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.
1mg–500mg Plastic Case For Single Weights, For Classes E1–M2, Button/Compact Design - KERN
Benefit from robust plastic construction, compatibility with single nominal values 1 mg–500 mg and secure organisation for calibration weights of classes E1–M2, ensuring reliable storage and easy handling. Order the case directly via Metav Werkzeuge or ask our consultants if needed. KERN 347-009-400 Plastic Case for Single Calibration Weights – for 1 mg–500 mg, E1–M2 The KERN 347-009-400 is a compact plastic case designed to protect and organise single calibration weights for laboratories, service engineers and workshop calibration tasks. Compact plastic case for calibration weights Fits single weights from 1 mg to 500 mg Compatible with classes E1 to M2 Lightweight at approx. 0.02 kg Protects precision weights during storage and transport The case provides secure storage for individual calibration weights, reducing the risk of contamination and handling damage that can alter mass values. The internal layout is adapted for button/compact designs commonly used in calibration sets; this keeps each weight separated and stable during transport. By using a dedicated enclosure made from durable plastic, routine handling becomes more predictable and safer for sensitive measurement artefacts. Ensures compatibility with recognised accuracy classes Designed for nominal values from 1 mg–500 mg, the enclosure supports weights used across common accuracy classes E1–M2, which makes it suitable for laboratory checks and field calibration. For readers less familiar with classes: E1 and M2 denote standardised tolerance ranges used in legal and laboratory metrology; storing weights in the correct case helps maintain traceability and reduces the chance of cross-contamination that could compromise conformity checks. Lightweight, compact design for efficient workflow At roughly 0.02 kg, the case contributes negligible additional mass while offering a compact footprint for bench or toolbox storage. The plastic construction balances low weight with sufficient rigidity to protect contents, enabling technicians to carry sets between site visits without bulky packaging. The space-saving profile also assists in organised inventory management, simplifying quick selection and return of individual weights during calibration routines. Practical benefits for workshops and calibration services For calibration laboratories, service teams and quality departments, a purpose-built case streamlines handling and reduces downtime caused by misplaced or contaminated weights. The product supports better operational consistency by keeping single calibration weights in order and immediately accessible, which translates into fewer interruptions during measurement tasks and a smoother calibration workflow. Contact Metav Werkzeuge for delivery from Emmerich, tailored advice or technical clarification via info@metav-werkzeuge.com or call +49 2822 7131930 Technical Data Article number: 347 SKU: 347-009-400 GTIN: 4045761008625 Manufacturer: KERN Facts Weight: 0.02 kg Nominal values: 1 mg–500 mg HS code: 84239090 Special features Material: Plastic For: single calibration weights (button/compact) Class compatibility: E1–M2 Country of origin: DE FAQ Which nominal values fit in this case? The KERN 347-009-400 accommodates single weights with nominal values from 1 mg to 500 mg. Is the case suitable for weights with button or compact form? Yes, the enclosure is intended for button/compact designs and keeps each single weight separated for safe storage. Which accuracy classes are compatible with the case? The case is compatible with weights in accuracy classes E1 to M2 and is suitable for laboratory and workshop use. What material is the case made from and how heavy is it? The case is constructed from plastic and weighs approximately 0.02 kg, offering a lightweight yet protective solution. Manufacturer: KERN, Address: Germany, Contact: not specified
1mg–5kg Aluminium-Protected Weight Case for Standard Weight Sets, E1–M1 - KERN
Take advantage of the combination of robust Aluminium protection, wide compatibility for calibration classes E1–M1, and practical portability for a reliable calibration workflow; order the case directly via Metav Werkzeuge or consult our specialists if additional technical details are required. Aluminium-protected Case 313-080-600 — Protective case for standard calibration weight sets, aluminium construction (KERN) The Aluminium-protected Case 313-080-600 is a purpose-built transport and storage solution for standard calibration weight sets, designed to keep precision masses secure during handling and transit in calibration and metrology environments. Aluminium-protected housing for durable transport Compatible with weight sets 1 mg – 5 kg Suitable for calibration classes E1 to M1 Maintain calibration integrity with robust protection The hard aluminium shell offers mechanical resilience that reduces the risk of shocks and deformation during transport and storage, helping to preserve the calibration condition of precision weights. Intended for nominal values from 1 mg to 5 kg, this case is compatible with the common range of laboratory and laboratory-class weights, including both high-precision and routine sets. By limiting external influence and contamination, the protective enclosure contributes to longer intervals between recalibrations and supports consistent measurement results. Practical portability that balances strength and handling Weighing 3.7 kg, the lightweight metal construction of the case provides a balance between sturdy protection and manageable handling for workshop and calibration technicians. The compact format is tailored to accommodate button/compact weight formats commonly used in laboratories and service operations, enabling efficient storage and a clearly defined place for each mass. The robust design from KERN allows secure movement of sets between workstations or to off-site calibration facilities without compromising the integrity of the instruments inside. Supports traceable workflows and wide class compatibility Designed for weights in classes E1 through M1, the case covers the spectrum from highest-accuracy reference masses to standard working weights used in routine verification. This compatibility simplifies inventory decisions and reduces the need for multiple specialised housings. The clear association with calibration classes promotes a structured approach to traceability and documentation in quality-controlled environments, ensuring that reference masses remain identifiable and protected throughout handling and storage cycles. The designation 313-080-600 identifies this model for procurement and inventory purposes. For secure storage and transport of precision weights, choose the KERN aluminium-protected case 313-080-600 and contact Metav Werkzeuge for ordering or tailored advice at info@metav-werkzeuge.com or by phone on +49 2822 7131930. Technical data Article number: 313-080-600 Manufacturer: KERN SKU: 313-080-600 Material: Aluminium Facts Compatible nominal range: 1 mg – 5 kg Calibration classes: E1 – M1 Case weight: 3.7 kg Special features Suitable for button/compact weight format Protected housing for weight sets Origin: CN Customs tariff number: 84239090 FAQ What weight ranges are compatible with this case? The case is designed for standard calibration weights with nominal values from 1 mg to 5 kg, making it suitable for a broad spectrum of laboratory and workshop masses. Which calibration classes does the case support? The aluminium-protected case accommodates weights in calibration classes E1 through M1, covering high-precision reference masses and standard working weights. Is this model suitable for button or compact weights? Yes, the design is intended to house button/compact weight formats commonly used in calibration sets and laboratory practice. Who manufactures the case and how is it identified? The case is manufactured by KERN and is identified by the model number 313-080-600 in technical documentation and ordering. Manufacturer: KERN — Origin: CN — Contact: not provided
2 g Aluminium-Protected Case For Single Weights Padded, E1–M3 - KERN
Take advantage of robust protection, padded interior and compact organisation to keep single 2 g calibration weights ready for dependable use; order the case directly via Metav Werkzeuge or consult our specialists for specification checks and delivery from Emmerich. Aluminium-protected Case for Individual Weights 2 g (E1–M3) – KERN The Aluminium-protected Case is a compact, padded storage solution for single 2 g calibration weights, designed for secure transport and safe storage in calibration and workshop environments. Padded interior for secure transport Aluminium shell for robust protection Suitable for 2 g single weights (E1–M3) Compatible with button/compact format Robust protection extends service life and simplifies handling The aluminium shell combined with a padded interior provides mechanical protection that reduces the risk of dents or contamination during storage and transport. For metrology and calibration environments, this physical protection translates directly into longer maintenance intervals and fewer unscheduled recalibrations. The compact protective container keeps individual weights stable within the case, preventing contact wear and preserving the mass value declared for 2 g test items. This reduces downtime in production and measurement routines and supports consistent measurement results over time. Clear classification and safe storage for routine use Designed for single weights in classes E1–M3, the case organises sensitive items according to their legal-metrological classification, so the status of each weight is evident at a glance. The internal layout fits the button/compact form factor commonly used in laboratory and shop-floor calibration sets, so items remain seated and protected. By keeping calibrated masses in a purpose-built enclosure, handling is simplified during audits or transfer between weighing instruments, thereby supporting efficient workflows and traceable measurement practice. Compact logistics that support accuracy and compliance Weighing equipment and its accessories must be practical for everyday use: the slim, lightweight case (approx. 0.18 kg) is easy to store on a bench or in a transport crate without adding bulk. The robust enclosure reduces environmental exposure and limits the need for frequent re-cleaning of weights, helping to maintain compliance with calibration intervals. For organisations that manage sets of single masses, the case aids inventory control and reduces the risk of damage during movement between quality-control points. A reliable partner for precision equipment procurement Sourcing measuring accessories from an experienced supplier lowers procurement complexity. Metav Werkzeuge combines wide availability with quality filtering from Emmerich, enabling workshops and laboratories to centralise their metrology purchases and rely on consistent product standards. The combination of a durable aluminium housing and a cushioned interior makes this storage solution a practical addition to calibration kits and service carts, supporting long-term value in measurement chains. Contact Metav Werkzeuge for ordering or technical clarification on the KERN aluminium-protected case and benefit from localised, reliable supply from Emmerich Technical data Article number: 317-020-600 Manufacturer: KERN GTIN: 4045761222632 Origin: CN Facts Weight (approx.): 0.18 kg Suitable for nominal value: 2 g Weight classes: E1–M3 Tariff number: 84239090 eClass: 21100103 Special features Material: aluminium Interior: padded Designed for: single weights, button/compact form Use case: storage and transport of calibration weights FAQ What size and weight classes does the case accept? The case is sized for individual 2 g weights and is suitable for weights classified E1–M3, accommodating the common button/compact format used in calibration sets. Is the interior protected against impacts and contamination? Yes, the internal padding provides impact protection and reduces direct contact between weights, helping to limit surface contamination and preserve the declared mass values. Can the case be used for transport between sites? The aluminium shell and cushioned interior are designed for secure short- to medium-distance transport, keeping single calibration weights stable during transfer. Which manufacturer supplies this case and how is quality ensured? The product is supplied by KERN and is intended as a protective storage solution for calibration weights; Metav Werkzeuge applies quality filtering and distribution from its Emmerich hub. KERN, Origin: China, Contact: not provided
2 g Calibration Weight Button Polished Stainless Steel OIML F1, 0.12 mg Tolerance - KERN
Die Kombination aus OIML‑Klasse F1, einem Nennwert von 2 g und poliertem Edelstahl gewährleistet zuverlässige Kalibrierungsergebnisse für Labor‑ und Produktionswaagen; bestellen Sie das Gewicht direkt über Metav Werkzeuge oder kontaktieren Sie unsere Beratung für Kalibrier‑ und Etui‑Optionen. KERN 327-02 — Calibration weight, 2 g, OIML F1, polished stainless steel The KERN 327-02 is a button‑shaped calibration weight designed for precise calibration and verification of analytical and high‑precision balances in laboratories and quality control environments. OIML class F1 accuracy 2 g nominal value Polished stainless steel finish Button shape for easy handling High accuracy for traceable measurement assurance The weight meets OIML F1 specifications and a declared tolerance of 0.12 mg, delivering the accuracy required for routine calibration tasks and internal quality checks. As an OIML‑rated calibration mass, it supports traceability chains and helps maintain measurement conformity across production lines. The declared tolerance should be interpreted in the context of calibration and balance capacity to ensure suitability for the intended verification routine. Durable design that simplifies handling and storage Manufactured from polished stainless steel, the mass resists corrosion and surface contamination, which reduces drift between calibrations and extends service life. Its button (knob) form and compact cylinder size (6×11 mm) facilitate handling with tweezers or a small lifting device, improving operational safety and repeatability during serial calibrations. A protective case is recommended to avoid damage and preserve accuracy during storage and transport. Compliance guidance and calibration options Note that initial EC verification of calibration weights will not be available after 30 November 2025; for most applications a DAkkS calibration is recommended as an equivalent, traceable service. Selecting DAkkS calibration at the time of purchase or thereafter ensures documented compliance and simplifies audits. The mass is supplied as a single calibration weight suitable for laboratories, inspection departments and workshop metrology. For traceable precision and tailored calibration services from Metav Werkzeuge, request the KERN 327-02 with DAkkS calibration and the recommended protective case via info@metav-werkzeuge.com or by phone; our Emmerich team will advise on suitability and logistics. Technical data Article number: 327 SKU: 327-02 GTIN: 4045761004696 Manufacturer: KERN Product type: Calibration weight (single weight) Facts Nominal value: 2 g Tolerance (OIML): 0.12 mg Dimensions (cylindrical): 6×11 mm OIML class: F1 Special features Material: polished stainless steel Form: button (knob) shape Origin: Germany (DE) Tariff code: 84239090 Recommendation: Protective case (etui) advised Calibration note: DAkkS calibration recommended; EC initial verification not possible after 30.11.2025 FAQ What level of accuracy does this weight provide? The KERN 327-02 delivers OIML F1 accuracy with a declared tolerance of 0.12 mg, suitable for calibration and verification of analytical and high‑precision balances. Is a protective case necessary for this calibration mass? A protective case is recommended for the 2 g weight to prevent surface damage and contamination; Metav Werkzeuge offers suitable etuis. Can the weight be supplied with an accredited calibration certificate? Yes, DAkkS calibration is recommended and can be arranged for the KERN 327-02 to provide traceable documentation for audits. Manufacturer: KERN — Country of origin: Germany. For ordering and further technical queries, contact Metav Werkzeuge: info@metav-werkzeuge.com | Tel: +49 2822 7131930 | WhatsApp: +49 170 2837271
2 g Calibration Weight Button Polished Stainless Steel, OIML E1 Tolerance 0.012 mg - KERN
Take advantage of the combination of laboratory-grade OIML E1 accuracy, a compact button form and a polished stainless steel finish for dependable scale verification. Order the single calibration weight directly via Metav Werkzeuge or ask our consultants for tailored advice. KERN 307-02 — 2 g OIML E1 calibration weight, polished stainless steel A KERN 307-02 single calibration weight in button form designed for precise verification of laboratory and industrial weighing instruments OIML class E1 precision Nominal mass 2 g Polished stainless steel button shape Reduce measurement uncertainty with certified precision The OIML E1 classification ensures exceptionally low permissible error, with a stated tolerance of 0.012 mg, which directly reduces measurement uncertainty in high-precision environments. This level of accuracy supports traceable adjustments and improves repeatability when verifying analytical balances and high-resolution scales. Using a reference weight with such a fine tolerance shortens calibration loops and helps maintain consistent production quality in laboratories and quality control stations. Robust finish and handling for repeatable results A polished stainless steel surface offers resistance to corrosion and facilitates uncomplicated cleaning, while the button shape improves handling and minimises contact-induced error during use. The compact design and smooth finish reduce adsorption of contaminants, preserving the nominal 2 g mass between calibrations. For routine workflows this means fewer deviations over time, lower maintenance effort and a more reliable interval between full recalibrations. Seamless fit into accredited calibration routines Made for use in accredited verification procedures, this single reference weight supports documented calibration activities and secure inventory control. The compact dimensions (cylinder approx. 6×10 mm) and stable material properties contribute to long-term stability required by laboratories and calibration services. A protective case is recommended to preserve accuracy during storage and transport, ensuring conformity with procedural and audit demands. Contact Metav Werkzeuge in Emmerich for expert advice and secure supply of KERN calibration weights, including bespoke recommendations for integration into accredited calibration routines. Technical data Article number: 307 SKU: 307-02 GTIN: 4045761002678 Manufacturer: KERN Origin: DE Measurements & accuracy Nominal mass: 2 g Tolerance (OIML E1): 0.012 mg Cylinder dimensions: 6×10 mm Materials & special features Material: polished stainless steel Shape: button form OIML class: E1 Protective case recommended FAQ What tolerance can be expected from this calibration weight? The KERN 307-02 single calibration weight is specified to OIML E1 standard with a tolerance of 0.012 mg, suitable for laboratory-grade verification. Is this weight suitable for analytical balances and microbalances? Yes, the E1 classification and nominal mass of 2 g make it appropriate for high-resolution analytical balances and routine microbalance checks. How should the weight be maintained to preserve accuracy? Store the weight in a protective case and handle it with gloves or tweezers; clean the polished stainless steel surface with a soft cloth and avoid chemical cleaners that could alter the mass. Does the material affect long-term stability? The polished stainless steel construction supports stable mass properties and corrosion resistance, contributing to consistent performance over repeated calibrations. Metav Werkzeuge, Emmerich am Rhein, Germany | info@metav-werkzeuge.com | +49 2822 7131930
2 g Calibration Weight Button Stainless Steel Fine-Turned, OIML F2 Tolerance 0.4 mg - KERN
Take advantage of the combination of OIML Class F2 accuracy, finely turned stainless steel construction and a compact button form for dependable calibration routines; order directly via Metav Werkzeuge or consult our specialists for application advice. KERN 337-02 calibration weight — OIML F2, 2 g, stainless steel The KERN 337-02 is a button-style calibration weight designed for precise calibration and verification of laboratory and industrial balances OIML class F2 accuracy, 0.4 mg tolerance Nominal mass 2 g in button form Finely turned stainless steel finish Manufactured in Germany by KERN Consistent metrology performance for routine calibrations The OIML Class F2 specification ensures that this calibration weight delivers reproducible reference values for routine checks and internal calibrations. With a nominal mass of 2 g and a maximum permissible error of 0.4 mg, the weight supplies a quantifiable baseline that reduces measurement uncertainty during verification tasks. Explaining OIML briefly: the designation indicates defined limits for permissible error across internationally recognised classes, enabling comparability between instruments and easing documentation for quality systems. This translates into fewer out-of-tolerance alerts and smoother calibration workflows. Durable design that supports accurate handling Manufactured from finely turned stainless steel, the component offers both corrosion resistance and a hard-wearing surface that preserves mass stability over time. The button shape facilitates safe placement on small balance pans and minimises the contact area, which reduces the risk of contamination and handling-related error. A precisely machined finish also reduces adhesion of dust and oils, so recalibration intervals are extended in typical workshop environments. These construction choices result in a low-maintenance reference weight that retains metrological integrity under normal use. Practical integration into laboratory and workshop procedures This compact reference weight suits routine checks of analytical and precision balances where a 2 g reference is required. Storage and handling are straightforward: due to the fine accuracy, a protective case is recommended to avoid particle contamination and mechanical damage during transport — Metav recommends using a suitable storage etui for this class. Using a certified reference such as this reduces the time spent troubleshooting balance performance and supports traceable verification records, benefiting quality assurance processes and audit readiness. Contact Metav Werkzeuge for advice on integration and to source the KERN 337-02 calibration weight; specialists at Metav in Emmerich will advise on suitable storage etuis and delivery options Technical Data Article number: 337 SKU: 337-02 GTIN: 4045761006300 Manufacturer: KERN Facts Nominal mass: 2 g Tolerance (OIML F2): 0.4 mg Dimensions (cylinder): 6×11 mm Tariff number: 84239090 OIML class: F2 Special features Material: finely turned stainless steel Form: button shape Origin: DE (Made in Germany) Recommendation: protective etui for precise classes FAQ What level of accuracy does this weight provide? The KERN 337-02 calibration weight meets OIML Class F2 with a maximum permissible error of 0.4 mg, suitable for routine calibration and verification of precision balances. Is the material suitable for workshop environments? Yes — the weight is made from finely turned stainless steel, offering corrosion resistance and a durable surface appropriate for laboratory and controlled workshop conditions. Which balances is a 2 g weight appropriate for? A 2 g reference is commonly used for small analytical and precision balances that require low-mass calibration points; the KERN 337-02 is designed for these applications. Is a storage case necessary for this weight? Due to the fine tolerance of OIML F2 weights, a protective case is recommended to prevent contamination and mechanical damage; Metav suggests selecting a suitable etui from the accessory range. Where is this calibration weight produced? The KERN 337-02 is manufactured in Germany and distributed via Metav Werkzeuge for the European market. Manufacturer: KERN — Made in Germany. Contact via Metav Werkzeuge: info@metav-werkzeuge.com | Tel: +49 2822 7131930
2 g Calibration Weight Knob Shape Polished Stainless Steel OIML E2 0.04 mg Tolerance - KERN
Take advantage of the combination of laboratory-grade OIML class E2 accuracy, a polished stainless steel finish and compact button design for reliable balance verification; order the calibration weight directly via Metav Werkzeuge or consult our specialists for DAkkS calibration and packaging options. KERN 317-02 calibration weight — OIML class E2, 2 g KERN 317-02 is a precision calibration weight in button form, designed for balance verification and traceable mass checks in laboratories and quality-assurance settings. OIML class E2 precision Nominal mass 2 g Polished stainless steel finish Tolerance 0.04 mg Stable reference for precise mass verification The compact calibration weight offers OIML class E2 accuracy, providing a highly reliable reference for the verification of analytical and precision balances. Its 2 g nominal mass and tight 0.04 mg tolerance ensure minimal measurement uncertainty, making the weight suitable for demanding quality-control routines. The button shape supports secure placement on pans and reduces handling errors; the polished stainless steel surface resists corrosion and simplifies cleaning, which aids in maintaining long-term measurement stability. Traceability and calibration options for conformity For traceable results, the test mass is compatible with laboratory calibration chains and can be integrated into routine verification procedures. Note that the EC first-marking of calibration weights will no longer be available from 30 November 2025; therefore, a DAkkS calibration is recommended and serves as an equivalent solution for most applications. This approach ensures documented traceability and supports internal quality systems or accreditation requirements with measurable evidence of conformity. Practical handling and storage recommendations The button-style design combined with the polished stainless steel material reduces surface contamination and wear during use. For weights in this accuracy class a protective case is strongly recommended to avoid contamination and mechanical damage during storage and transport; suitable etuis are available in the accessories section. The compact dimensions (cylindrical form approx. 6×10 mm) make the reference weight easy to handle with tweezers or lifting devices, limiting the risk of oil transfer from the skin and preserving calibration integrity. Choose the KERN 317-02 for laboratory-grade reference mass and contact Metav Werkzeuge for advice on DAkkS calibration, suitable protective cases and delivery options — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 317 SKU: 317-02 GTIN: 4045761003545 Facts Nominal mass: 2 g Tolerance (OIML): 0.04 mg Dimensions (cylindrical): 6×10 mm Special features Material: polished stainless steel Form: button shape OIML class: E2 Origin: DE Commodity code: 84239090 Recommendation: use protective case; DAkkS calibration advised FAQ What balances is this calibration weight suitable for? The KERN 317-02 calibration weight (SKU 317-02) is suitable for analytical and precision balances that require OIML class E2 reference masses, typically used in laboratory and quality assurance environments. Is DAkkS calibration available for this weight? Yes. A DAkkS calibration is recommended for the KERN 317-02 and provides traceable documentation equivalent to EC first-marking for most applications, particularly after 30 November 2025. How should the weight be handled to maintain accuracy? Handle the test mass with tweezers or gloves; the polished stainless steel surface of the KERN 317-02 reduces contamination risk but a protective case is advised to prevent mechanical damage and preserve calibration. Does the button shape affect usage on balance pans? The button form offers stable contact with most balance pans and reduces rocking; it is specifically designed for ease of placement and minimal handling error during verification. Can the weight be used for routine internal checks and formal calibrations? Yes. The reference weight is appropriate for routine internal verifications and, when supplied with DAkkS calibration, can be used for formal calibration procedures requiring documented traceability. Manufacturer: KERN · Address: Germany · Contact: not provided
2 g Compact Stainless Steel Calibration Weight, OIML E2, 0.04 mg Tolerance - KERN
Take advantage of high certification, exact tolerance and durable finish for dependable calibration cycles; order directly via Metav Werkzeuge or contact our consultants for technical advice. KERN 316-02 — Single Test Weight (OIML E2, 2 g), Polished Stainless Steel The KERN 316-02 is a compact OIML E2 test weight designed for laboratory and workshop calibration of precision balances. OIML class E2 certified accuracy Nominal value 2 g for fine calibration Polished stainless steel compact form Tolerance ±0.04 mg Certified accuracy that shortens verification cycles The OIML E2 classification guarantees a high level of metrological reliability for routine checks and official verifications. With a nominal value of 2 g and a declared tolerance of ±0.04 mg, this calibration weight provides a stable reference that reduces uncertainty in measurements and speeds up adjustment procedures. The clear specification of accuracy simplifies compliance with internal quality systems and audit requirements, enabling technicians to make confident decisions based on verifiable data. Robust finish and compact design for practical handling Manufactured from polished stainless steel, the weight resists surface corrosion and is easy to clean, which preserves its calibrated condition during daily use. The compact form and small cylinder dimensions support efficient storage and minimise the space required in calibration kits. For optimum protection of the high-precision surface, a dedicated etui is recommended to prevent contamination and mechanical damage during transport or when not in use. Seamless integration into calibration workflows As a single certified weight, this calibration instrument fits directly into existing verification procedures for precision balances, enabling fast, repeatable checks without extensive rearrangement of test setups. Traceability to recognised standards is supported by the product’s classification and labelling, encouraging consistent documentation and record keeping. Using a certified reference weight helps to reduce downtime and maintain measurement confidence across production and inspection processes. For expert advice and secure supply of the KERN 316-02, contact Metav Werkzeuge in Emmerich — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical Data Article number: 316 SKU: 316-02 Manufacturer: KERN GTIN: 4045761094840 Facts Nominal value: 2 g OIML class: E2 Tolerance: ±0.04 mg Cylinder dimensions: 6×10 mm Tariff code: 84239090 Special features Material: Polished stainless steel Form: Compact form Origin: DE Recommended accessory: etui (case) FAQ What level of accuracy does this test weight provide? The KERN 316-02 is certified to OIML E2 with a tolerance of ±0.04 mg, suitable for high-precision calibration tasks. Can this weight be used for routine balance verification? Yes, the 2 g nominal value and E2 classification make it appropriate for routine checks and adjustments of precision balances. What material is the weight made from and why does it matter? The weight is made from polished stainless steel, which enhances durability, reduces corrosion risk and keeps the reference surface stable over time. Is additional protection recommended during storage or transport? Due to the fine tolerance, a protective etui is recommended to avoid contamination and mechanical damage to the calibration surface. Metav Werkzeuge, Emmerich am Rhein — info@metav-werkzeuge.com | +49 2822 7131930 | WhatsApp +49 170 2837271
2 g Hook Weight OIML Class M1 Stainless Steel Turned, 1.2 mg Tolerance - KERN
Take advantage of the combination of OIML Class M1 accuracy, a nominal mass of 2 g and precision-turned stainless steel construction for dependable small-mass calibrations; order directly via Metav Werkzeuge or contact our consultants for clarification. KERN 347-026 Hook Weight — OIML Class M1, 2 g, precision stainless steel A KERN 347-026 hook weight designed for precise calibration of hanging and laboratory scales, delivering small-mass traceability in workshop and metrology environments. OIML Class M1 accuracy 2 g nominal mass Precision-turned stainless steel Tolerance 1.2 mg Ensure legal and laboratory compliance with consistent small-mass accuracy Calibration and verification routines depend on repeatable, certified masses. The OIML Class M1 rating provides an objective standard for instruments that require small-mass references; with a nominal mass of 2 g and a documented tolerance of 1.2 mg, the weight supports reproducible adjustments and verifications. For laboratories and inspection routines, this level of specification reduces measurement uncertainty and helps to maintain compliance with statutory and internal quality requirements. Built for regular handling: corrosion resistance and compact form Made from precision-turned stainless steel, the hook-type mass combines long-term durability with a surface finish that resists corrosion and wear. The compact cylinder dimensions of 6×18 mm and the hook attachment facilitate straightforward use with hanging scales or test rigs, while the robust machining reduces deformation risk during routine handling. The result is a test mass that remains dimensionally stable over repeated use, lowering maintenance needs and preserving calibration schedules. Integrates into inventory and traceability workflows The product is supplied with clear identifiers that simplify stock control and documentation: SKU 347-026 and GTIN information support inventory tracking and certificate linkage. Origin information and standardised classification aid in procurement and customs processing, while the hook configuration allows immediate deployment in both workshop and laboratory environments. Using a dedicated small-mass reference like this hook-type test weight reduces time spent searching for suitable standards and contributes to consistent measurement results across multiple stations. Contact Metav Werkzeuge in Emmerich to secure the KERN 347-026 for reliable small-mass calibrations or to request the full technical certificate and purchasing guidance. Technical data Article number: 347 SKU: 347-026 Manufacturer: KERN GTIN: 4045761256163 Origin: Germany HS code: 84239090 Facts Nominal mass: 2 g OIML class: M1 Tolerance: 1.2 mg Cylinder dimensions: 6×18 mm Special features Material: precision-turned stainless steel Hook-type test weight Category: Calibration weights FAQ What level of accuracy does this hook weight provide? The KERN 347-026 hook weight is specified to OIML Class M1 with a tolerance of 1.2 mg, making it suitable for small-mass calibrations where that class is required. Can the hook weight be used with hanging scales and laboratory balances? Yes. The hook attachment and compact dimensions make the hook-type test weight appropriate for hanging scales and for use as a small reference mass during laboratory checks. Is the material resistant to corrosion and frequent handling? The calibration mass is made from precision-turned stainless steel, providing corrosion resistance and a durable finish suitable for regular workshop or laboratory use. How is traceability managed for this product? The item is supplied with identifiers such as SKU 347-026 and GTIN 4045761256163, which support certificate linkage and inventory traceability within quality management systems. Where is the product manufactured? The hook weight originates from Germany, reflecting controlled production standards for calibration equipment. KERN · Origin: Germany · GTIN: 4045761256163
2 g Precision Calibration Weight Button Shape Stainless Steel Fine‑Turned OIML Class M2 - KERN
Take advantage of the combination of proven metrological reliability and robust stainless‑steel construction to keep balance verification consistent and efficient. Order the KERN 357‑02 calibration weight directly via Metav Werkzeuge or consult our specialists for selection advice. KERN 357-02 Calibration Weight (OIML Class M2, 2 g, stainless steel button) The KERN 357-02 is a stainless steel, fine‑turned button calibration weight designed for precise verification of balances and scales in workshop and laboratory environments Single calibration weight, button form OIML Class M2 accuracy Nominal mass 2 g for balance verification Fine-turned stainless steel construction Reliable results for routine verification The KERN 357-02 serves as a compact solution for routine checks and functional tests of industrial and laboratory scales. As an OIML Class M2 mass with a 2 g nominal value, it supplies a reproducible reference point for balance performance checks and drift detection. This aids in maintaining traceable quality control procedures and reduces the risk of unnoticed measurement deviation during daily operations. Robust material and user‑friendly handling Manufactured from fine‑turned stainless steel, the weight resists corrosion and allows simple cleaning after use, which supports long service life and consistent surface condition. The button shape ensures stable placement on pans and reduces the likelihood of tipping, while the compact design simplifies storage and inventory handling. These characteristics minimise handling errors and help preserve the metrological condition of the mass. Practical integration into calibration workflows A single, precisely made calibration mass like this one fits easily into regular verification routines, from incoming goods to in‑line quality checks. The compact format enables quick comparison tests, while the documented class and material support procedural records. Metav’s role as a precision partner further complements the product: decades of expertise, a broad product range and reliable supply from Emmerich ensure straightforward procurement and consistent availability of metrology essentials. For assured balance verification and expert advice on selecting the right calibration weights, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 to request the KERN 357-02 and support from our metrology team Technical Data Article number: 357 SKU: 357-02 Manufacturer: KERN Product type: Calibration weight Material: Fine-turned stainless steel OIML class: M2 Form: Button Nominal mass: 2 g Key figures Mass: 2 g Mass (kg): 0.002 Special features Single weight, individual item Fine-turned finish for surface consistency Compact button shape for stable placement Intended for balance and scale verification FAQ What accuracy class does this weight have? The KERN 357-02 is specified as OIML Class M2, suitable for routine verification and functional checks of many workshop and industrial balances. Is the weight corrosion-resistant and easy to clean? Yes. The fine-turned stainless steel construction of the KERN 357-02 provides good resistance to corrosion and allows straightforward cleaning without damaging the mass. Can this be used for laboratory reference calibrations? The KERN 357-02 is intended for verification tasks and routine checks; for highest‑precision reference calibrations, laboratory standards in higher accuracy classes are typically required. How should the weight be stored and handled? Handle the weight by its edges or with tweezers to avoid contamination. Store the KERN 357-02 in a clean, dry case and avoid contact with chemicals or abrasive surfaces to preserve its metrological condition. Metav Werkzeuge, Emmerich am Rhein, Germany — Email: info@metav-werkzeuge.com — Phone: +49 2822 7131930
2 g Precision Calibration Weight Eco Form Polished Stainless Steel 0.12 mg Tolerance - KERN
Take advantage of precise, certified weighing for reliable quality control: a compact 2 g reference mass in OIML Class F1 with polished stainless steel finish ensures traceable calibration and long service life. Order directly via Metav Werkzeuge or consult our specialists for technical clarification. KERN 326-02 — Compact 2 g OIML F1 calibration weight, polished stainless steel A single KERN 326-02 calibration weight designed for traceable verification of precision balances and laboratory scales in quality assurance and inspection environments. Calibration weight »326-02« by KERN OIML Class F1 accuracy Eco‑Form compact stainless steel Tolerance 0.12 mg for traceable results Accurate, certified measurements that protect processes The polished stainless steel construction and OIML Class F1 specification deliver a reliable reference for routine verification and calibration tasks. With a nominal mass of 2 g and a declared tolerance of 0.12 mg, this single calibration weight reduces measurement uncertainty and supports compliance with internal quality systems. The compact Eco‑Form design eases handling and storage while providing a stable mass reference suitable for precision balances and laboratory scales. Users benefit from fewer adjustments and faster validation cycles due to the weight’s tight tolerance and consistent surface finish. Robust design for repeatable, low-maintenance use Manufactured from polished stainless steel, the weight resists corrosion and contamination, keeping its metrological properties stable over time. The cylinder dimensions of 6 × 10 mm make it easy to position on small pans without risking contact with surrounding surfaces, and the compact shape simplifies handling during routine checks. As a single-reference mass, it supports efficient calibration routines and helps maintain production throughput with minimal downtime. The robust material and finish also reduce the need for frequent cleaning, thereby lowering operational overheads for laboratories and workshops. Traceability and conformity that ease audits Supplied as an individual calibration weight with OIML F1 designation, the component supports documented traceability and audit requirements in regulated environments. The precise nominal value (2 g) and declared tolerance (0.12 mg) provide a clear basis for measurement uncertainty calculations and calibration records. Using a standardised reference mass simplifies conformity assessments and facilitates consistent acceptance criteria across production lines and inspection stations. The registered GTIN and SKU ensure unambiguous identification in inventory and quality documentation. Contact Metav Werkzeuge in Emmerich for tailored advice on the KERN 326-02 calibration weight — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data SKU: 326-02 Article number: 326 GTIN: 4045761223738 Manufacturer: KERN Origin: DE Tariff code: 84239090 Facts Nominal mass: 2 g Tolerance (OIML): 0.12 mg Cylinder dimensions: 6×10 mm OIML class: F1 Weight (kg): 0 Special features Form: Eco‑Form Material: polished stainless steel Product group: single calibration weight Product category: calibration weights FAQ What is the declared tolerance of this calibration weight? The declared tolerance for the KERN 326-02 is 0.12 mg, suitable for precision checks where OIML F1 accuracy is required. Can this weight be used for small laboratory balances? Yes, the compact Eco‑Form cylinder and 2 g nominal mass make it appropriate for many precision balances and laboratory scales. What material is the weight made from and why does it matter? The weight is made from polished stainless steel, which offers corrosion resistance and stable surface properties that support repeatable measurements. Is the KERN 326-02 suitable for audit documentation and traceability? Yes, the OIML Class F1 rating and clear SKU/GTIN identification facilitate traceable calibration records and audit processes. KERN, Germany
2 g Precision Test Weight Button Form Stainless Steel Fine‑Turned, OIML Class M1, 1.2 mg Tolerance - KERN
Take advantage of high metrological reliability and a compact, durable design for consistent calibration results; the combination of OIML Class M1 accuracy and a finely turned stainless-steel finish keeps verification processes efficient and dependable. Order or request advice directly via Metav Werkzeuge when calibration or procurement guidance is required. KERN 347-02 test weight — OIML Class M1, 2 g, stainless steel A KERN 347-02 test weight designed for precise calibration of balances and scales, featuring a knob shape for safe handling and compact placement. OIML class M1 certified accuracy Nominal mass 2 g in knob form Finely turned stainless-steel construction Nominal tolerance 1.2 mg Consistent measurement certainty for routine and laboratory checks The combination of OIML Class M1 conformity and a nominal mass of 2 g makes this calibration weight suitable for routine verification of precision balances where high repeatability is required. The declared tolerance of 1.2 mg defines the maximum permissible deviation and supports reliable comparison measurements. Explaining the classification: OIML M1 denotes a mid-range accuracy category commonly used in industrial and laboratory contexts where metrological confidence is needed without the premium constraints of E1 or F1 classes. With clear conformity information, traceable procedures and documented tolerances, the calibration weight supports documented quality control workflows and audit trails. Robust, compact design that simplifies handling and storage A knob-shaped Top form facilitates secure positioning on balance pans and reduces the risk of slipping during measurement operations. Crafted from finely turned stainless steel, the weight offers corrosion resistance and dimensional stability over time, which reduces drift between calibrations. The compact cylinder dimensions of 6×11 mm mean the weight occupies minimal space in storage sets and allows easy stacking in calibration cases. The combination of a tactile knob and a turned finish also aids repeatable placement, reducing positional variance and improving day-to-day efficiency in verification tasks. Compliance guidance and calibration pathway for future-proof workflows The product is manufactured in Germany and intended for professional calibration use; note that initial EU-type approval (EG-first verification) for such test weights will no longer be possible after 30.11.2025. For most applications, a DAkkS calibration is recommended as an equivalent, accredited alternative that ensures traceability and acceptance in regulated environments. DAkkS-certified calibration provides an official measurement report and supports integration into documented quality management systems, offering both legal certainty and confidence in measurement results for production, laboratory or inspection routines. For procurement of OIML-compliant test weights such as the KERN 347-02 and for recommendations on DAkkS calibration or suitable calibration intervals, contact Metav Werkzeuge in Emmerich — email info@metav-werkzeuge.com or call +49 2822 7131930 for personalised advice and ordering support Technical data Article number: 347 SKU: 347-02 GTIN: 4045761008649 Manufacturer: KERN Country of origin: DE Commodity code: 84239090 Product group: Test weight Facts Nominal mass: 2 g Tolerance (OIML M1): 1.2 mg Cylinder dimensions: 6×11 mm OIML class: M1 Special features Knob form Finely turned stainless steel Recommended: DAkkS calibration Made in Germany FAQ What does OIML Class M1 mean for measurement tasks? OIML Class M1 defines a metrological accuracy level suitable for many industrial and laboratory applications; the KERN 347-02 meets these limits and is intended for routine verification and calibration. Is a DAkkS calibration available for this weight? Yes, a DAkkS calibration is recommended for the KERN 347-02 as an accredited alternative to first verification and supports traceability and formal documentation. How should the weight be handled and stored to preserve accuracy? Handle the weight by the knob, using gloves or tweezers where possible to avoid contamination; store in a clean, dry case to prevent corrosion and mechanical damage. Can this weight be used for routine production checks on shop-floor balances? The 2 g nominal mass and M1 tolerance make this weight appropriate for routine shop-floor checks on precision balances, where mid-range accuracy is sufficient. Are material properties important for long-term stability? Yes; the finely turned stainless-steel construction contributes to corrosion resistance and dimensional stability, reducing the need for premature recalibration. Manufacturer: KERN — Address: not provided — Contact: not provided
2 g Slotted Calibration Weight Stainless Steel Fine‑Turned OIML Class M1 1.2 mg Tolerance - KERN
Take advantage of high conformity and stable handling by combining OIML M1 accuracy, a finely turned stainless steel finish and compatibility with Type A carriers for reliable, repeatable calibrations. Order the KERN slotted weight directly via Metav Werkzeuge or contact our consultants for application advice. Slotted weight (Type A) KERN 347-025 — OIML M1, 2 g, stainless steel A slotted weight (Type A, KERN 347-025) intended for precise calibration of laboratory and workshop scales, designed for use with Type A carrier rods and comparative weighing procedures. OIML class M1 accuracy Nominal mass 2 g, tolerance 1.2 mg Finely turned stainless steel finish Consistent accuracy for compliant calibration procedures The OIML M1 classification and a nominal mass of 2 g with a declared tolerance of 1.2 mg provide a clear technical basis for routine calibration tasks and quality checks. This level of specification supports reproducible measurement results and simplifies documentation during audits, since the weight’s performance is defined by recognised international tolerances. The design reduces measurement uncertainty and helps maintain production and inspection reliability. Durable finish that eases handling and reduces error Manufactured from stainless steel with a finely turned surface, the component offers mechanical stability and resistance to environmental influences common in workshop settings. The smooth finish minimises contamination risks and allows straightforward cleaning without compromising form or mass. Robust construction reduces the likelihood of damage during handling and storage, which preserves the calibrated value and extends the service life of the weight. Compact format for seamless integration into weighing setups With a cylinder dimension of 13 × 3.7 mm, the compact geometry ensures that the weight fits standard slotted carriers while occupying minimal bench space. Compatibility with Type A carrier rods means the weight can be integrated into comparative weighing chains or standard calibration rigs without additional adapters. This compactness supports efficient workflows and saves valuable laboratory or workshop area. Supports traceable procedures and quality assurance Originating from Germany and produced to meet OIML requirements, the slotted design contributes to traceable measurement systems when used within a documented calibration chain. The combination of defined tolerance, material stability and standardised format assists calibration laboratories and maintenance teams in meeting internal and external quality criteria, enhancing confidence in measurement results across production and inspection processes. Contact Metav Werkzeuge in Emmerich for tailored advice on selecting KERN calibration weights and compatibility with existing Type A carriers — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 347 SKU: 347-025 GTIN: 4045761256156 Manufacturer: KERN Origin country: DE Facts Nominal mass: 2 g Tolerance (OIML M1): 1.2 mg Dimensions (cylinder): 13 × 3.7 mm Commodity code: 84239090 Materials & features Material: stainless steel, finely turned OIML class: M1 Compatibility: Type A slotted weights / carrier rods Product group: single calibration weight FAQ What accuracy class does this calibration weight meet? The KERN slotted weight 347-025 meets OIML M1 classification with a declared tolerance of 1.2 mg, suitable for many laboratory and industrial calibration tasks. Can this weight be used with standard Type A carriers? Yes, the slotted design is compatible with Type A carrier rods and is intended for use in comparative weighing setups and standard calibration rigs. What material is the weight made from and what are the benefits? The weight is made from stainless steel with a finely turned finish, providing corrosion resistance, stable mass retention and easier cleaning during routine maintenance. Are the dimensions suitable for compact calibration setups? With a cylinder size of 13 × 3.7 mm, the component is compact and fits typical slotted carriers, allowing integration into space-conscious laboratory or workshop environments. Is this weight suitable for traceable quality systems? The KERN 347-025, by virtue of its OIML M1 classification and stable stainless steel construction, supports documented calibration processes and contributes to traceable measurement chains. KERN, Origin: Germany
2 g Test Weight Button Shape OIML M3 Stainless Steel Turned, 12 mg Tolerance - KERN
Take advantage of the combination of OIML-class accuracy, robust stainless-steel construction, and compact handling for consistent calibration results. Order the calibration weight directly via Metav Werkzeuge or consult our specialists for application guidance. KERN 367-02 calibration weight — OIML class M3, 2 g, finely turned stainless steel A single, knob-shaped calibration weight for verification and adjustment of precision scales and balances in workshops and laboratories. Calibration weight KERN 367-02, OIML class M3 Nominal mass 2 g with 12 mg tolerance Finely turned stainless steel knob form Made in Germany for dependable traceability Reliable mass reference for routine verification The OIML class M3 designation signals an established international tolerance range suitable for routine verification and adjustment tasks on a wide range of precision scales. With a nominal mass of 2 g and a specified tolerance of 12 mg, this single weight provides a measurable and reproducible reference that assists in maintaining consistent weighing performance. The classification simplifies decision-making when selecting a test artefact for regular checks, ensuring that results are comparable and that measurement uncertainty can be estimated from the defined tolerance. Robust handling and surface quality for repeat use Constructed from finely turned stainless steel, the weight combines surface quality with resistance to corrosion and handling wear. The knob form improves manual handling and enables secure placement on balance pans, reducing the risk of contamination or accidental displacement during calibration. The compact cylinder dimensions of 6×11 mm contribute to a small footprint while maintaining a precise centre of mass, so the mass reference remains stable across repeated use and routine workplace environments. Conformity and integration into calibration processes Traceability is supported by the manufacturer's specifications and the clear classification of the reference mass. The finely machined stainless-steel construction and defined tolerance make this weight suitable as a reference in internal control routines and as part of a documented calibration procedure. The compact single weight format simplifies inventory and storage within a calibration kit or workshop drawer while offering an auditable basis for routine checks. Originating from Germany, the component aligns with expectations for consistent manufacturing and quality control. For traceable calibration with KERN quality, contact Metav Werkzeuge in Emmerich for procurement advice or to request further technical details — eMail: info@metav-werkzeuge.com · Phone: +49 2822 7131930 · WhatsApp: +49 170 2837271 Technical data Article number: 367 SKU: 367-02 GTIN: 4045761257214 Manufacturer: KERN Origin: DE Facts Nominal mass: 2 g Tolerance (OIML M3): 12 mg Cylinder dimensions: 6×11 mm Tariff code: 84239090 Special features Material: stainless steel, finely turned Form: knob form (button shape) OIML class: M3 Product type: single calibration weight FAQ What does OIML class M3 mean for everyday calibration tasks? OIML class M3 defines an internationally recognised tolerance band; the KERN 367-02 calibration weight (single weight, OIML M3, SKU 367-02) meets this band and is therefore suitable for routine verification of many precision balances. Is the weight suitable for laboratory and workshop balances? Yes, the 2 g mass with 12 mg tolerance is intended for verification and adjustment tasks on a range of laboratory and industrial scales where M3-class artefacts are appropriate. How should the stainless-steel weight be handled to preserve accuracy? Handle the finely turned stainless-steel knob form with clean tweezers or gloves to avoid oils and contamination; the design reduces handling risk but consistent care ensures long-term stability of the reference mass. Does this weight come with certification or traceability documentation? The product specification indicates conformity with OIML class M3; for formal calibration certificates or traceability documents, consult Metav Werkzeuge or the manufacturer’s documentation available upon request. Manufacturer: KERN, Germany
2 kg Calibration Weight Button & Cylinder Form OIML Class M3, Painted Cast Iron, 1 g Tolerance - KERN
Take advantage of certified accuracy and a robust painted cast iron construction to keep calibration routines reliable and repeatable; its OIML Class M3 specification and 1 g tolerance make it a practical choice for routine checks—order the calibration weight directly via Metav Werkzeuge or consult our advisors for application guidance. Calibration weight KERN 366-95 — 2 kg, OIML Class M3, painted cast iron The Calibration weight KERN 366-95 is a button-and-cylinder calibration mass intended for routine verification of industrial scales and balances in workshops and production environments. OIML Class M3 certification 2 kg nominal mass for calibration Painted cast iron construction Button and cylinder form for stable placement Reliable legal-class verification for routine checks The KERN 366-95 is specified to OIML Class M3, which defines an international tolerance band suitable for routine calibration and verification tasks in many industrial settings. The 2 kg nominal mass and tolerance 1 g ensure repeatable reference values for balances and bench scales, supporting consistent measurement outcomes. OIML classes indicate the allowed deviation from nominal mass; Class M3 is a pragmatic compromise between laboratory precision and workshop practicality, making this weight appropriate where traceable, reliable checks are required without invoking high-cost laboratory standards. Durable construction that suits workshop conditions Constructed from painted cast iron, this mass offers robust performance under normal handling and storage conditions. The button and cylinder form provides a low centre of gravity and secure seating on scale pans, which reduces wobble and improves repeatability during short-term checks. The cylinder dimensions (70×113 mm) combine easy handling with compact storage, so the mass is straightforward to incorporate into daily calibration routines while resisting wear from regular use. Seamless integration into maintenance and quality workflows Supplied by a reputable manufacturer and identified by SKU 366-95, this calibration mass is straightforward to reference in maintenance logs and calibration schedules. The solid construction and international class marking simplify inventory and compliance procedures, allowing service teams to standardise verification intervals without excessive complexity. For facilities seeking dependable day-to-day verification rather than primary standard calibration, this mass delivers a balance of precision and practicality that supports production uptime and quality control. Secure compliance with routine calibration needs by contacting Metav Werkzeuge for availability and expert advice on the KERN 366-95 calibration mass Technical data Article number: 366 SKU: 366-95 Manufacturer: KERN GTIN: 4045761012127 Facts Nominal mass: 2 kg Tolerance (OIML): 1 g Dimensions (cylinder): 70×113 mm Tariff number: 84239090 ECLASS: 32120103 Special features Material: painted cast iron Form: button and cylinder OIML class: M3 Product category: calibration weights FAQ What does OIML Class M3 mean for workshop calibrations? OIML Class M3 specifies an internationally recognised tolerance suitable for routine verification tasks; the KERN 366-95 meets this classification and is intended for regular checks rather than primary standard calibration. Is the 2 kg mass suitable for bench scales and floor scales? Yes, the 2 kg nominal mass and stable button-and-cylinder form make the weight appropriate for many bench scales and some floor scales during routine verification procedures. How robust is the painted cast iron construction for daily use? The painted cast iron composition offers durable resistance to handling and typical workshop environments, providing long-term dimensional stability for regular verification cycles. Which identifiers are useful for inventory and ordering? Reference the SKU 366-95 or GTIN 4045761012127 when documenting or ordering this calibration mass to ensure accurate procurement and traceability. KERN — Germany; Metav Werkzeuge: info@metav-werkzeuge.com | +49 2822 7131930 | WhatsApp +49 170 2837271
2 kg Calibration Weight Button Form OIML M3 Stainless Steel Fine-Turned, 1 g Tolerance - KERN
Take advantage of high repeatability and low drift through precise OIML-classified design; the fine-turned stainless steel construction and knob form ensure reliable handling and long service life. Order the calibration weight directly via Metav Werkzeuge or contact our consultants for specification advice. KERN 367-12 — Single calibration weight, OIML M3, 2 kg (knob shape) The KERN 367-12 is a knob-shaped single calibration weight designed for routine verification of laboratory and workshop scales; suitable for regular internal checks where defined OIML M3 tolerance is required. OIML Class M3 accuracy Nominal value 2 kg Fine-turned stainless steel construction Knob shape for secure handling Consistent accuracy for routine verification The OIML classification and stated tolerance 1 g provide a clear, reproducible benchmark for periodic checks and maintenance of weighing equipment. With a nominal value of 2 kg, this single test weight supports quick functional verification and helps detect drift before it affects process quality. The defined measurement tolerance simplifies documentation and decision-making in calibration routines, enabling efficient validation without excess complexity. Durable material reduces replacement cycles Manufactured from fine-turned stainless steel, the weight combines corrosion resistance with surface finish that resists wear from handling and storage. This material choice minimises long-term maintenance and preserves mass stability, contributing to fewer replacements and lower lifecycle interruptions. The robust construction suits busy workshop environments where resilience and low upkeep are decisive factors for operational continuity. Designed for safe handling and straightforward workflows The knob shape offers ergonomic handling for frequent use, making it easier to place and remove the weight on a balance without touching the mass-bearing surfaces. The compact cylinder dimensions (60×100 mm) balance stability and accessibility during routine procedures. As a single calibration weight, it integrates smoothly into existing test benches and calibration kits, supporting rapid checks that maintain production flow and inspection cadence. Traceability and suitability for industrial checks Classified as OIML M3, the weight supplies a quantifiable reference for traceable verification steps within quality management systems. As an individual calibration weight, it is suitable for internal control and routine verification tasks where M3-level accuracy meets regulatory or in-house requirements. The product’s origin and manufacturing standards support consistent performance across repeated use. For reliable routine verification choose the KERN 367-12 2 kg OIML M3 calibration weight — contact Metav Werkzeuge in Emmerich for detailed technical advice at info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical data Article number: 367 SKU: 367-12 GTIN: 4045761257306 Manufacturer: KERN Facts Nominal value: 2 kg Tolerance (OIML): 1 g Dimensions (cylinder): 60×100 mm HS code: 84239090 Special features Material: fine-turned stainless steel Form: knob shape Product type: single calibration weight OIML class: M3 Origin: Germany FAQ What level of accuracy does this calibration weight provide? The KERN 367-12 is specified as OIML M3 with a tolerance of 1 g, making it suitable for routine verification and internal control where M3 accuracy is appropriate. Can this weight be used for daily checks in a production environment? Yes, the KERN 367-12 single calibration weight is designed for regular verification tasks; its robust stainless-steel construction and knob shape support repeated handling in workshop settings. Is the material resistant to corrosion and wear? The weight is produced from fine-turned stainless steel, which offers good resistance to corrosion and maintains surface integrity during routine use. How does the knob form benefit workflow? The knob shape allows safer placement and removal on balances, reducing handling error and protecting the measurement surface, which streamlines repetitive checks. Does the product support traceable documentation? As an OIML M3-classified calibration weight, the KERN 367-12 provides a defined tolerance and nominal value that can be referenced in verification records and quality documentation. KERN — Germany; contact via Metav Werkzeuge: info@metav-werkzeuge.com, +49 2822 7131930
2 kg Calibration Weight Compact Stainless Steel Polished, OIML E2, 3 mg Tolerance - KERN
Take advantage of highly reproducible measurements and a robust, polished stainless-steel design: the compact form and OIML Class E2 tolerance ensure reliable calibration results and long service life. Order the weight directly via Metav Werkzeuge or consult our specialists for accessory recommendations. KERN 316-12 Single calibration weight (2 kg, OIML E2, polished stainless steel) The KERN 316-12 is a compact calibration weight designed for precise verification of laboratory and industrial scales, combining traceable accuracy with a corrosion-resistant finish. OIML Class E2 accuracy for legal verification Nominal value 2 kg for mid-range calibrations Polished stainless steel construction for durability Compact form for easy storage and handling Ensure measurement conformity with certified accuracy The OIML Class E2 rating of this calibration weight guarantees a narrow permissible error band, with a stated tolerance of 3 mg, making it suitable for high-precision verification tasks in calibration laboratories and in-process quality control. Using a class E2 test mass supports documented conformity to relevant standards and simplifies traceability chains. The 2 kg nominal value covers a common verification range for analytical and precision balances, so calibration routines can be standardised and performed more efficiently, reducing downtime and rework. Robust materials and compact handling for everyday use Constructed from polished stainless steel, this compact verification mass resists corrosion and surface wear, sustaining its metrological properties over repeated use. The compact form supports straightforward handling and minimises the footprint in a calibration kit or workshop cabinet. Due to the fine tolerance inherent in its class, a protective case is recommended to maintain accuracy during storage and transport—Metav offers suitable etuis and accessories to protect the mass and prolong its service life. The combination of durability and compactness reduces replacement frequency and supports reliable long-term performance. Integrate traceable weights into reliable workflows Adopting a certified single weight like the KERN 316-12 simplifies periodic verification schedules and aids accreditation efforts by providing a verifiable reference point for balance checks. Clear labelling and a stable material finish assist in routine visual inspections, while the weight’s origin from a recognised manufacturer supports supplier qualification processes. Sourcing from a partner such as Metav Werkzeuge ensures consistent availability and a central supply chain that helps reduce the number of suppliers and secures on-time delivery to the workshop or laboratory. For dependable calibration equipment and advice on suitable protective etuis, contact Metav Werkzeuge to discuss the KERN 316-12 and matching accessories for your quality routine Technical data Article number: 316 SKU: 316-12 GTIN: 4045761094932 Manufacturer: KERN Origin: DE Facts Nominal mass: 2 kg OIML tolerance: 3 mg Dimensions (cylinder): 60×94 mm Tariff number: 84239090 eClass: 32120103 Special features Polished stainless steel Compact form OIML Class E2 Single calibration weight Recommendation: use protective case for class E2 mass FAQ What accuracy class does this calibration weight have? The KERN 316-12 is certified to OIML Class E2, offering a tight tolerance of 3 mg suitable for precision verification tasks. Is the weight suitable for laboratory and industrial balances? Yes, the 2 kg nominal value makes this weight appropriate for both laboratory analytical balances and industrial precision scales requiring mid-range verification. How should the polished stainless-steel surface be maintained? Clean the surface with a soft, lint-free cloth and a mild, non-abrasive cleaner; avoid corrosive agents to preserve the finish and metrological integrity of the calibration weight. Is a protective case necessary for this weight? Due to the fine tolerance of an E2-class mass, a protective case is recommended to prevent contamination and mechanical damage during storage and transport. Can this weight support traceability and accreditation needs? Yes, the documented OIML Class E2 specification of the KERN 316-12 supports traceability requirements and can be integrated into accredited calibration procedures. KERN – Germany; Metav Werkzeuge, Emmerich am Rhein; Email: info@metav-werkzeuge.com; Phone: +49 2822 7131930
2 kg Calibration Weight Eco Form Polished Stainless Steel OIML F1, 10 mg Tolerance - KERN
Take advantage of precise conformity and robust construction combined for dependable calibration routines; the OIML F1 tolerance and polished stainless steel finish ensure reproducible results and long service life. Order the KERN 326-12 calibration weight directly via Metav Werkzeuge or ask our consultants if needed. KERN 326-12 calibration weight — 2 kg, OIML F1, polished stainless steel The KERN 326-12 calibration weight is a single precision mass in Eco‑Form for laboratory and workshop calibration of balances and scales. OIML class F1 for verified accuracy Nominal mass 2 kg in Eco‑Form Polished stainless steel construction Compact cylinder 60 × 102 mm Accuracy that integrates with calibration routines The OIML F1 classification of this calibration mass provides a clearly defined tolerance of 10 mg, making it suitable for routine verification and adjustment of precision balances where class F1 is required. Specification conformity reduces uncertainty in measurement chains and supports documented traceability when used as part of a calibration procedure. The nominal 2 kg mass and certified tolerance mean fewer intermediate checks are necessary, contributing to greater operational efficiency and consistent measurement results. Durable form and material for frequent handling Manufactured in polished stainless steel, the Eco‑Form cylinder is designed for daily handling and easy cleaning while resisting corrosion and surface damage. The compact 60 × 102 mm cylinder profile gives a small footprint in storage and a stable centre of gravity during use, aiding repeatable placement on balance plates. The smooth finish minimises contamination risk and simplifies maintenance, which helps to preserve calibration quality over time. Operational benefits: predictable workflow and reduced downtime Using a certified single mass streamlines verification steps and shortens calibration routines, delivering measurable time savings in busy workshops and service departments. The robust construction supports repeated handling without rapid wear, so calibration intervals remain stable and service interruptions are reduced. Combined with documented conformity, this mass supports reliable inventory of test equipment and sound quality assurance processes in production and lab environments. For supply and specialist advice on OIML F1 calibration masses, contact Metav Werkzeuge in Emmerich for sourcing and technical guidance via info@metav-werkzeuge.com or +49 2822 7131930 Technical data SKU: 326-12 Article number: 326 GTIN: 4045761223646 Manufacturer: KERN Country of origin: Germany Dimensions & tolerances Nominal mass: 2 kg Cylinder dimensions: 60 × 102 mm OIML class: F1 Tolerance (OIML F1): 10 mg Special features Eco‑Form design Polished stainless steel material Single calibration weight HS code: 84239090 FAQ Is this calibration weight suitable for routine balance verification? The KERN 326-12 calibration weight (OIML class F1) is intended for routine verification and adjustment of precision balances where F1 tolerance is specified. How should the stainless steel weight be stored to maintain accuracy? Store the KERN 326-12 in a clean, dry environment at stable temperature and avoid direct contact with corrosive substances to preserve surface condition and measurement stability. Can this weight be used for legal-for-trade calibrations? The OIML F1 classification indicates suitability for laboratory and industrial calibration tasks; legal-for-trade requirements depend on local regulations and may require different OIML classes. What practical advantage does the Eco‑Form bring? The Eco‑Form provides a compact, stable profile that eases handling and storage while maintaining the required mass distribution for repeatable placements on balance platforms. Manufacturer: KERN, Germany. Contact details not provided.
2 kg Calibration Weight, Button Shape, Stainless Steel Fine-Turned, OIML Class M1, 100 mg Tolerance - KERN
Reliable traceable reference for precise scale verification thanks to OIML M1 accuracy and a robust fine‑turned stainless steel finish; ideal where repeatable mass standards are required. Order the KERN 347-12 directly via Metav Werkzeuge or ask our consultants if needed. KERN 347-12 calibration weight — OIML M1, 2 kg, stainless steel The KERN 347-12 offers a compact, knob‑style calibration weight designed for verification and routine checks of laboratory and industrial scales. OIML class M1 for high-precision checks Nominal mass 2 kg with 100 mg tolerance Fine-turned stainless steel construction Knob form for safe handling and positioning Reliable reference for consistent measurement results A certified calibration weight in OIML M1 delivers a stable reference for repeatable verifications. With a nominal mass of 2 kg and a declared tolerance of 100 mg, this standard provides measurable assurance when validating balances or performing routine control checks. The defined tolerance supports clear decision thresholds for adjustments and repairs, reducing downtime and supporting quality control workflows in production and laboratory environments. Robust design that simplifies handling and storage The combination of fine‑turned stainless steel and a knob form gives the mass both corrosion resistance and ergonomic handling. The turned finish minimises surface irregularities that could trap contaminants, while the knob facilitates secure placement on pans and reduces the risk of accidental contact. This design choice prolongs service life and keeps handling errors to a minimum, contributing to reliable daily operation in workshops and test rooms. Conformity and calibration guidance for long-term traceability EC type approval for calibration weights will no longer be possible from 30 November 2025; therefore a DAkkS calibration is recommended for enduring legal and metrological traceability. A DAkkS certificate ensures national traceability chains and is accepted for most auditing and regulatory needs. Supplied from Germany, this standard mass supports documented traceability that is essential for accredited measurement routines and supplier quality agreements. For traceable verification with a trusted brand, request the KERN 347-12 through Metav Werkzeuge or consult our advisors for DAkkS calibration and delivery from Emmerich. Technical Data Article number: 347 SKU: 347-12 Manufacturer: KERN GTIN: 4045761008847 Tariff number: 84239090 Origin: Germany Facts Nominal mass: 2 kg Tolerance: 100 mg Dimensions (cyl.): 60 × 114 mm OIML class: M1 Special features Material: Fine-turned stainless steel Form: Knob form Product type: Single weight Recommendation: DAkkS calibration ECLASS: 32120103 FAQ What does OIML M1 mean for routine verifications? OIML M1 denotes a high-precision class; the KERN 347-12 meets this classification and is suitable as a reference for routine balance checks where a 100 mg tolerance is acceptable. Can this mass be used on workshop and laboratory scales? Yes, the 2 kg nominal mass and robust stainless steel construction make the weight appropriate for both industrial scales and laboratory balances, provided the balance capacity and accuracy class are compatible. How should the weight be handled to avoid errors? Handle the weight by the knob form and use clean gloves or tweezers; secure placement on a level pan minimises centre‑of‑gravity shifts and reduces handling-related deviations for the KERN 347-12. Is an EC type approval available for this weight? EC type approval for calibration weights will not be possible from 30 November 2025; instead, a DAkkS calibration is recommended to maintain traceability and audit acceptance for the KERN 347-12. How precise is the KERN 347-12 for calibration tasks? The declared tolerance is 100 mg for the 2 kg nominal mass, providing a reliable reference for control checks and routine verifications. KERN — Germany
2 kg Calibration Weight, Knob Form, OIML Class E2, Polished Stainless Steel, 3 mg Tolerance - KERN
Combining OIML E2 accuracy with a nominal mass of 2 kg and a polished stainless steel finish, this single calibration weight offers reliable traceability and simple handling for routine verifications; order directly via Metav Werkzeuge or contact our consultants for calibration advice. KERN 317-12 — single calibration weight, OIML E2, 2 kg, knob form The KERN 317-12 is a single calibration weight designed for verification and calibration of precision balances and scales in laboratories, calibration rooms and workshops. OIML class E2 accuracy Nominal mass 2 kg Polished stainless steel finish Knob shape for safe handling Consistent accuracy for critical verification tasks Calibration demands dependable reference masses. With the OIML E2 classification and a tolerance of ±3 mg, this reference mass provides the reproducible readings required for high-precision checks. The 2 kg nominal mass supports mid-range verification routines, enabling efficient cross-checks of analytical and precision balances. The certification class means documented conformity with international calibration standards, which simplifies quality assurance procedures and helps maintain measurement chains with minimal uncertainty. Durable construction that supports repeatable handling Made from polished stainless steel, the weight resists corrosion and is easy to clean, reducing the risk of surface contamination that can alter results. The knob form is ergonomically advantageous: it enables safe placement and removal from weighing pans while limiting direct contact with the active mass surface. This design reduces handling errors and preserves the mass value over repeated use. The compact geometry also assists in controlled manipulation within gloveboxes or clean environments. Ready for integration into calibration workflows The reference mass is suitable for routine laboratory checks and traceable calibration processes. For long-term reliability it is recommended to store the weight in a protective case and to arrange periodic DAkkS calibration to document traceability for audits and quality management systems. The construction and accuracy class make the weight a practical component of daily calibration schedules, reducing downtime and supporting consistent measurement results across production and testing lines. For traceable calibration and immediate supply, request the KERN 317-12 via Metav Werkzeuge in Emmerich — contact our team at info@metav-werkzeuge.com or +49 2822 7131930 for advice on DAkkS calibration and suitable protective cases Technical data Article number: 317 SKU: 317-12 GTIN: 4045761003729 Manufacturer: KERN Facts Nominal mass: 2 kg Tolerance (OIML E2): 3 mg Cylinder dimensions: 60×100 mm Special features Polished stainless steel material Knob shape (Knopfform) OIML class E2 conformity Origin: Germany Protective case recommended DAkkS calibration recommended FAQ What level of accuracy does this calibration weight offer? The KERN 317-12 is an OIML E2 class weight with a tolerance of 3 mg, offering high accuracy suitable for precision balance verification. Is the weight suitable for routine laboratory use? Yes, the polished stainless steel construction and knob shape make this single weight well suited for regular verification tasks in laboratories and workshops. How should the weight be maintained to preserve accuracy? Store the weight in a protective case when not in use, avoid direct contact with the active surface, and schedule periodic DAkkS calibration to maintain documented traceability. Can this weight be used for legal-for-trade verification? This weight is classed OIML E2 for calibration and verification purposes; for specific legal-for-trade requirements, consult the applicable national regulations and Metav Werkzeuge for guidance. Is calibration available through the supplier? Calibrations such as DAkkS are recommended and can be arranged; contact Metav Werkzeuge for options and documentation. Metav Werkzeuge, Emmerich am Rhein, Germany — info@metav-werkzeuge.com / +49 2822 7131930
2 kg Calibration Weight, Knob Form, Stainless Steel Turned, OIML F2, 30 mg Tolerance - KERN
Reliable OIML F2 accuracy combined with a fine‑turned stainless steel finish and an ergonomic knob form delivers consistent calibration results and straightforward handling; order the calibration weight directly via Metav Werkzeuge or consult our specialists for application advice. KERN 337-12 calibration weight — OIML F2, 2 kg, knob-shaped stainless steel KERN 337-12 is a knob‑shaped 2 kg calibration weight for laboratory and industrial balance verification, designed for routine checks and precise mass comparisons OIML class F2 accuracy 2 kg nominal mass Fine‑turned stainless steel finish Ergonomic knob shape for secure handling Precision that meets verification requirements The OIML class F2 rating and the specified 30 mg tolerance make this calibration mass suitable for accurate verification of analytical and precision balances where F‑class standards apply. Class F2 indicates a balance between high precision and practical usability in routine workflows; the defined tolerance quantifies the maximum permissible deviation, supporting reliable conformity checks. Use of a certified class reduces uncertainty in measurement chains and helps maintain documented quality control. Robust material and handling benefits Manufactured from fine‑turned stainless steel, the mass offers corrosion resistance and a smooth surface that minimises contamination and wear. The knob‑shaped form combined with dimensions 60 × 114 mm provides ergonomic grip and controlled placement on balance pans, reducing handling errors during calibration. The compact 2 kg mass is durable in workshop and laboratory environments, where repeatable positioning and surface integrity contribute directly to measurement stability. Practical integration into calibration routines As a single calibration mass, this knob mass simplifies spot checks and routine verification without the need for a complete set. The solid construction and clear classification support traceable calibration practices and easier documentation within quality systems. For storage and transport, a protective case is recommended to preserve surface quality and accuracy; this reduces the frequency of cleaning and potential recalibration needs, preserving long‑term value and uptime in measurement operations. For precise, traceable calibration with the KERN 337-12, contact Metav Werkzeuge in Emmerich for tailored advice and to arrange supply — email info@metav-werkzeuge.com or call +49 2822 7131930 (WhatsApp +49 170 2837271) Technical data SKU: 337-12 Article number: 337 GTIN: 4045761006492 Manufacturer: KERN Country of origin: Germany Commodity code: 84239090 Core data Nominal mass: 2 kg Tolerance (OIML F2): 30 mg Dimensions (cylinder): 60 × 114 mm Shape: knob‑shaped Features Material: fine‑turned stainless steel OIML class: F2 Recommended accessory: protective case / etui Form: knob FAQ What accuracy class does this calibration weight meet? The KERN 337-12 is specified to OIML class F2, with a maximum tolerance of 30 mg, suitable for routine verification of precision balances. Is the 2 kg mass suitable for workshop checks? Yes, the 2 kg knob‑shaped mass is intended for both laboratory and industrial balance checks where F2 classification is appropriate. What material is used for the weight and why does it matter? The mass is made from fine‑turned stainless steel, chosen for its corrosion resistance and smooth surface, which helps preserve accuracy during repeated use. Should the weight be stored in a case? A protective case is recommended for the KERN 337-12 to prevent surface damage and contamination, helping to maintain the specified tolerance over time. How can calibration or certification needs be met? For information about official calibration certificates or traceability requirements, Metav Werkzeuge can advise on options and local services suitable for the KERN 337-12. Metav Werkzeuge, Emmerich am Rhein — Email: info@metav-werkzeuge.com — Phone: +49 2822 7131930 — WhatsApp: +49 170 2837271
2 kg Calibration Weight, OIML Class E1 Knob Polished Stainless Steel, 1 mg Tolerance - KERN
Combine the highest measurement accuracy of OIML class E1 with a polished stainless steel finish and secure handling via a knob shape to ensure traceable, repeatable calibrations; order the weight directly through Metav Werkzeuge or request expert advice for integration into existing metrology routines. KERN 307-12 calibration weight — OIML E1, 2 kg, polished stainless steel The 307-12 is a precision calibration weight designed for laboratory and industrial scale verification, intended for the highest-accuracy OIML E1 applications and routine reference use. Calibration weight »307-12« by KERN OIML class E1 for highest accuracy Polished stainless steel finish Knob form for secure handling Precision that supports certified results The OIML class E1 classification signals the highest available accuracy for calibration masses used in laboratories and accredited test houses. With a nominal mass of 2 kg and a stated tolerance of 1 mg, this weight reduces the measurement uncertainty associated with mass verification and adjustment. Laboratories benefit from a clearly defined measurement standard that fits into accreditation scopes; the high-precision specification minimises drift between verifications and supports reliable documentation in calibration logs. Robust materials and handling for repeatable performance Manufactured in polished stainless steel, the weight resists corrosion and is easy to clean without affecting the measuring surface, which preserves mass stability over time. The knob form provides safe handling and prevents fingerprints or contamination on the critical measurement surfaces, maintaining the weight’s metrological integrity during transfers and routine use. Durable finish and compact dimensions contribute to long service life and low maintenance within a professional workshop or metrology room. Practical integration into quality processes The weight is suitable for use as a reference in balance verification, routine checks and traceability chains within production and quality assurance workflows. Given the E1 accuracy class, storage and transport conditions are important: a protective case is recommended to avoid mechanical damage and contamination that could affect readings. This makes the component practical for fixed laboratory benches and controlled transport between verification points, ensuring consistent calibration results and documented traceability. Ensure traceable, certified calibration with the KERN 307-12 — contact Metav Werkzeuge in Emmerich for tailored advice and ordering via info@metav-werkzeuge.com or call +49 2822 7131930 Technical Data Article number: 307 SKU: 307-12 GTIN: 4045761002760 Manufacturer: KERN Core data Nominal mass: 2 kg Tolerance: 1 mg Cylinder dimensions: 60×100 mm Tariff number: 84239090 eClass: 32120103 Materials & special features Material: Polished stainless steel Form: Knob form OIML class: E1 Origin: DE Recommended accessory: protective case for storage FAQ What level of accuracy does this calibration weight provide? The KERN 307-12 is an OIML class E1 calibration weight with a tolerance of 1 mg, providing the highest standard of accuracy for reference calibrations and accredited laboratory use. Is the weight suitable for routine balance verification in a quality laboratory? Yes; the 2 kg nominal mass and E1 classification make the weight suitable for regular verification tasks and for maintaining traceability in quality assurance procedures. How should the weight be handled to preserve accuracy? Handle the polished stainless steel mass by the knob form to avoid contact with the measuring surface; store it in a protective case to prevent contamination and mechanical damage which could alter the mass value. Can this weight be used outside a laboratory environment? The KERN 307-12 is designed primarily for controlled environments due to its E1 accuracy; if used outside a laboratory, protective transport and strict handling procedures are essential to maintain performance. Does the weight come with certification or documentation? Weights of this accuracy are typically issued with appropriate documentation; check the product details for available certificates and traceability records for the KERN 307-12. KERN, Germany
2 kg Hook Weight OIML M1 Stainless Steel Turned - KERN
Take advantage of the combination of OIML M1 accuracy, a practical hook design and finely turned stainless steel for reliable, repeatable scale verification; order the weight directly via Metav Werkzeuge or consult our specialists for technical details. KERN 347-126 Hook Calibration Weight — OIML M1, 2 kg The KERN 347-126 is a hook-type calibration weight intended for verification and adjustment of suspended scales and balances in workshops and testing labs. OIML class M1 certified accuracy Nominal mass 2 kg for medium calibration Finely turned stainless steel construction Hook design for suspended scale testing Accuracy that supports compliant measurement routines The OIML M1 classification and the specified tolerance of 100 mg make this hook calibration weight a dependable choice for routine verification where medium-level precision is required. Using a standardised test mass reduces the risk of measurement drift and supports consistent results across repeated checks. The clear numerical specification of 2 kg provides a straightforward reference point for recalibrating suspended weighing equipment, contributing to efficient quality control and minimised downtime. Robust material and machining for long service life Constructed from finely turned stainless steel, this test mass resists corrosion and maintains surface integrity under frequent handling. The turned finish enhances dimensional stability and reduces the likelihood of contamination affecting the mass value. These material and production choices translate into lower maintenance needs and predictable performance over time, helping workshops and inspection departments to plan calibration intervals with confidence. Practical hook geometry for fast verification workflows The integrated hook geometry simplifies attachment to suspended scales and dynamometers, streamlining verification procedures and saving operator time. The design supports secure suspension and balanced positioning, which reduces measurement scatter during weighing. As a hook-type mass, it is particularly suited to applications where direct suspension is required rather than placing a mass on a pan, thereby widening its practical use in everyday calibration tasks. Traceable classification and manufacturer quality Produced by KERN, the test weight comes with clearly stated technical parameters that aid traceability within internal documentation and routine audits. Originating from Germany, the product aligns with common metrology practices where standardised classes like OIML M1 are referenced in verification protocols. The combination of certified tolerance, stable material and a purpose-built form factor supports reliable in-house calibration processes and documented measurement quality. Contact Metav Werkzeuge in Emmerich for supply and expert advice on the KERN 347-126 hook calibration weight — email info@metav-werkzeuge.com or call +49 2822 7131930 for prompt technical information and delivery options Technical data Article number: 347 SKU: 347-126 Manufacturer: KERN GTIN: 4045761256255 Numeric specifications Nominal mass: 2 kg OIML class: M1 Tolerance: 100 mg Tariff code: 84239090 Materials & features Material: finely turned stainless steel Type: hook-type weight Origin: Germany (DE) FAQ What is the primary application of this hook weight? The hook calibration weight is intended for verification and adjustment of suspended scales and balances; the KERN 347-126 provides a standardised 2 kg reference mass for routine checks. Is the weight suitable for laboratory and workshop use? Yes, the OIML M1 classification and stainless steel construction make the KERN 347-126 appropriate for both workshop verification tasks and many laboratory calibration procedures. How precise is the mass value of the test weight? The mass has a specified tolerance of 100 mg in accordance with its OIML M1 designation, which defines the allowed deviation for a 2 kg nominal mass. Can the hook weight be used on platform scales? This model is designed as a hook-type mass for suspended weighing; for platform scales, a pan or block-type calibration mass would generally be more appropriate. Who manufactures this calibration weight and where is it made? The weight is manufactured by KERN and originates from Germany; technical details and supply are available via Metav Werkzeuge. Manufacturer: KERN — Address: Germany — Contact: not provided
2 kg Precision Check Weight Knob Shape Polished Stainless Steel OIML F1, 10 mg Tolerance - KERN
Take advantage of the combination of OIML class F1 accuracy, a polished stainless steel finish and an ergonomic knob for reliable handling — an efficient solution for traceable calibration tasks. Order the KERN 327-12 directly via Metav Werkzeuge or consult our specialists for application advice. KERN 327-12 Calibration weight — 2 kg, OIML class F1, polished stainless steel A KERN 327-12 calibration weight designed for precise mass verification of laboratory and industrial scales, featuring a knob form for straightforward handling OIML class F1 accuracy Polished stainless steel finish Knob shape for secure handling Consistent traceability for precision calibrations The KERN 327-12 is manufactured to OIML class F1 requirements and provides a nominal mass of 2 kg with a declared tolerance of 10 mg, which supports reproducible calibration routines and routine verification work. The declared tolerance reflects the maximal permissible deviation under the respective conditions; this precision reduces uncertainty in adjustment procedures and simplifies documentation for quality systems. For higher-level traceability, a DAkkS calibration is recommended and commonly accepted across laboratories and production sites. Robust finish and ergonomic handling to limit contamination and wear Constructed from polished stainless steel, the mass offers corrosion resistance and a smooth surface that minimises particle adherence and eases cleaning after use. The knob form supports stable pick-up with tweezers or gloved hands, lowering handling-induced measurement errors and enhancing operational safety during transfers. These design choices translate into prolonged service life and consistent measurement behaviour, reducing the frequency of replacement and the associated downtime. Compliance-ready design for labs and industrial workflows Manufactured in Germany and supplied from a quality‑controlled stock, the weight aligns with the needs of calibration laboratories and production inspection stations where documented accuracy and repeatability are required. Note that EC initial verification of calibration weights will no longer be available after 30 November 2025; in response, a DAkkS certificate is the recommended means of ensuring recognised traceability for most applications. Storage in a suitable case is advised to protect the polished surface and to preserve nominal mass stability between uses. Availability via Metav Werkzeuge ensures access to a broad range of accessories and calibration options. For OIML F1 traceability and advice on calibration certificates, contact Metav Werkzeuge — supplied from our Emmerich warehouse; email info@metav-werkzeuge.com or phone +49 2822 7131930 for consultancy and ordering Technical data Article number: 327 SKU: 327-12 GTIN: 4045761004825 Manufacturer: KERN Core data Nominal value: 2 kg OIML class: F1 Tolerance (OIML): 10 mg Cylinder dimensions: 60×115 mm ECLASS: 32120103 Tariff number: 84239090 Country of origin: DE Special features Material: polished stainless steel Form: knob form Recommendation: use a protective case for storage Note: EC initial verification unavailable after 30.11.2025; DAkkS calibration recommended FAQ What accuracy class does this calibration weight have? The KERN 327-12 is specified as OIML class F1, providing the precision required for many laboratory and industrial calibration tasks. Is the KERN 327-12 suitable for routine scale calibrations? Yes, the 2 kg nominal mass with a 10 mg tolerance makes the KERN 327-12 appropriate for routine adjustments and verification of balances where OIML F1 is accepted. What material and handling features does the weight offer? The weight is made from polished stainless steel and shaped with a knob to facilitate secure handling and maintain surface integrity. Is a calibration certificate available for this weight? A DAkkS calibration is recommended and commonly used with the KERN 327-12; note that EC initial verification of weights will not be possible after 30 November 2025. How should the weight be stored between uses? Storage in a protective case is advised to protect the polished surface and preserve mass stability; Metav Werkzeuge offers suitable cases as accessories. KERN · Germany · Contact: not provided
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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