Article number: 347 SKU: 347-135 GTIN: 4045761256392 Manufacturer: KERN Country of origin: DE Facts Nominal value: 5 kg Tolerance (OIML M1): ±250 mg Cylinder dimensions: 100×79 mm Tariff number: 84239090 Special features Material: fine‑turned stainless steel OIML class: M1 Weight type: slotted weight (Type A) Compatibility: Compatible with all slotted weights/holder rods Type A FAQ What accuracy class does this weight meet? The KERN 347-135 meets OIML M1 classification with a tolerance of ±250 mg, making it suitable for routine checks of industrial and commercial scales. Is this mass standard suitable for laboratory use? As an OIML M1 individual weight, the KERN 347-135 is appropriate for many laboratory verification tasks, though high‑precision laboratory references may require classes with tighter tolerances. What is the material and surface finish of the weight? The 347-135 is made from fine‑turned stainless steel, offering corrosion resistance and easy cleaning to maintain stable measurement conditions. Will the slotted design fit existing holders? Yes; the slotted configuration is Type A and is compatible with standard slotted holders and carrier rods designed for Type A weights. Which dimensions and identification numbers are provided for ordering? Nominal value 5 kg, cylinder 100×79 mm; article number 347, SKU 347-135, GTIN 4045761256392. KERN — Germany — Contact: info@metav-werkzeuge.com, +49 2822 7131930
5 kg Test Weight Button Shape, OIML Class E2, Polished Stainless Steel, 8 mg Tolerance - KERN
Take advantage of the combination of proven metrological accuracy, robust stainless-steel construction and ergonomic handling for reliable routine calibrations. Order the calibration weight directly via Metav Werkzeuge or ask our consultants for a suitable DAkkS calibration or protective case. KERN 317-13 — 5 kg calibration weight, OIML E2, polished stainless steel The KERN 317-13 is a 5 kg OIML E2 calibration weight designed for precise verification of laboratory and workshop scales, featuring a polished stainless-steel finish and ergonomic knob shape. OIML class E2 accuracy 5 kg nominal mass with knob shape Polished stainless steel surface Tight tolerance: 8 mg Achieve consistent measurement accuracy in routine workflows The weight delivers traceable accuracy thanks to its OIML E2 classification and a rated tolerance of 8 mg, ensuring repeatable calibration results for mid-range laboratory and commercial scales. The nominal mass of 5 kg provides a reliable reference point for verification cycles and instrument checks, reducing uncertainty in measurement chains. Using a standardised reference simplifies documentation and supports quality-control procedures in production and testing environments. Practical handling that speeds up calibration tasks An integrated knob shape improves grip and placement, permitting safe and efficient handling during frequent use. The compact cylindrical dimensions (80 × 140 mm) combine with the knob design to reduce the risk of accidental contact with the weighing surface, lowering the chance of contamination or damage. This ergonomic detail shortens handling time during routine checks and contributes to smoother calibration workflows. Durable material for long service life and cleanliness Manufactured from polished stainless steel, the mass resists corrosion and is easy to clean, supporting hygienic conditions in laboratory and industrial environments. The surface finish reduces particle adhesion and simplifies visual inspection. The material choice ensures longevity even under regular use, which in turn reduces replacement frequency and supports sustainable workshop operations. Compliance, calibration options and recommended accessories Legal first-verification by EU type approval will not be possible after 30 November 2025; therefore a traceable calibration such as DAkkS calibration is recommended for most applications to maintain documented measurement reliability. For secure transport and to protect the reference mass from dings and contamination, a protective case is advised. The product supports standard calibration and verification routines and integrates into existing quality-management systems. Contact Metav Werkzeuge in Emmerich to arrange a DAkkS calibration, to choose a suitable protective case for the KERN 317-13 or to discuss delivery and documentation options. Technical data Article number: 317 SKU: 317-13 GTIN: 4045761003743 Manufacturer: KERN Origin: Germany HS tariff: 84239090 Facts Nominal mass: 5 kg Tolerance (OIML E2): 8 mg Dimensions (cylindrical): 80 × 140 mm Form: Knob shape Special features Material: Polished stainless steel OIML class: E2 Category: Single calibration weight Recommended accessory: Protective case Suitable for laboratory and workshop scale verification FAQ What does OIML class E2 mean for calibration accuracy? OIML class E2 indicates a high level of metrological precision; the KERN 317-13 meets the class limits and is suitable as a reference mass for many laboratory and commercial verification tasks. Can this weight be used for routine scale checks in a production environment? Yes, the 5 kg nominal mass and 8 mg tolerance make this calibration weight appropriate for routine checks and internal verification procedures in workshops and production labs. Is a protective case necessary for the calibration weight? A protective case is recommended to preserve the polished surface and prevent mechanical damage during storage or transport; Metav Werkzeuge can advise on compatible cases. Is DAkkS calibration available for this weight? DAkkS calibration is recommended and widely accepted as equivalent for most applications; arranging a DAkkS certificate is advised to ensure documented traceability. What are the material and handling benefits of the KERN 317-13? Polished stainless steel offers corrosion resistance and easy cleaning, while the knob shape improves safe handling and precise placement on scale pans. Metav Werkzeuge, Emmerich am Rhein, Germany — info@metav-werkzeuge.com — +49 2822 7131930
5 mg Precision Calibrated Wire Weight E1, Polished Stainless Steel, 0.003 mg Tolerance - KERN
Reliable calibration for analytical balances is achieved with the combination of OIML E1 certification, a nominal 5 mg mass and a polished stainless steel wire design; minimal tolerance of 0.003 mg ensures repeatable results — Order the milligram weight directly via Metav Werkzeuge or ask our consultants if needed. KERN Milligram Weight 308-33 — OIML E1, 5 mg wire form The KERN Milligram Weight 308-33 is a precision 5 mg reference mass in wire form, intended for high-accuracy calibration and verification of analytical balances in laboratories and calibration facilities. OIML class E1 certified accuracy 5 mg nominal value, wire form Polished stainless-steel construction Consistent metrology for high-precision balances This reference mass delivers reliable calibration backed by the strict tolerances of OIML E1, making it suitable for environments that demand traceable results. The nominal 5 mg value and the class rating are decisive for comparative weighing and verification of analytical instruments. By choosing a mass with a 0.003 mg tolerance, measurement uncertainty is reduced during calibration procedures, which supports quality assurance and regulatory compliance in laboratories. Design and handling that protect measurement integrity Manufactured in polished stainless steel and produced as a wire form, the mass minimises surface area while offering stable mechanical properties that resist corrosion and contamination. The slender geometry simplifies placement on analytical pans and reduces air buoyancy errors in tiny mass ranges. For longevity and to preserve the metrological characteristics, storage in a protective case is recommended due to the high accuracy class. Practical application in calibration workflows Ideal for calibration laboratories, quality departments and precision workshops, this reference mass is used for routine verification, balance adjustment and comparison tests. The small nominal value is specifically matched to analytical instruments used in pharmaceuticals, research and fine material analysis. Its construction and class rating ensure repeatable results, supporting a streamlined calibration routine and dependable instrument performance. Contact Metav Werkzeuge to discuss KERN calibration masses and secure supply from our Emmerich facility. Technical data Article number: 308-33 Manufacturer: KERN SKU: 308-33 GTIN: 4045761002951 Facts Nominal value: 5 mg Tolerance (OIML): ±0.003 mg OIML class: E1 Origin: DE Tariff code: 84239090 Special features Polished stainless-steel material Wire form design Milligram reference mass for analytical balances Recommended storage case for protection FAQ What tolerance does this reference mass provide? The mass has an OIML tolerance of ±0.003 mg, specified for this 5 mg reference mass and suitable for high-precision verification. Is the mass suitable for analytical balance calibration? Yes; the KERN Milligram Weight 308-33 in wire form is designed specifically for calibration and verification of analytical balances where milligram-level accuracy is required. What material is the mass made from and why does it matter? The mass is made from polished stainless steel, which offers corrosion resistance and stable mass characteristics, helping to maintain precision over repeated use. Is a protective case necessary for this weight? Due to the very fine tolerance of this milligram mass, a protective case is recommended to prevent contamination and handling damage, preserving its metrological properties. Can this weight be used in routine laboratory checks? Yes; the mass is suitable for routine verification and comparison testing in laboratories, calibration shops and quality control departments that require traceable milligram calibration. Metav Werkzeuge, Emmerich am Rhein — info@metav-werkzeuge.com | +49 2822 7131930
5 mg Precision Caliper Test Weight Plate F1, Polished Stainless Steel, 0.02 mg Tolerance - KERN
Take advantage of the combination of OIML F1 accuracy, a nominal value of 5 mg and a polished stainless‑steel disc for reproducible microbalance calibration; order directly via Metav Werkzeuge or consult our specialists for calibration and handling advice. KERN 328-03 milligram calibration weight — OIML F1, 5 mg, polished stainless‑steel disc The KERN 328-03 is a precision milligram calibration weight designed for microbalance verification and laboratory quality assurance, presented in a flat disc form for stable placement on balance pans. OIML F1 class accuracy Nominal value: 5 mg Polished stainless‑steel construction Disc shape optimised for microbalances Consistent microgram‑level accuracy for routine verification The calibration weight delivers OIML F1 accuracy with a stated tolerance of 0.02 mg, which translates into lower measurement uncertainty when used for routine verification of analytical and microbalances. This level of precision supports repeatable quality checks and helps maintain compliance with internal calibration plans. The clear numeric specification of the tolerance enables straightforward comparison with balance performance data and documentation requirements. Robust, low‑contamination design for everyday use Made from polished stainless steel, the weight resists corrosion and surface contamination, making handling and cleaning simple while preserving metrological properties. The disc shape provides a reliable seating on common microbalance pans, reducing the risk of tipping and ensuring stable readings during calibration cycles. This construction minimises handling‑induced variation and extends useful service life in laboratory and workshop environments. Calibration pathway and regulatory note for traceability EC initial verification of test weights will not be possible from 30 November 2025; for traceable results a DAkkS calibration is recommended, as it fulfils the needs of most applications requiring documented traceability. The nominal 5 mg value makes this weight suitable for small‑mass standards and microbalance adjustments, while formal calibration reports provide the evidence necessary for audits and quality management systems. Practical handling, storage and accessory recommendations Due to the fine accuracy, storage in a protective case is advised to avoid surface damage and contamination; an etui is recommended for transport and secure storage. When integrating the weight into calibration procedures, allow for thermal equilibration with the balance environment and use tweezers or gloves to avoid fingerprints. Clear labelling and secure storage help maintain the weight’s condition and ensure consistent calibration outcomes. For microbalance calibration tasks that demand milligram precision, contact Metav Werkzeuge in Emmerich for DAkkS calibration options, case recommendations and expert guidance via info@metav-werkzeuge.com or by phone at +49 2822 7131930 (WhatsApp +49 170 2837271) Technical Data SKU: 328-03 Article number: T328-A GTIN: 4045761240339 Manufacturer: KERN Origin: CN Core figures Nominal value: 5 mg OIML class: F1 Tolerance (OIML): 0.02 mg Material: Stainless steel Design / Special features Disc form (plättchen) Polished surface finish Intended for microbalance calibration Harmonised tariff code: 84239090 FAQ What level of accuracy does this calibration weight provide? The KERN 328-03 milligram calibration weight is specified as OIML F1 with a tolerance of 0.02 mg, offering accuracy suitable for microbalance verification and low‑mass routine checks. Is this weight suitable for analytical and microbalances? Yes, the nominal value of 5 mg and the disc form make this weight appropriate for microbalance applications and for use as a small‑mass standard in laboratory calibration procedures. How should the weight be handled and stored to preserve accuracy? Handle the calibration weight with tweezers or gloves and store it in a protective case; Metav Werkzeuge recommends using an etui to prevent contamination and surface damage which can affect readings. Can the weight be officially verified or calibrated for traceability? EC initial verification of test weights will not be possible from 30 November 2025; a DAkkS calibration is recommended for traceability and is considered equivalent for most purposes. What material is the weight made of and why does that matter? The weight is made from polished stainless steel, which provides corrosion resistance and a smooth surface that reduces contamination and wear, supporting long‑term stability. Metav Werkzeuge, Emmerich am Rhein — Email: info@metav-werkzeuge.com — Tel: +49 2822 7131930 — WhatsApp: +49 170 2837271
5 mg Precision Caliper Test Weight Plated Disc Stainless Steel F2 Tolerance 0.06 mg - KERN
Take advantage of high-precision measurement, robust stainless-steel construction and traceable calibration options to secure reliable results for laboratory and quality-control processes. Order the milligram weight directly via Metav Werkzeuge or ask our consultants if needed. KERN 338-03 Milligram weight (OIML F2, 5 mg, polished stainless steel disc) The KERN 338-03 is a precision OIML F2 milligram weight in disc form, designed for calibration and verification of analytical and laboratory balances OIML class F2 accuracy Nominal value 5 mg Polished stainless steel disc Tolerance 0.06 mg Consistent accuracy for traceable calibration The KERN 338-03 delivers OIML F2 performance with a nominal value of 5 mg, offering a certified tolerance of 0.06 mg that supports dependable calibration routines. In practical terms, this tolerance ensures the weight contributes minimal measurement uncertainty when used to verify analytical and microbalances, so production control and laboratory quality assurance benefit from repeatable, documented results. The specification aligns with established metrology standards, facilitating integration into accredited calibration procedures. Durable design that protects measurement integrity Produced in polished stainless steel and shaped as a compact disc, the weight combines corrosion resistance with a surface finish that reduces particulate adherence and handling contamination. The form factor eases placement on small pans and minimises disturbance during weighing. Due to the high accuracy class, a protective case is strongly recommended to avoid surface damage and maintain calibration stability; suitable cases are listed under accessories and should be considered as part of a long-term measurement strategy. Calibration pathway and regulatory note for procurement planning For traceability and acceptance in most applications, a DAkkS calibration is recommended; it provides an accredited certificate compatible with many laboratory accreditation schemes. Please note that EG initial verification of weights will not be possible after 30.11.2025; therefore, planning for accredited calibration is advised when specifying weights for regulated environments. The robust specification and traceable calibration route make this weight suitable for routine checks in laboratories, R&D and quality-control workflows where microgram-level confidence is required. Contact Metav Werkzeuge for personalised calibration advice and to reserve stock from our Emmerich warehouse—our consultants will advise on certification options and suitable cases to protect the KERN 338-03 milligram weight Technical data Article number: T338-A SKU: 338-03 Manufacturer: KERN Origin: CN GTIN: 4045761240247 Customs tariff number: 84239090 Facts Nominal value: 5 mg Tolerance (OIML): 0.06 mg OIML class: F2 Form: disc Special features Material: polished stainless steel Design: milligram disc for analytical balances Recommendation: use protective case (see accessories) Calibration advice: DAkkS calibration recommended Note: EG initial verification not possible after 30.11.2025 FAQ What accuracy class does this weight meet? The KERN 338-03 milligram weight complies with OIML class F2 and is specified with a tolerance of 0.06 mg. Is an accredited calibration available for this weight? A DAkkS calibration is recommended for the KERN 338-03; Metav Werkzeuge can advise on calibration options and certification suitable for laboratory accreditation. What material and shape are used to reduce contamination? The weight is made from polished stainless steel and formed as a compact disc to minimise surface contamination and ease handling. For which instruments is this weight appropriate? This milligram weight is intended for calibration and verification of analytical and microbalances used in laboratories and quality-control departments. Is a protective case necessary for long-term accuracy? Due to the high accuracy class, a protective case is strongly recommended and is available in the accessories section KERN — Origin: CN — GTIN: 4045761240247
5 mg Precision Caliper Weight Three-Point E2 Stainless Steel Polished, 0.006 mg Tolerance - KERN
Combine OIML E2 accuracy with a polished stainless steel disc and a tight 0.006 mg tolerance for repeatable microbalance verification; order directly via Metav Werkzeuge or request advice from our consultants. KERN 318-03 Milligram Weight (OIML E2, 5 mg) — Polished Stainless Steel KERN 318-03 Milligram Weight is a polished stainless steel disc designed for high-precision calibration and verification of microbalances and laboratory scales. OIML Class E2 accuracy Nominal value 5 mg Polished stainless steel disc Tolerance 0.006 mg Precision that supports reliable calibration The OIML E2 classification denotes a high-precision calibration standard suitable for microbalance checks and laboratory verifications. With a nominal value of 5 mg and a declared tolerance of 0.006 mg, this milligram weight is intended to provide reproducible reference mass for sensitive measurement chains. Such a tight tolerance reduces uncertainty in calibration routines and allows measurement results to be traced with confidence. The classification is recognised in international metrology practice and is particularly relevant where microgram-level stability is required. Design and material tailored for consistent results Manufactured from stainless steel with a polished finish and presented in a compact disc shape, the weight is engineered to minimise surface contamination and facilitate handling on microbalances. The polished surface reduces particulate adhesion, which supports consistent readings during repeated use. Given the precision class of this item, a protective case is recommended to avoid contamination or wear during storage and transport; accessories for secure storage are listed in the accessory section and should be considered for long-term stability. Application scope and calibration guidance Intended for laboratory and metrology environments, the weight is suitable for routine verification of microbalances and for use in controlled calibration procedures. The product is delivered as a single 5 mg reference mass and is appropriate where OIML E2 standards are required. Note that the EG initial verification of calibration weights will no longer be available after 30 November 2025; a DAkkS calibration is recommended as an equivalent route for many applications. For documentation and traceability, calibration certificates can be organised via Metav Werkzeuge as part of the procurement process. Contact Metav Werkzeuge in Emmerich for expert advice on DAkkS calibration, case recommendations and ordering of the KERN 318-03 Milligram Weight Technical Data Article number: T318-A SKU: 318-03 GTIN: 4045761240421 Manufacturer: KERN Origin: CN Facts Nominal value: 5 mg Tolerance (OIML): 0.006 mg OIML class: E2 Commodity code: 84239090 Special features Material: Polished stainless steel Form: Disc (plättchenform) Designed for microbalance and laboratory verification Protective case recommended due to high accuracy DAkkS calibration recommended; EG initial verification ends 30.11.2025 FAQ What level of accuracy can be expected from this weight? The KERN 318-03 Milligram Weight is manufactured to OIML E2 standards and offers a declared tolerance of 0.006 mg, making it suitable for high-precision microbalance verification. Is a calibration certificate available for the 318-03? A DAkkS calibration is recommended and can be arranged for the KERN 318-03 Milligram Weight; this provides documented traceability for laboratory use. Which storage conditions are advised for best long-term stability? Storage in a clean, dry environment and use of a protective case are advised to preserve the polished stainless steel surface and maintain the 0.006 mg tolerance. Can the weight be used for routine balance checks in industry? Yes. The 5 mg nominal value and OIML E2 classification make the product suitable for routine verification of microbalances and precise scale systems. Metav Werkzeuge, Emmerich am Rhein — Email: info@metav-werkzeuge.com — Phone: +49 2822 7131930
5 mg Precision Caliper Weight Three-Point Platter Polished Stainless Steel, OIML M1 - KERN
Take advantage of precise OIML M1 accuracy and the compact 5 mg nominal value for reliable microbalance checks; the polished stainless steel plate design reduces handling wear and simplifies cleaning. Order directly via Metav Werkzeuge or consult our specialists for calibration options and application advice. KERN 348-03 Milligram weight (5 mg, OIML M1) The Milligram weight KERN 348-03 is a polished stainless steel calibration plate designed for microbalances and precision scales in laboratories and quality control environments OIML class M1 precision Nominal value 5 mg Polished stainless steel plate Tolerance ±0.2 mg Precise calibration performance for microbalances The KERN 348-03 offers OIML M1 conformity and a nominal mass of 5 mg, delivering reproducible results required for fine measurement tasks. Its specified tolerance of ±0.2 mg supports traceable adjustments and verification routines on high-resolution instruments. By relying on these measurable specifications, laboratories and workshops gain a consistent baseline for instrument drift assessment, enabling predictable uptime and reduced rework in production environments. Robust material and compact plate form for everyday handling Manufactured from polished stainless steel, the calibration plate combines corrosion resistance with a finish that minimises contamination and eases cleaning. The plate form supports secure placement on pan-type microbalances and allows controlled handling with tweezers or gloves, reducing the risk of mass alteration through fingerprints or debris. This design choice balances durability with the delicate requirements of milligram metrology, giving technicians a tangible benefit in routine weighing and storage. Calibration traceability and compliance guidance Given regulatory changes, note that first verification under the European pattern approval will not be available after 30 November 2025; for most applications a DAkkS calibration is recommended as an equivalent, traceable solution. A certified calibration report provides documented confidence for audits and internal quality systems, while periodic recalibration maintains measurement integrity. When traceability and documented evidence are essential, integrating a DAkkS-certified calibration into the maintenance plan sustains instrument reliability and audit readiness. Contact Metav Werkzeuge in Emmerich for DAkkS-calibrated units, application guidance and to secure the right calibration weight for precision tasks Technical Data Article number: 348-03 SKU: 348-03 Manufacturer: KERN GTIN: 4045761240155 Country of origin: CN HS code: 84239090 Facts Nominal value: 5 mg Tolerance (OIML): 0.2 mg OIML class: M1 Special features Material: Polished stainless steel Form: Plate Recommended: DAkkS calibration Note: EG first verification not possible after 30.11.2025 FAQ What level of accuracy does this weight provide? The KERN 348-03 is specified to OIML class M1 with a tolerance of ±0.2 mg, suitable for high-resolution balances and microbalances. Can the weight be used for routine calibrations in a QA lab? Yes, the 5 mg nominal value and M1 conformity make the calibration plate appropriate for routine checks and adjustments on precision scales and microbalances. Is a specific calibration certificate available? A DAkkS calibration is recommended for the KERN 348-03 and provides traceable documentation accepted for most industrial and laboratory requirements. How should the weight be handled and stored to maintain accuracy? Handle the weight with appropriate tweezers or gloves to avoid contamination; store it clean and dry in a protective case to preserve the polished stainless steel surface and dimensional stability. Metav Werkzeuge, Emmerich am Rhein, Germany — Email: info@metav-werkzeuge.com — Tel: +49 2822 7131930 — WhatsApp: +49 170 2837271
50 g Calibration Hook Weight Stainless Turned, OIML Class M1, 3 mg Tolerance - KERN
Take advantage of high measurement reliability, corrosion-resistant construction and compact hook design for efficient scale calibration; order the Hook weight KERN 347-066 directly via Metav Werkzeuge or ask our consultants if needed. Hook weight KERN 347-066 — OIML Class M1, 50 g, precision-turned stainless steel the Hook weight KERN 347-066 is a precision calibration weight designed for hanging scales and balances in workshops and inspection departments OIML class M1 conformity Nominal mass 50 g with ±3 mg tolerance Precision-turned stainless steel finish Hook design for hanging and quick checks Consistent metrology through certified accuracy The weight meets OIML Class M1, offering a nominal mass of 50 g with a declared tolerance of ±3 mg, which translates into repeatable calibration results for routine verification and internal checks. OIML classes define permissible deviations for calibration masses; the M1 specification balances accuracy and affordability for many industrial and laboratory applications. Using a certified mass reduces measurement uncertainty and supports traceable adjustments of balances and hanging scales, ensuring process stability and reliable quality control. Durable construction for regular calibration cycles Manufactured from precision-turned stainless steel, the component combines corrosion resistance with dimensional stability. The fine-machined finish minimises surface contamination and wear, which preserves the mass value over repeated handling. The compact cylinder form (18×36 mm) and integrated hook design permit secure attachment to suspension points and fast exchange during routine checks. This mechanical design reduces handling time and supports efficient calibration workflows on the shop floor or in quality departments. Practical application and inventory integration Intended as a single calibration mass for everyday verification tasks, the item complements both portable hanging scales and stationary balances used in production and incoming goods inspection. The compact mass (0.05 kg) is easy to store and integrate into calibration kits. Originating from Germany, the piece is finished to industrial standards and is identified by SKU 347-066 and GTIN 4045761256200 for consistent inventory tracking. For complex verification procedures that require documented traceability, incorporation of certified masses like this improves documentation and audit readiness. Contact Metav Werkzeuge to confirm suitability of the KERN hook weight 347-066 for specific balances, request current availability or technical datasheets via info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 347 SKU: 347-066 Manufacturer: KERN GTIN: 4045761256200 Country of origin: DE Facts Nominal mass: 50 g Mass (kg): 0.05 kg Tolerance: ±3 mg Cylinder dimensions: 18×36 mm Tariff code: 84239090 eClass: 32120103 Special features Precision-turned stainless steel OIML Class M1 conformity Hook weight for hanging scales Fine-machined surface Category: Calibration weights FAQ What accuracy can be expected from this calibration weight? The declared tolerance for the KERN hook weight 347-066 (OIML Class M1) is ±3 mg at the nominal value of 50 g, providing consistent accuracy for routine verification and adjustment tasks. Is the hook design compatible with hanging scales? Yes, the hook form is specifically intended for secure attachment to hanging scales and suspension points, enabling quick and repeatable checks. What material is the weight made from? The mass is made from precision-turned stainless steel, which offers corrosion resistance and stable mass retention under regular use. Can this weight be used for documented traceability in internal audits? When used as part of a documented calibration routine, the KERN weight 347-066 supports internal traceability; further calibration certificates should be requested if formal external traceability is required. How compact is the mass for storage in calibration kits? With a nominal mass of 50 g and cylinder dimensions of 18×36 mm, the component is compact and suitable for inclusion in portable calibration kits or fixed instrument benches. Manufacturer: KERN — Address: Germany — Contact details: not provided
50 g Calibration Weight Button Form Stainless Steel Fine-Turned, OIML Class M3 30 mg Tolerance - KERN
Take advantage of the combination of certified accuracy, robust stainless-steel construction and compact dimensions for reliable routine verification and long-term traceability; order directly via Metav Werkzeuge or consult our specialists for technical matching and delivery options. KERN 367-06 calibration weight – OIML M3, 50 g, stainless-steel button form A KERN 367-06 calibration weight designed for routine checks of laboratory and industrial balances, supplied as a single, fine-turned stainless-steel button weight for precise mass verification. OIML class M3 certified Nominal mass 50 g Fine-turned stainless steel finish Button form for stable placement Certified accuracy for routine verification and traceability The OIML class M3 classification ensures the mass standard meets internationally recognised tolerances, making it suitable for regular verification of shop-floor and laboratory balances. With a nominal mass of 50 g and a documented 30 mg tolerance, this weight supports reproducible results during daily checks and simple comparative calibrations. The certification reduces uncertainty in routine measurements and aids compliance with internal quality procedures. Durable materials that reduce downtime and contamination risk Manufactured from fine-turned stainless steel, the component combines corrosion resistance with a smooth surface that minimises particulate adhesion and eases cleaning. The button form geometry provides stable seating on weighing pans and simple handling during exchange procedures. These construction choices increase service life and reduce the frequency of replacements, contributing to uninterrupted production and fewer calibration-related interruptions. Compact design for easy integration with balances and workflows With compact dimensions of 18×28 mm, the weight fits a wide range of tabletop and bench balances without obstructing surrounding equipment. Produced by KERN in Germany, the unit is a single-piece mass standard suitable for routine on-site checks, balance adjustment and training of measuring personnel. The small footprint and clear nominal marking simplify storage and handling, so calibration routines remain efficient and repeatable. Practical documentation and batch identification for quality records The weight is supplied as an individual test mass suitable for inclusion in inspection logs and quality records. Clear identifiers such as the SKU and GTIN enable traceable inventory management and prevent mix-ups during multi-weight procedures. The combination of a certified tolerance and robust finish supports confident recording of verification results in accreditation and internal audits. Contact Metav Werkzeuge today to secure the KERN 367-06 calibration weight from local stock in Emmerich and to discuss compatibility with specific balances or calibration intervals Technical data Article number: 367 SKU: 367-06 GTIN: 4045761257313 Manufacturer: KERN Facts Nominal mass: 50 g Mass (kg): 0.05 Tolerance: 30 mg Dimensions: 18×28 mm Customs tariff: 84239090 eClass: 32120103 Special features Form: button form Material: stainless steel, fine-turned OIML class: M3 Origin: Germany FAQ How accurate is this calibration weight? The calibration weight is OIML class M3 with a stated tolerance of 30 mg for the 50 g nominal mass, providing reliable accuracy for routine verification tasks. Can this weight be used on precision laboratory balances? Yes; the KERN 367-06 is intended for routine checks and comparative verifications on a wide range of laboratory and industrial balances where M3 class weights are specified. How should the stainless-steel weight be handled and cleaned? Handle the fine-turned stainless-steel surface with clean gloves or tweezers to avoid oils; clean gently with a lint-free cloth and an appropriate non-corrosive cleaner to maintain surface integrity. Is the weight supplied with traceable identification for quality records? The product is delivered as a single test mass with SKU and GTIN identifiers suitable for inventory and inspection documentation. What are the physical dimensions and form of the weight? The unit is a compact button form mass with dimensions of 18×28 mm, designed for stable placement on weighing pans. Metav Werkzeuge, Emmerich am Rhein, Email: info@metav-werkzeuge.com, Phone: +49 2822 7131930
50 g Calibration Weight Button Shape Fine-Turned Stainless Steel, OIML M1 Tolerance 3 mg - KERN
Combine the OIML M1 accuracy with a precision-turned stainless steel body and compact knob shape for dependable, repeatable calibrations; order the calibration weight directly via Metav Werkzeuge or consult our specialists if additional data or DAkkS calibration is required. KERN 347-06 calibration weight (OIML class M1, 50 g) The KERN 347-06 is a precision calibration weight in a knob shape, designed for scale verification in laboratories and industrial workshops. OIML class M1 accuracy, tolerance 3 mg Precision-turned stainless steel body Compact knob shape for safe handling Suitable for scale verification and calibration Consistent traceability for reliable results As an OIML M1 single weight with a nominal value of 50 g and a stated tolerance of 3 mg, this calibration unit supports reduced measurement uncertainty in verification tasks. The classification ensures compatibility with many laboratory and industrial metrology procedures; when used within a documented calibration scheme, the result is enhanced traceability and comparable readings across different instruments. The combination of class and tolerance directly benefits quality control processes by providing objective, reproducible reference points for balances and scales. Durable construction and handling that reduces errors Manufactured from precision-turned stainless steel, the weight resists corrosion and surface wear that can alter mass over time. The knob shape improves manual handling, minimising contact with the measurement surface and thereby cutting the risk of transfer of oils or debris that affect accuracy. With compact cylinder dimensions of approximately 18 × 29.5 mm, the design balances ease of use with stability on weighing pans, helping technicians perform repeatable checks with fewer handling-related deviations. Practical guidance on calibration and compliance The product is well suited to routine verification and calibration tasks; however, note that EC type approval for calibration weights will not be available after 30 November 2025. For traceable results that meet most industrial and laboratory requirements, a DAkkS calibration is recommended as an equivalent solution for evidence of accuracy. DAkkS calibration provides an accredited certificate and establishes a documented chain of measurement traceability that integrates readily into quality management systems and audit trails. A compact reference weight for busy workshops and labs This single weight serves as a practical reference for technicians and calibration engineers who require a small, robust standard for frequent checks. The durable material and precise machining lower the need for immediate replacement, while the clear technical class and tolerance support informed decisions within maintenance schedules. As part of a calibrated set or as an individual reference, it contributes to consistent process control and confidence in day-to-day weighing results. Contact Metav Werkzeuge in Emmerich for DAkkS-calibrated delivery, detailed documentation and specialist advice on the KERN 347-06 calibration weight Technical data Article number: 347 SKU: 347-06 GTIN: 4045761008700 Manufacturer: KERN Origin: DE Commodity code: 84239090 Specifications Nominal value: 50 g Mass (kg): 0.05 kg Tolerance (OIML M1): 3 mg Dimensions (cylinder): 18 × 29.5 mm Materials & features Precision-turned stainless steel Knob shape (button form) OIML class M1 EC type approval not available from 30 Nov 2025 DAkkS calibration recommended FAQ What accuracy class does this calibration weight have? The KERN 347-06 is classified as OIML M1 with a tolerance of 3 mg, suitable as a reference for many laboratory and industrial scale verifications. Is the material resistant to corrosion and wear? Yes, the precision-turned stainless steel construction of the calibration weight offers good resistance to corrosion and surface degradation, maintaining long-term stability. Can this weight be used for legal-for-trade verification? EC type approval for weights will not be possible after 30 November 2025; for most applications the KERN 347-06 combined with a DAkkS calibration provides the required traceability and documented accuracy. How should handling and storage be managed to preserve accuracy? Handle the weight by the knob to avoid touching the measurement surfaces, store it in a clean, stable environment and avoid temperature extremes to keep the mass stable and minimise contamination. Is traceability to national standards available for this weight? Traceability is achieved through accredited calibration services; a DAkkS calibration for the KERN 347-06 provides an official certificate linking measurements to national standards. Metav Werkzeuge, Emmerich am Rhein, Germany — Email: info@metav-werkzeuge.com — Tel: +49 2822 7131930 — WhatsApp: +49 170 2837271
50 g Calibration Weight Button Shape Polished Stainless Steel E1 Class, 0.03 mg Tolerance - KERN
Take advantage of the combination of laboratory-grade accuracy, robust stainless-steel construction and compact handling for reliable calibration results; order the KERN 307-06 through Metav Werkzeuge or consult our specialists for assistance. KERN 307-06 single calibration weight — 50 g, OIML Class E1 The KERN 307-06 is a single calibration weight designed as a high-precision reference for analytical and precision balances in laboratories and industrial metrology. OIML Class E1 precision 50 g nominal mass Polished stainless steel finish Button form for secure handling Consistent high-precision results for analytical balances The 50 g reference offers an accuracy level aligned with OIML Class E1, providing a nominal tolerance of ±0.03 mg. This degree of precision makes the weight suitable for the calibration and verification of analytical and microbalances where traceable mass standards are required. By using a defined international class, calibration routines and quality records gain comparability and legal traceability, supporting conformity with laboratory procedures and internal quality management systems. Durable material and handling that protect measurement integrity Manufactured from polished stainless steel, the weight combines corrosion resistance with a surface that is easy to clean, reducing contamination risks during use. The button form facilitates safe handling with tweezers or gloves, limiting skin contact and mass variation. The compact physical dimensions (cylinder 18×28 mm) and a mass of 0.05 kg support convenient storage and repeatable placement on balance pans, improving day-to-day operational efficiency in routine calibration tasks. Workflow benefits, traceability and professional supply As a single calibration standard, this reference weight simplifies inventory and calibration planning: a compact solution that supports regular checks and ensures measurement confidence across shifts. Manufactured in Germany and produced to exacting standards, the weight contributes to reproducible measurement chains and reduced downtime for verification tasks. For storage and added protection, a dedicated case is recommended to maintain the standard’s condition and metrological validity during transport and storage. Contact Metav Werkzeuge in Emmerich for certified KERN calibration weights and expert advice on integrating the 50 g E1 standard into existing calibration procedures — eMail: info@metav-werkzeuge.com or phone +49 2822 7131930 Technical data Article number: 307 SKU: 307-06 GTIN: 4045761002715 Manufacturer: KERN Country of origin: DE Facts Nominal mass: 50 g Mass (kg): 0.05 kg Tolerance (OIML E1): ±0.03 mg Cylinder dimensions: 18×28 mm Tariff number: 84239090 Special features Single calibration weight Polished stainless steel Button form (knob) OIML Class E1 certified Case recommended for protection FAQ What level of accuracy does this calibration weight offer? The KERN 307-06 provides OIML Class E1 accuracy with a tolerance of ±0.03 mg, suitable for analytical and precision balances. For which instruments is the 50 g standard appropriate? This 50 g reference weight is intended for the calibration and verification of analytical balances and high-precision laboratory scales. How does the material affect long-term use? Made from polished stainless steel, the KERN 307-06 resists corrosion and is simple to clean, helping to preserve mass stability over time. KERN — Germany; Dealer: Metav Werkzeuge, Emmerich; eMail: info@metav-werkzeuge.com, Tel: +49 2822 7131930
50 g Calibration Weight Eco Form Polished Stainless Steel 0.3 mg OIML F1 - KERN
Take advantage of precise conformity to OIML Class F1, the low 0.3 mg tolerance and robust polished‑stainless finish to keep calibration routines reliable and reproducible. Order the calibration weight directly via Metav Werkzeuge or request advice from our consultants for tailored application support. KERN 326-06 Calibration Weight – OIML Class F1, 50 g, polished stainless steel The KERN 326-06 calibration weight is a single precision weight designed for routine verification and adjustment of laboratory and industrial balances, combining compact dimensions with certified accuracy for consistent measurement results. KERN calibration weight, OIML Class F1 Nominal value 50 g, tolerance 0.3 mg Polished stainless steel, Eco‑Form design Suitable for laboratory and industrial scales Certified accuracy for uncompromised measurement results The KERN 326‑06 is manufactured to OIML Class F1 tolerances, guaranteeing a declared 0.3 mg permissible error for the 50 g nominal mass. This level of conformity supports compliance with internal quality control and external accreditation requirements, reducing uncertainty in weighing tasks. The certified accuracy is particularly valuable in calibration routines where small mass deviations can propagate into process errors; selecting a weight with documented tolerance simplifies traceability and audit preparation. Where traceable measurement evidence is required, reliance on an OIML‑rated weight ensures transparent, verifiable performance. Robust form and material for laboratory use Constructed from polished stainless steel in an ergonomically optimised Eco‑Form, the weight resists corrosion, wear and surface contamination, while its finish facilitates careful handling and cleaning. The compact cylindrical footprint (18×29 mm) minimises contact area during placement and retrieval, helping to preserve the mass value over repeated use. The design supports routine maintenance and lowers lifecycle risk of surface damage; a smooth polish also reduces adsorption of particulates and oils, which can otherwise alter reading stability on sensitive balances. Streamlined calibration workflow and compatibility Integrating this calibration weight into regular verification schedules improves process efficiency: the clear nominal marking, standardised form and OIML classification enable rapid selection for specific balance ranges. For technicians and metrology teams, using a recognised single mass accelerates check procedures and reduces calibration downtime. The weight’s dimensions and class make it compatible with most laboratory and shop‑floor balances, so it can be kept in rotation for quick verification tasks, reducing the need for multiple sizes and simplifying inventory management. Practical handling guidance for sustained precision To maintain long‑term accuracy, store the weight in its protective case and avoid direct contamination; routine cleaning with a lint‑free cloth and suitable solvent is recommended if surface residues appear. When performing adjustments, place the weight centrally on the weighing pan and allow the balance to stabilise before recording values. Regular interval checks against a higher‑class reference standard will confirm continued conformity; for field recalibration or certificates, Metav Werkzeuge can advise on suitable service intervals and documentation. The combination of certified tolerance and durable finish keeps measurement uncertainty low for extended service life. Contact Metav Werkzeuge in Emmerich for availability, application advice and supply of the KERN 326‑06 calibration weight and related metrology equipment. Technical data Article number: 326 SKU: 326-06 GTIN: 4045761223691 Manufacturer: KERN Nominal mass: 50 g Mass in kg: 0.05 kg Tolerance (OIML): 0.3 mg OIML class: F1 Material: polished stainless steel Form: Eco‑Form Dimensions (cylinder): 18×29 mm Country of origin: DE Commodity code: 84239090 eClass: 32120103 FAQ What level of accuracy does this calibration weight provide? The KERN 326-06 calibration weight meets OIML Class F1 with a declared tolerance of 0.3 mg for the 50 g nominal value. Can this weight be used for both laboratory and industrial balances? Yes, the polished stainless steel construction and compact Eco‑Form make the weight suitable for routine checks on most laboratory and industrial balances. How should the weight be cleaned and stored to preserve accuracy? Clean with a lint‑free cloth and appropriate solvent if necessary, avoid finger contact, and store in a protective case to prevent contamination and surface wear. Is traceability documentation available for this weight? Traceable documentation is available for OIML‑rated weights; Metav Werkzeuge can advise on obtaining calibration certificates and recommended verification intervals for the KERN 326‑06. What are the physical dimensions and weight mass of the item? The cylindrical weight measures 18×29 mm and corresponds to a nominal mass of 50 g (0.05 kg), designed in the Eco‑Form profile for handling and stability. KERN • Germany • GTIN: 4045761223691 • SKU: 326-06
50 g Calibration Weight Three-Point Button Polished Stainless Steel OIML F1, 0.3 mg Tolerance - KERN
Benefit from the combination of OIML Class F1 accuracy and a polished stainless steel finish for reliable, repeatable calibration results; order the KERN 327-06 via Metav Werkzeuge or consult our specialists for tailored advice and calibration options. KERN 327-06 — 50 g OIML F1 polished stainless steel calibration weight The KERN 327-06 is a precision 50 g calibration weight in button form, designed for high-accuracy verification of laboratory and workshop balances. OIML class F1 precision, tolerance 0.3 mg Polished stainless steel, button shape Nominal mass 50 g for fine calibration Manufactured by KERN in Germany Accurate, repeatable results for precision weighing This calibration mass delivers OIML Class F1 performance with a nominal value of 50 g and a tolerance of 0.3 mg, making it suitable for verification of analytical and precision balances. The narrow tolerance ensures consistent measurement reproducibility and reduces uncertainty in routine checks. As a single standard weight, it is ideal for laboratories and service departments that require traceable, repeatable reference masses to maintain quality control and meet audit requirements. Robust construction that supports regular handling Made from polished stainless steel, the mass resists corrosion and surface wear while remaining easy to clean after use. The button form supports stable placement on balance pans and facilitates handling with tweezers or lifting devices, reducing contamination and operator influence. This durable design minimises drift over time, which helps preserve the calibrated value and extends useful service intervals between calibrations. Traceability and calibration guidance for compliance Originating from Germany and produced by the established manufacturer KERN, the mass supports formal quality assurance workflows. Note that the EU initial verification (EG-type approval) of weights is no longer available after 30 November 2025; therefore a DAkkS calibration is recommended for most applications to ensure traceability and acceptance in professional environments. A protective case is advised for storage and transport because the fine tolerance class benefits from secure handling and shielding against environmental influences. Practical applications and integration into workflows This single calibration weight is optimised for balance verification, instrument adjustment and routine laboratory checks where high precision is required. The compact dimensions and standard shape ease integration into existing calibration kits and procedures. When combined with documented calibration certificates and proper handling protocols, the mass supports reliable measurement chains and helps technicians demonstrate compliance with internal and external audit criteria. Contact Metav Werkzeuge in Emmerich for personalised advice on the KERN 327-06, DAkkS calibration options and suitable protective cases — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 327 SKU: 327-06 GTIN: 4045761004740 Manufacturer: KERN Material: Polished stainless steel Nominal mass: 50 g OIML class: F1 Form: Button Tolerance: 0.3 mg Origin: DE Tariff number: 84239090 Core data Nominal mass: 50 g Mass (kg): 0.05 kg Tolerance: 0.3 mg Dimensions: 18 × 29.5 mm GTIN: 4045761004740 Special features Single weight for calibration and verification Polished stainless steel surface Button form for stable placement OIML Class F1 accuracy Manufactured in Germany DAkkS calibration recommended Protective case recommended due to high accuracy FAQ What accuracy class does this calibration weight meet? The KERN 327-06 complies with OIML Class F1 and has a tolerance of 0.3 mg, suitable for precision verification tasks. Is a protective case necessary for this weight? Due to the fine tolerance of the KERN 327-06, the use of a protective case is recommended to prevent surface damage and contamination. Can this weight be used for routine balance checks in a workshop environment? Yes, the 50 g mass is suitable for routine verification and adjustment of precision and laboratory balances used in workshops and quality control labs. Is on-site verification or initial EU approval available for this weight? EU initial verification (EG-type approval) is not available after 30 November 2025; for traceability we recommend DAkkS calibration for the KERN 327-06. How should the stainless steel surface be cleaned to preserve accuracy? Clean the polished stainless steel surface of the KERN 327-06 with a soft, lint-free cloth and, if necessary, a mild solvent; avoid abrasive cleaners and handle with tweezers to prevent fingerprints. Manufacturer: KERN — Germany — contact details not provided
50 g Precision Calibration Weight Button Stainless Steel Fine-Turned, OIML F2 1 mg - KERN
Take advantage of the combination of OIML F2 accuracy, finely turned stainless steel construction and compact knob form for reliable balance verification and long-term stability. Order the calibration mass directly via Metav Werkzeuge or ask our consultants for advice and suitable storage options. KERN 337-06 — OIML F2 50 g calibration mass, finely turned stainless steel The KERN 337-06 is a knob-shaped single calibration mass designed for precision verification of laboratory and industrial balances, offering traceable nominal value and handling convenience. OIML class F2 accuracy Finely turned stainless steel finish Compact knob form 18×29.5 mm Tolerance 1 mg for precise calibration Ensure measurement accuracy with an OIML F2 mass A calibration mass in OIML F2 delivers a defined tolerance suited to routine verification of precision balances. The 50 g nominal value and 1 mg tolerance provide measurable confidence when checking sensitivity and linearity of balances used in quality control. For laboratories and workshops that require reproducible weighing results, this class offers a cost-effective way to maintain measurement integrity without stepping up to higher metrological classes. Durable material and form for stable performance Manufactured from finely turned stainless steel, the mass resists corrosion and surface damage that could affect its value over time. The knob shape and smooth finish reduce handling marks, while the mass artefact geometry supports even mass distribution and thermal stability. These material and design choices reduce the frequency of recalibration and prolong the component's useful life, which supports operational uptime and predictable maintenance cycles. Practical handling and storage benefits With compact dimensions of 18×29.5 mm and a weight of 0.05 kg, the mass is convenient to store and easy to position on balance pans that accept knob-form weights. The small footprint simplifies use on tightly spaced workbenches and in analytical cabinets. Given the precise tolerance class, a protective case is recommended to prevent contamination and mechanical damage during transport and storage, thereby preserving the certified characteristics of the artefact. Compliance and application in verification routines As a class F2 single calibration mass, the item supports routine verification and in-house checks where traceability to national standards is required. The stainless-steel construction and precise machining allow consistent repeatability during comparative tests. For processes that document traceable results, incorporating a certified mass like this into scheduled verification routines helps demonstrate adherence to quality management and calibration policies. For traceable results and suitable storage solutions, choose the KERN 337-06 from Metav Werkzeuge — contact our Emmerich team by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930 for product advice and case recommendations Technical Data Article number: 337 SKU: 337-06 GTIN: 4045761006386 Manufacturer: KERN Facts Nominal value: 50 g Tolerance (OIML): 1 mg Weight: 0.05 kg Dimensions (cylinder): 18×29.5 mm Origin: DE Special features OIML class: F2 Form: knob form Material: finely turned stainless steel HS tariff code: 84239090 Case recommended for storage and transport FAQ What balance types can be verified with this mass? This calibration mass is suitable for verification of precision laboratory and industrial balances; the KERN 337-06 (OIML class F2, 50 g) is intended for routine checks and sensitivity tests. How precise is the 50 g mass? The mass is specified to 1 mg tolerance under OIML F2, giving a defined uncertainty appropriate for many quality-control and verification tasks. Is the material corrosion resistant? Yes. The finely turned stainless steel construction minimises corrosion risk and surface changes that could affect the mass value. Should the mass be stored in a case? A protective case is recommended because the precise tolerance of the KERN 337-06 requires careful handling and protection from contamination and mechanical damage. Does this mass come with traceability information? The product is supplied as an OIML class F2 single calibration mass; for formal calibration certificates or traceability to national standards, please enquire with Metav Werkzeuge. Manufacturer: KERN, Germany — Contact via Metav Werkzeuge: info@metav-werkzeuge.com, +49 2822 7131930
50 g Precision Calibration Weight Button Stainless Steel Polished, OIML Class E2, 0.1 mg Tolerance - KERN
Combine certified OIML E2 accuracy with a polished stainless steel finish and a compact knob for intuitive handling; ideal as a reference mass for routine verifications and traceable calibrations. Order the KERN 317-06 directly via Metav Werkzeuge or consult our specialists for advice on calibration and suitable storage accessories. KERN 317-06 — 50 g OIML E2 calibration weight, polished stainless steel knob The KERN 317-06 is a precision calibration weight designed for laboratory and industrial scale verification, supplied in a knob form for convenient placement and removal. OIML E2 class with 0.1 mg tolerance Polished stainless steel for durability Nominal mass 50 g, compact knob shape Recommended storage in a protective case Certified accuracy for reliable measurement chains The certified OIML E2 classification ensures consistently low uncertainty for reference measurements. With a stated tolerance of 0.1 mg, this calibration weight supports tight verification intervals and helps to maintain measurement conformity within calibration cycles. The reference mass offers a predictable influence on instrument zero and span checks, reducing rework and ensuring production steps that rely on accurate masses proceed without interruption. Durable design that simplifies handling and maintenance Finished in polished stainless steel, the reference mass resists corrosion and surface wear, preserving its calibrated value over time. The knob form assists secure handling with tweezers or gloved fingers and reduces contact of the weighing surface, which protects the mass from transfer of oils or dirt. These design choices minimise the frequency of cleaning and re-calibration, thereby lowering indirect operational costs while maintaining measurement integrity. Integrates with calibration workflows and traceability practices This single calibration weight fits easily into standard verification procedures for balances and scales used across quality control, laboratories and production lines. Marked as a nominal 50 g reference, it is straightforward to include in documentation and calibration certificates, supporting clear traceability. When combined with proper storage and documented calibration intervals, the weight contributes to a robust measurement assurance programme. Practical supply and aftermarket considerations for workshops Delivered with SKU 317-06 and traceable identifiers, the unit supports inventory and compliance records. For high-accuracy classes such as this, a protective case is strongly recommended to maintain long-term stability; Metav offers suitable etuis and calibration services to match the required documentation level. Choosing a recognised manufacturer and a reliable supplier reduces the administrative effort associated with audit-ready measurement systems and ensures continuity of supply. Secure traceable accuracy with the KERN 317-06 from Metav Werkzeuge — contact our Emmerich team for stock, calibration options and accessory recommendations Technical data Article number: 317 SKU: 317-06 GTIN: 4045761003620 Manufacturer: KERN Origin: DE Facts Nominal mass: 50 g Mass (kg): 0.05 OIML class: E2 Tolerance (OIML): 0.1 mg Cylinder dimensions: 18×28 mm Commodity code: 84239090 ECLASS: 32120103 Special features Material: polished stainless steel Form: knob form Product category: calibration weights Product group: OIML E2 FAQ What is the stated uncertainty for this calibration weight? The tolerance for the KERN 317-06 is 0.1 mg, corresponding to its OIML E2 classification and suitable for high-precision verification tasks. Can this weight be used on analytical and precision balances? Yes, the 50 g reference mass is intended for verification of precision and analytical balances where an OIML E2 class weight is required. Is a protective case necessary for long-term stability? A protective case is recommended for the KERN 317-06 to prevent contamination and mechanical damage that could affect calibration stability. Does the weight come with a calibration certificate? Calibration options and certificates can be arranged through Metav Werkzeuge to meet traceability requirements and documentation needs. What materials and shape benefit routine handling in the workshop? The polished stainless steel finish and knob form minimise contamination risk and simplify handling during routine checks and calibrations. Manufacturer: KERN, Address: Germany, Contact: Metav Werkzeuge — info@metav-werkzeuge.com / +49 2822 7131930
50 g Precision Test Weight Compact Polished Stainless Steel, OIML E2 0.1 mg Tolerance - KERN
Take advantage of precise calibration with OIML-class accuracy and a robust stainless-steel finish; the compact design ensures easy handling in both lab and workshop environments. Order the KERN 316-06 directly via Metav Werkzeuge or consult our specialists for configuration advice. KERN 316-06 — Calibration weight, OIML class E2, 50 g, polished stainless steel The KERN 316-06 is a compact calibration weight designed for routine checks and calibration of laboratory and industrial balances where high repeatability is required. OIML class E2 accuracy Nominal mass 50 g Tolerance 0.1 mg Polished stainless steel, compact form Consistent results through recognised accuracy The calibration weight is manufactured for stability and repeatable measurements. As an OIML class E2 instrument with a tolerance of 0.1 mg, this weight offers the precision required for routine verification and calibration of analytical and precision balances. The clearly defined class and numerical tolerance provide a verifiable basis for traceable measurement procedures, helping to reduce drift-related errors and ensuring measurement consistency across production and laboratory workflows. Robust finish and compact handling for everyday use A polished stainless steel surface offers corrosion resistance and straightforward cleaning, making the weight suitable for demanding environments. The compact form and precise machining ensure secure placement on pans and easy manoeuvring during calibration routines. These design choices minimise handling time and the risk of contamination, while maintaining the mechanical stability needed for repeatable results over long service intervals. Practical recommendations to protect accuracy Due to the high-precision classification and fine tolerance, careful storage and handling extend service life and maintain metrological integrity. A protective case is recommended for transportation and storage to avoid surface damage that could alter mass. When used as intended, this single calibration weight supports reliable checks and spot calibrations, contributing to controlled measurement processes and documented quality assurance. For calibration tasks demanding OIML E2 performance, rely on the KERN 316-06 and contact Metav Werkzeuge in Emmerich for product advice and ordering at info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 316 SKU: 316-06 GTIN: 4045761094888 Manufacturer: KERN Country of origin: DE Tariff code: 84239090 Facts Nominal mass: 50 g Mass in kg: 0.05 kg Tolerance (OIML): 0.1 mg Dimensions (cylinder): 18×26.2 mm Eclass: 32120103 Special features Polished stainless steel Compact form OIML class E2 Recommended: protective case for transport and storage FAQ What level of accuracy does this weight provide? The KERN 316-06 is specified as OIML class E2 with a tolerance of 0.1 mg, making it suitable for high-precision verification tasks and routine calibrations. Is this weight suitable for laboratory and workshop use? Yes, the polished stainless-steel finish and compact form factor allow the KERN 316-06 to be used in both controlled laboratory settings and workshop environments where careful handling is observed. Should the weight be stored in a case? A protective case is recommended for the KERN 316-06 because the high accuracy requires protection from contamination and mechanical damage that could affect mass. Can this weight be used to verify analytical balances? Given its OIML class E2 specification and 50 g nominal mass, the KERN 316-06 is appropriate for checks on analytical and precision balances within the scope of E2-class applications. How should the weight be maintained to preserve accuracy? Handle the KERN 316-06 with cleaned, lint-free gloves or tweezers, store it in a protective case, and clean the polished surface gently with a soft cloth to avoid altering the mass. Metav Werkzeuge · Emmerich am Rhein · info@metav-werkzeuge.com · +49 2822 7131930
50 g Slotted Test Weight M1, Stainless Steel Turned, 3 mg Tolerance - KERN
Take advantage of OIML M1 accuracy and a fine‑turned stainless steel construction for dependable, repeatable calibration results; the 50 g nominal mass with ±3 mg tolerance supports precise balance adjustment and routine verification. Order the slotted weight directly via Metav Werkzeuge or ask our consultants if required. KERN 347-065 Slotted test weight — OIML M1, 50 g The KERN 347-065 is a Type A slotted test weight for calibration and adjustment of precision and industrial balances in laboratories and workshops. OIML M1 certified mass Nominal mass 50 g Fine‑turned stainless steel Type A slotted design Precise conformity for reliable measurement results The slotted test mass delivers OIML M1 conformity, providing a nominal mass of 50 g with a tolerance of ±3 mg. This specification indicates suitability for calibration tasks where mid‑range accuracy is required; it reduces measurement uncertainty when used for adjustment or verification of balances. The declared tolerance supports documented conformity and traceable results, which is essential for compliance in regulated environments and quality management systems. Using a certified mass helps to maintain consistent production checks and laboratory measurements. Robust construction that eases handling and storage Manufactured from fine‑turned stainless steel, the design balances durability with a machinist‑grade finish that resists corrosion and surface wear. The Type A slotted form permits secure mounting on carrier rods and stacking in standard holders, while the compact cylinder dimensions of 28 × 12 mm ensure compatibility with common slotted weight systems. These material and form‑factor choices support repetitive handling during routine calibrations without detrimental wear to the reference mass. Practical application in calibration workflows Intended for routine calibration and quick adjustments, this slotted mass integrates into standard balance maintenance procedures and calibration benches. The slotted design simplifies placement on balances and carrier bars, speeding up adjustment cycles and reducing downtime. The combination of certification and mechanical compatibility makes it a pragmatic choice for laboratories, service technicians and industrial weighing stations that require efficient, repeatable calibration runs. Care, traceability and origin Simple maintenance—clean with a soft, lint‑free cloth—keeps the reference mass within specification between recalibrations. Periodic verification against a higher‑accuracy standard is recommended to preserve traceability in the measurement chain. The product is manufactured in Germany, reflecting attention to machining tolerances and quality control during production, which contributes to long service life and dependable performance. Secure precise, traceable calibration with the KERN 347-065 — contact Metav Werkzeuge in Emmerich for tailored advice and to place an order by email at info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical data Article number: 347 SKU: 347-065 GTIN: 4045761256309 Manufacturer: KERN Origin: DE HS code: 84239090 OIML class: M1 Facts Nominal mass: 50 g Mass in kg: 0.05 kg Tolerance: ±3 mg Cylinder dimensions: 28 × 12 mm Special features Material: fine‑turned stainless steel Slotted weight type: Type A Compatible with all Type A slotted carriers Precision turned finish FAQ What accuracy class does this weight have? The KERN 347-065 is certified to OIML M1 and offers a tolerance of ±3 mg for the 50 g nominal mass. Is the slotted design compatible with standard carriers? Yes, the Type A slotted design is compatible with all standard Type A slotted carriers and carrier rods. What material is the test mass made from? The reference mass is made from fine‑turned stainless steel, providing corrosion resistance and a smooth finish. How often should the weight be recalibrated? Recalibration intervals depend on frequency of use and traceability requirements; routine verification against a higher‑accuracy standard is advised for continued compliance with measurement systems when using the KERN 347-065. Where is the product manufactured? The weight is manufactured in Germany, reflecting controlled machining and quality processes. KERN — Germany; Seller: Metav Werkzeuge, Emmerich am Rhein; Contact: info@metav-werkzeuge.com, +49 2822 7131930
50 g Test Weight Button Stainless Steel Fine-Turned OIML Class M2 - KERN
Take advantage of certified accuracy and a corrosion‑resistant, finely turned stainless‑steel knob design to keep routine calibrations quick and reliable; order the test weight directly via Metav Werkzeuge or ask our consultants for technical details. KERN 357-06 test weight — 50 g, OIML class M2, finely turned stainless steel knob The KERN 357-06 is a single 50 g OIML class M2 calibration test weight in a knob form, designed for precise routine checks and straightforward handling in laboratories and workshops. OIML class M2 certified accuracy 50 g nominal mass for verification Finely turned stainless-steel knob form Suitable for laboratory and workshop use Quick, standards‑aligned checks that save time and effort The certified OIML class M2 accuracy and nominal 50 g mass make this compact test weight ideal for rapid verification of precision balances and scales. By using a mass that meets recognised metrological classes, calibration intervals can be executed with confidence, reducing measurement uncertainty and preventing production delays. The measured 0.05 kg mass supports repeatable results, which in turn shortens downtime associated with instrument checks and keeps quality control processes efficient. Robust handling with low maintenance for everyday use A finely turned stainless steel construction provides both corrosion resistance and a smooth surface finish, which minimises contamination and wear during repeated handling. The knob form supports safe, ergonomic placement on a balance pan, lowering the risk of handling errors and improving repeatability of the check procedure. This durable design reduces the need for frequent replacement and supports long‑term cost efficiency in the calibration workflow. Seamless integration into quality systems and traceability As a single calibration weight, the unit complements existing sets and is straightforward to store, label and track within a quality management system. The compact form factor simplifies handling during routine verification and the clear OIML class M2 designation aids documentation for audits. For traceability and inventory control, reference the manufacturer and article information when recording calibration events to maintain compliance and support audit trails. For purchase enquiries or tailored advice on calibration equipment, contact Metav Werkzeuge in Emmerich by email at info@metav-werkzeuge.com, by phone at +49 2822 7131930 or via WhatsApp at +49 170 2837271 — our consultants will advise on suitability and supply. Technical data Article number: 357-06 Manufacturer: KERN Nominal mass: 50 g Mass: 0.05 kg OIML class: M2 Data Nominal mass: 50 g Mass in kg: 0.05 kg OIML class: M2 Special features Finely turned stainless-steel Knob form Single weight for calibration FAQ Is this weight suitable for routine balance verification? The KERN 357-06 test weight (OIML class M2) is designed for routine verification of precision balances and is suitable for regular control checks in laboratories and workshops. What material is the weight made from and why does it matter? The unit is made from finely turned stainless steel, which provides corrosion resistance and a smooth surface to reduce contamination and wear during repeated use. Can this weight be used alongside higher‑class calibration sets? Yes, the 50 g single weight serves as a complement to larger calibration sets and is useful for spot checks and verification tasks within a documented quality workflow. How should the weight be handled and stored to maintain accuracy? Handle the knob form carefully with clean hands or gloves, store in a dry, dust‑free case and record use in calibration logs to preserve accuracy and traceability. Is the weight suitable for workshop environments as well as laboratories? The robust stainless‑steel construction and ergonomic knob form make it suitable for both laboratory and workshop applications where routine checks of scales are required. Manufacturer: KERN — contact via Metav Werkzeuge: info@metav-werkzeuge.com · +49 2822 7131930
50 kg Calibration Mass Block OIML Class M2, Painted Cast Iron, 8 g Tolerance - KERN
Take advantage of precise verification and robust construction with reliable OIML M2 accuracy and a 50 kg nominal mass for stable, repeatable scale calibration; order the block weight directly via Metav Werkzeuge or ask our consultants for application advice. KERN 356-89 block calibration weight — 50 kg, OIML M2 KERN 356-89 is a compact block calibration weight designed for verification and adjustment of industrial and laboratory scales where OIML M2 class accuracy is required. OIML M2 certified accuracy Heavy block design for stable placement Painted cast iron for durable protection Tolerance ±8 g for precise verification Reliable accuracy for routine calibrations The solid 50 kg block provides a straightforward reference mass for routine verification tasks. As an OIML M2 weight with a specified tolerance of 8 g, it supplies the measurable certainty needed to check and set larger scales and balances. The defined tolerance value describes the maximum permissible deviation and allows quick assessment of a scale’s performance without complex calculations. For workshops and quality departments seeking reproducible results, this single-mass solution reduces handling complexity and time spent on multi-weight procedures. Robust build for workshop environments Manufactured from painted cast iron, the block is built to withstand regular use in industrial settings. The protective coating reduces surface corrosion and makes the mass easier to clean after contact with oils or residues commonly found in workshops. The block form factor ensures stable seating on scale pans, reducing rocking and measurement error compared with slender or hooked weights. This mechanical stability translates into fewer repeat readings and faster verification cycles on the shop floor. Clear specifications that simplify compliance planning The product’s classification and measurable parameters enable straightforward documentation. With explicit data such as OIML M2 classification, 50 kg nominal mass and tolerance 8 g, planning calibration intervals and maintaining traceability records becomes easier. The manufacturer name KERN and the SKU provide unambiguous identification for procurement and inventory systems. These objective facts help integrate the weight into an existing quality-management process without guesswork. Practical handling and storage considerations The block design minimises tipping and allows simple placement by hand or with appropriate lifting aids where needed. Its compact footprint supports placement on larger platform scales and dedicated verification surfaces alike. When arranging storage, the painted finish helps maintain the reference surface condition; nevertheless, storing weights in a dry, vibration-free area will preserve long-term accuracy. For users requiring guidance on correct handling or storage best practice, technical advice is available to ensure measurement integrity. Contact Metav Werkzeuge today for expert advice or to order the KERN 356-89 block calibration weight directly from our Emmerich facility — email info@metav-werkzeuge.com or call +49 2822 7131930 for tailored support Technical data Article number: 356 SKU: 356-89 GTIN: 4045761248304 Manufacturer: KERN Origin country: CN Tariff number: 84239090 Facts Nominal mass: 50 kg OIML class: M2 Tolerance (OIML): 8 g Materials & features Material: painted cast iron Shape: block weight Product group: single weight, OIML M2 FAQ What is the intended use of this weight? The KERN 356-89 calibration weight is intended for verification and adjustment of industrial and laboratory scales where an OIML M2 class reference mass is suitable. How precise is the block weight? The block has an OIML M2 classification with a tolerance of 8 g for the 50 kg nominal mass, providing a clear limit for acceptable deviation during verification. Is the material suitable for workshop environments? Yes, the painted cast iron construction offers durability and corrosion resistance appropriate for workshop and industrial use. How should the weight be stored to maintain accuracy? Store the weight in a dry, low-vibration area and avoid contact with corrosive substances; the painted finish helps protect the surface but controlled storage preserves long-term accuracy. Can this weight be used for legal trade calibrations? Use of the KERN 356-89 depends on local legal-metrology requirements; the weight’s OIML M2 classification serves as an objective specification for verification planning. Metav Werkzeuge, Emmerich am Rhein — Email: info@metav-werkzeuge.com — Phone: +49 2822 7131930
50 kg Calibration Weight Block OIML Class M1, Painted Cast Iron - KERN
Take advantage of the combination of OIML M1 accuracy, 50 kg nominal mass and a robust lacquered cast iron block for reliable, repeatable scale verification; order the block weight directly via Metav Werkzeuge or consult our specialists if further advice is needed. KERN 346-89 Block Weight (OIML M1, 50 kg) The Block Weight 346-89 is a single calibration mass designed for routine verification of industrial and laboratory scales, presented as a compact block for stable placement and easy handling Single calibration weight, OIML M1 Nominal mass 50 kg Block design for stable placement Lacquered cast iron construction Precise verification suitable for industrial checks The OIML M1 classification describes the permissible tolerance and geometrical requirements for this class of calibration masses, making the item a trustworthy reference for routine verification and internal checks. With a 50 kg nominal mass, the unit serves as a mid‑range reference capable of reducing measurement uncertainty in regular calibration cycles. Explaining the standard in simple terms helps workshops and service departments understand that class M1 balances accuracy and cost, providing a pragmatic solution where very high‑precision reference standards are not required. Durable block form that withstands workshop conditions The block geometry delivers a low centre of gravity and a broad contact surface, which improves stability on weighing platters and minimises the risk of tipping during handling. Constructed from lacquered cast iron, the mass resists abrasion and humidity while maintaining dimensional stability under normal working conditions. The lacquered finish reduces corrosion and simplifies cleaning, which lowers maintenance effort and extends the service life of the reference mass in everyday metrology tasks. Practical use and compliance considerations As a single 50 kg reference, the unit is intended for scale verification, quality control and calibration checks within production environments and maintenance workshops. The simple block design supports straightforward storage and handling routines. Where documented traceability or an accredited calibration certificate is required, pairing the weight with a calibration laboratory is recommended to supply the necessary uncertainty statements and formal documentation for compliance purposes. For tailored supply or technical advice on the KERN 346-89 OIML M1 50 kg block, contact Metav Werkzeuge in Emmerich at info@metav-werkzeuge.com or +49 2822 7131930 Technical Data Article number: T346-8-A SKU: 346-89 Manufacturer: KERN GTIN: 4045761241664 Origin: CN Facts Nominal mass: 50 kg Weight (kg): 50 Tariff number: 84239090 Materials & Special features Material: lacquered cast iron Design: block weight Class: OIML M1 Category: Calibration weights FAQ Is this weight suitable for routine scale verification? Yes. The KERN 346-89 is an OIML M1 class single calibration mass intended for routine verification and internal calibration tasks where a 50 kg reference is required. Can the block be used in humid or workshop environments? The lacquered cast iron construction of the 346-89 provides enhanced resistance to corrosion and wear, making it appropriate for typical workshop conditions while still preserving dimensional stability. Does the weight include a calibration certificate? The product data does not specify a certificate; when a documented calibration is needed, the KERN 346-89 should be submitted to an accredited laboratory to obtain traceable measurement uncertainty and formal certification. What are the handling and storage recommendations? Store the block weight on a stable, flat surface and avoid impacts. The compact block shape of the 346-89 aids safe placement and reduces tipping risk during handling and transport. Is the mass suitable for trade or legal metrology? OIML M1 denotes a defined tolerance class; whether it meets legal requirements depends on local regulations and the specific application. Use the KERN 346-89 for verification and internal quality control and consult an accredited body for legal metrology approval if required. Metav Werkzeuge, Emmerich am Rhein, info@metav-werkzeuge.com, +49 2822 7131930
50 kg Calibration Weight Block Polished Stainless Steel OIML F1, 250 mg Tolerance - KERN
Take advantage of the combination of OIML F1 accuracy, a robust 50 kg nominal mass and a polished stainless-steel finish for reliable calibration results; order the KERN 326-39 via Metav Werkzeuge or consult our specialists for application-specific advice. KERN 326-39 Block Calibration Weight — 50 kg, OIML F1 The KERN 326-39 is a knob-shaped block calibration weight designed for laboratory and industrial scale verification and routine calibrations OIML class F1 accuracy Nominal mass 50 kg Polished stainless steel finish Knob-shaped block for safe handling Ensure measurement confidence with traceable class F1 accuracy The OIML F1 classification delivers a clearly defined tolerance of 250 mg for the 50 kg nominal mass, providing a reliable basis for routine verification and internal quality checks. This level of precision is suitable for calibration of industrial and laboratory scales where reproducibility and documented measurement uncertainty are required. By referencing the stated tolerance and international OIML standards, maintenance and calibration plans can be aligned with regulatory and audit requirements, reducing uncertainty in process control. Robust construction for durable, hygienic performance Manufactured in polished stainless steel, the block design combines mass stability with corrosion resistance, simplifying cleaning and handling in demanding workshop or lab environments. The knob-shaped profile aids secure placement and removal from weighing pans while the solid block form minimises deformation risk. The material choice contributes to long-term dimensional stability and keeps surface contamination to a minimum, which supports repeatable measurement results and reduces downtime for maintenance. Calibration pathways and regulatory note for verification Following the change in verification rules, initial EC verification for calibration weights is no longer possible after 30 November 2025; for most applications a DAkkS calibration is recommended to ensure traceability and acceptance in conformity assessments. Metav Werkzeuge can advise on DAkkS procedures and documentation to ensure the weight integrates seamlessly into existing traceability chains. Clear labelling, traceable calibration certificates and documented measurement uncertainty help preserve compliance and support internal quality assurance. Practical procurement and workshop integration The compact block format and clearly defined specifications simplify stock management and selection for service workshops, calibration laboratories and production facilities. With a unique SKU and GTIN, inventory systems and procurement processes can reference the exact item for reorder and certification tracking. A protective case is recommended for transport and storage of this high-precision mass to preserve surface condition and measurement integrity during handling and transit. Contact Metav Werkzeuge in Emmerich for DAkkS calibration advice and to arrange supply and a protective case for the KERN 326-39; email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data SKU: 326-39 GTIN: 4045761232846 Manufacturer: KERN Category: Calibration weights Origin: Germany Core specifications Nominal mass: 50 kg Tolerance: 250 mg OIML class: F1 HS code: 84239090 Materials & features Material: Polished stainless steel Shape: Knob-shaped block Recommendation: Protective case recommended Note: EC initial verification not possible after 30.11.2025; DAkkS calibration recommended FAQ What level of accuracy does this calibration weight offer? The KERN 326-39 is certified to OIML class F1 with a tolerance of 250 mg for a 50 kg nominal mass, suitable for many laboratory and industrial calibration tasks. Is the material suitable for humid or workshop environments? Yes, the block is made from polished stainless steel, offering corrosion resistance and easy cleaning, which helps maintain measurement stability in workshop or laboratory conditions. Can the weight be delivered with traceable calibration? A DAkkS calibration is recommended and can be provided; Metav Werkzeuge can advise on the appropriate certification for traceability and audit purposes for the KERN 326-39. Is there a recommended accessory to protect the weight during transport? A protective case is recommended for this 50 kg calibration weight to preserve the polished surface and prevent handling damage during storage and transit. Will the KERN 326-39 remain valid for initial EC verification? Initial EC verification for calibration weights is no longer possible after 30 November 2025; for continued conformity Metav recommends DAkkS calibration for most applications. Metav Werkzeuge — Emmerich am Rhein, Germany — info@metav-werkzeuge.com — +49 2822 7131930 — WhatsApp: +49 170 2837271
Ensure measurement reliability with certified test weights
Test weights are defined mass artefacts used to verify, adjust and document the performance of scales across production, laboratory and quality assurance environments. They provide the objective reference needed to confirm accuracy, repeatability and process reliability where documented results matter.
How test weights work and where they matter
Test weights serve as traceable references with fixed nominal values — for example 1 g, 100 g, 1 kg or 20 kg — and are manufactured to specific accuracy classes so that permitted deviations are known and comparable. In practice they are used to check a scale’s reading at one or several points within its range, to distinguish between calibration (checking and documenting deviation) and adjustment (setting the scale to read correctly). Typical situations include routine production checks, audit-prepared quality control, laboratory validation and fault-finding when instability, vibration or environmental factors affect readings.
Immediate performance gains for production and quality assurance
- increase measurement confidence by using weights matched to the application and scale resolution
- reduce downtime and troubleshooting time through systematic multi-point checks (lower, mid, upper range)
- protect process validity by choosing the correct accuracy class: E1, E2, F1, F2, M1, M2, M3
- limit handling-related error: use tweezers for small weights and clean gloves for larger items
- extend usable lifetime through disciplined storage in protective cases and regular control or recalibration
Why KERN & Sohn is the premium choice and how Metav supports you
KERN & Sohn brings a long heritage in precision weighing and measuring technology, offering extensive product ranges and services such as DAkkS-accredited calibration. Metav supplies these solutions with a practical focus: democratising precision by making traceable measuring tools available to workshops and specialist buyers across Europe. With over 48,000 customers, more than 250,000 products and a logistics and quality filter based in Emmerich, Metav combines specialist selection with dependable supply for industry and trade.
Technical data at a glance
- nominal values: 1 g, 100 g, 1 kg, 20 kg
- accuracy classes: E1, E2, F1, F2, M1, M2, M3
- typical applications: quality assurance; production; laboratory
- handling: tweezers for small weights; clean gloves for larger weights
- storage: protective case; dust-free environment
- check routine: lower, middle, upper range
- purpose: calibration (check & document); adjustment (set scale)
FAQ
What exactly are test weights?
Test weights are defined mass artefacts with fixed nominal values that are used to check, adjust or document scale performance within quality assurance and calibration workflows.
Which accuracy classes are available and when should I use them?
Accuracy classes range from E1/E2 for the highest demands, through F1/F2 for precise everyday applications, to M1–M3 for robust industrial or platform scales. Select the class that matches the required measurement uncertainty and the operating environment.
How often should I check my scale with test weights?
Frequency depends on the criticality of the process: critical operations often require daily or per-shift checks, while less critical applications may use weekly or monthly intervals; always check after location changes or suspect readings.
Why must test weights not be touched with bare hands?
Skin oils and moisture alter surface mass and can introduce measurable errors, especially for small nominal values. Use tweezers or clean gloves to maintain traceability and reliability.
What is the practical difference between calibration and adjustment when using test weights?
Calibration documents how far a scale deviates from the nominal value; adjustment actively corrects the scale to bring it back into tolerance. Both processes make use of test weights but serve different quality objectives.
Metav and KERN & Sohn provide the products, documentation and calibration pathways to integrate test weights into routine quality assurance — ensuring your measurements remain verifiable, repeatable and audit-ready.
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