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.
10 g Calibration Weight Button Polished Stainless Steel OIML F1, 0.2 mg Tolerance - KERN
Take advantage of OIML F1 accuracy and a 10 g nominal mass combined with a polished stainless-steel finish for repeatable, traceable calibrations; the compact button shape eases handling and placement. Order the calibration weight directly via Metav Werkzeuge or ask our consultants if needed. KERN 327-04 — Calibration weight, 10 g, OIML F1, polished stainless steel The KERN 327-04 is a button-style calibration weight for precision balance verification in laboratories, workshops and quality control environments. OIML class F1 accuracy Nominal mass 10 g Polished stainless steel finish Button form for secure placement Tolerance 0.2 mg for precise calibration Consistent metrology for reliable results The compact single weight delivers dependable, repeatable reference values that support routine verification and instrument adjustment. Built to OIML F1 standards, the mass provides a narrow tolerance of 0.2 mg, which means fewer uncertainties when checking analytical and precision balances. For operators unfamiliar with classification, OIML F1 denotes a high-accuracy mass standard suitable for laboratory and industrial calibration tasks; this leads directly to measurable improvements in process control and documentation. Long-term stability with easy handling Manufactured from polished stainless steel, the component resists corrosion and surface contamination, reducing drift and the need for frequent cleaning. The button form simplifies placement on pans and prevents rolling, which in practical terms saves time during repeated checks and minimises handling-related errors. Because the nominal mass is 10 g, the weight is small enough for rapid routine use yet substantial enough to provide clear calibration steps for a range of balances. Workflow integration and traceability This single calibration mass is suitable for inclusion in standard operating procedures and calibration logs, supporting traceable measurement chains when paired with an accredited calibration service. A DAkkS calibration is recommended to extend formal traceability for audit or certification purposes; Metav’s advisory teams can explain the difference between type verification and accredited calibration. For secure storage and to protect the accuracy class, a protective case is advised, particularly given the sensitivity of F1 tolerances. For traceable accuracy and practical advice on accessories or DAkkS calibration, contact Metav Werkzeuge in Emmerich — our specialists will advise on the KERN 327-04 and suitable storage options; eMail info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 327 SKU: 327-04 Manufacturer: KERN Country of origin: DE GTIN: 4045761004719 Core data Nominal mass: 10 g Mass in kg: 0.01 Tolerance (OIML): 0.2 mg Dimensions (dia × height): 10×19 mm Tariff number: 84239090 Special features Material: Polished stainless steel Form: Button shape OIML class: F1 Recommendation: Use a protective case for F1 weights Calibration suggestion: DAkkS recommended FAQ What accuracy class does this mass meet? The KERN 327-04 meets OIML F1 specifications, providing a tolerance of 0.2 mg suitable for high-precision balance checks. Is the material suitable for routine laboratory use? Yes. The polished stainless-steel construction resists corrosion and contamination, making the mass appropriate for regular use in laboratories and workshops. Can this weight be used for accreditation purposes? For formal traceability, a DAkkS calibration is recommended; the single weight itself complies with OIML F1, and an accredited certificate supports audit requirements. Are handling accessories necessary for accuracy maintenance? A protective case is advised because the F1 tolerance is sensitive to surface damage and contamination; Metav offers suitable cases and advice. Manufacturer: KERN, Germany
10 g Calibration Weight Button Shape, OIML Class M3, Turned Stainless Steel - KERN
Take advantage of the combination of OIML class M3 accuracy, a compact 10 g nominal mass and a finely turned stainless steel finish for reliable routine calibration and traceable checks; order the calibration weight directly via Metav Werkzeuge or ask our consultants if needed. KERN 367-04 calibration weight — 10 g, OIML M3, stainless steel The KERN 367-04 is a button-shaped calibration weight in OIML class M3, designed for routine verification of balances and scales in laboratories and workshops. OIML class M3 accuracy 10 g nominal mass Finely turned stainless steel finish Reliable accuracy for everyday verification The button mass delivers repeatable mass values for routine verification tasks. With a nominal value of 10 g and an OIML tolerance of 20 mg, this calibration weight supports consistent check procedures on precision balances and industrial scales. The compact dimensions and low mass enable efficient handling during regular verification cycles, helping to maintain measurement integrity across production and inspection points. Robust material and shape for frequent handling Manufactured from finely turned stainless steel, the weight resists corrosion and mechanical wear that can affect measurement stability over time. The button shape facilitates safe placement on pans and minimises the risk of tipping or contact marks. For workshops and service departments that perform regular checks, the durable construction reduces the need for frequent replacement and preserves calibration reliability. Clear conformity and straightforward use Certified as OIML class M3, this mass provides a recognised level of conformity suitable for many industrial and commercial verification tasks. Its small footprint and simple geometry make it easy to include in calibration routines and storage systems. The product’s design supports quick comparisons between a balance’s displayed value and the known nominal mass, simplifying decision-making in quality control processes. Contact Metav Werkzeuge for advice on integrating KERN calibration weights into your verification workflow — our Emmerich-based team will help select the right specification and ensure dependable supply. Technical Data Article number: 367 SKU: 367-04 GTIN: 4045761257238 Core data Nominal value: 10 g Mass in kg: 0.01 Tolerance (OIML M3): 20 mg Dimensions (cylinder): 10 × 17.5 mm Special features Manufacturer: KERN Material: finely turned stainless steel Form: button shape OIML class: M3 Origin: DE FAQ What accuracy class does this calibration weight meet? The KERN 367-04 meets OIML class M3, providing a tolerance of 20 mg for its 10 g nominal mass. Is the weight suitable for routine workshop verifications? Yes, the finely turned stainless steel construction and compact button form make the KERN 367-04 suitable for frequent checks on balances and scales in workshop and industrial settings. What are the physical dimensions of the weight? The calibration mass has a cylindrical dimension of 10 × 17.5 mm, designed for stable placement on typical balance pans. Manufacturer: KERN, Origin: Germany, Contact: not provided
10 g Calibration Weight Button Stainless Steel Fine-Turned, OIML Class M1 ±2 mg - KERN
Take advantage of precise mass standards with robust handling and traceable calibration: the combination of OIML class M1 accuracy, stainless steel construction and a compact 10 g nominal mass supports consistent balance verification in workshops and laboratories. Purchase options and calibration advice are available through Metav Werkzeuge; alternatively, consult the team for technical clarification. KERN 347-04 Calibration weight — OIML M1, 10 g, knob shape A KERN 347-04 calibration weight for accurate routine verification of balances and scales in workshop and laboratory environments. OIML class M1 accuracy Nominal mass 10 g Finely turned stainless steel Knob shape for reproducible placement Precise, certified accuracy for dependable verification Calibration artefacts with defined tolerances form the basis of reproducible measurement routines. The KERN 347-04 is manufactured to OIML class M1, offering a nominal value of 10 g and a specified tolerance of 2 mg, which supports reliable verification of laboratory and precision balances. This precision reduces uncertainty in daily checks and provides a clear, comparable metric for quality processes, helping to maintain measurement consistency across production and inspection tasks. Durable design that improves handling and repeatability A compact knob profile and finely turned stainless steel construction ensure both ease of use and long-term surface integrity. The knob form assists in consistent placement and removal from pans, improving repeatability in sequential checks. Stainless steel resists corrosion and handling wear, which preserves the mass value and minimises the need for frequent replacement—benefiting operational uptime and reducing maintenance interruptions. Traceability and calibration options for conformity Type-approval regimes are evolving: EG type-approval for calibration weights is no longer issued after 30 November 2025. For the majority of applications, DAkkS calibration is a suitable and widely accepted alternative that guarantees traceability and documented measurement certainty. Choosing a DAkkS-calibrated mass supports compliance with internal quality systems and external audit requirements and secures long-term validity of measurement records. Practical partner for workshop and industry needs Working with a supplier who understands precision demands streamlines procurement and aftercare. Metav Werkzeuge combines a broad product range with a focus on measurement quality and supply reliability from its Emmerich location. This single-weight solution integrates into regular verification routines and complements broader calibration strategies, helping to keep instrumentation within specification and production moving smoothly. Contact Metav Werkzeuge today to discuss DAkkS calibration options or to arrange supply of the KERN 347-04 calibration weight from our Emmerich stock Technical data Article number: 347 SKU: 347-04 GTIN: 4045761008670 Manufacturer: KERN Country of origin: DE Commodity code: 84239090 Facts Nominal value: 10 g Mass (kg): 0.01 Tolerance (OIML M1): 2 mg Dimensions (cylinder): 10×19 mm OIML class: M1 Special features Material: Stainless steel, finely turned Form: Knob shape ECLASS: 32120103 Note: EG type-approval not available after 30.11.2025; DAkkS calibration recommended FAQ What accuracy class does this calibration weight meet? The weight complies with OIML class M1 and has a tolerance of 2 mg, making it suitable for precise routine verification tasks. Is the 10 g weight suitable for laboratory balance checks? Yes. The 10 g nominal mass and M1 class tolerance support routine checks and comparative verifications on precision and laboratory scales. What material and form are used for improved handling? The mass is made from finely turned stainless steel and shaped as a knob, which facilitates reproducible placement and reduces handling variation. What calibration is recommended given regulatory changes? Since EG type-approval will not be issued after 30 November 2025, DAkkS calibration is recommended for traceable documentation and wide acceptance in audit and quality procedures. How does this weight support long-term measurement reliability? The combination of robust stainless-steel construction and defined tolerance limits helps preserve the nominal value over time, enabling consistent verification intervals and reduced downtime for replacements. Manufacturer: KERN, Germany — Contact via Metav Werkzeuge: info@metav-werkzeuge.com / +49 2822 7131930
10 g Calibration Weight Button Stainless Steel Fine-Turned, OIML Class M2 - KERN
Take advantage of reliable OIML class M2 accuracy combined with a finely turned stainless steel construction and a compact button design for consistent calibration results; order the test weight directly via Metav Werkzeuge or consult our specialists for application advice. KERN 357-04 — OIML M2 single test weight, finely turned stainless steel A single test weight KERN 357-04, engineered for the calibration and verification of precision balances in workshops and laboratories. OIML class M2 certified Finely turned stainless steel Button shape for secure placement Perfect for scale calibration and verification Consistent metrological performance for routine calibration The OIML class M2 rating defines permissible deviation bands suitable for many industrial and laboratory calibrations. This classification ensures the mass meets internationally recognised tolerances, providing a measurable basis for reliable balance verification. The nominal mass of 10 g and the compact mass of 0.01 kg are intended for checks where medium-level accuracy is required; using a standardised class reduces uncertainty and supports traceable processes in quality control workflows. Robust finish that keeps maintenance minimal Manufactured from finely turned stainless steel, the component offers corrosion resistance and dimensional stability under normal laboratory conditions. The fine turning process contributes to a uniform surface and mass distribution, which supports repeatable readings and reduces the need for frequent surface maintenance. The button shape supports stable placement on pans and minimises contact points that could alter the effective mass, resulting in lower handling-related variability during routine verification. Practical design to streamline calibration tasks As a single, compact calibration weight, the unit suits focused verification tasks and integration into existing calibration sets or procedures. The compact format facilitates easy storage and handling while preserving metrological integrity. For traceable documentation and selection advice, the designation KERN 357-04 and its classification provide clear orientation when assembling calibration kits or preparing standard operating procedures for balance verification. Contact Metav Werkzeuge for delivery from our Emmerich warehouse and expert advice on selecting the right KERN calibration weights for specific verification tasks Technical data Article number: 357 SKU: 357-04 Manufacturer: KERN Material: finely turned stainless steel Form: button shape Nominal value: 10 g Mass (kg): 0.01 OIML class: M2 Facts Nominal mass: 10 g Mass in kilograms: 0.01 kg Accuracy class: M2 Special features Single test weight Finely turned surface finish Button form for handling and placement Category: test weights (calibration) FAQ What does OIML class M2 mean for calibration? OIML class M2 indicates that the weight meets the tolerance limits defined for that class and is suitable for routine calibration and verification tasks where medium-level accuracy is required; the KERN 357-04 conforms to these standards. Is this weight suitable for laboratory and workshop use? Yes — the finely turned stainless steel construction and button shape make the weight appropriate for both laboratory and workshop calibration routines. How should the weight be handled to maintain accuracy? Handle the weight with clean gloves or tweezers and store it in a protective case or drawer to avoid contamination and surface wear; such care preserves the metrological properties of the KERN 357-04. What is the nominal mass of this test weight? The nominal mass is 10 g and the corresponding mass in kilograms is 0.01 kg, in accordance with the OIML class M2 specification. Which SKU and manufacturer apply to this calibration weight? This unit is supplied as SKU 357-04 by KERN and is listed for use as a single test weight in calibration applications. KERN — Address and contact details not provided
10 g Calibration Weight Eco Form Polished Stainless Steel, OIML F1 0.2 mg Tolerance - KERN
Benefit from precise OIML F1 accuracy, a compact Eco‑Form design and resilient polished stainless steel for reliable routine calibration; order the KERN 326-04 single weight directly via Metav Werkzeuge or ask our consultants if needed. KERN 326-04 single weight — 10 g, OIML F1, polished stainless steel A KERN 326-04 single calibration weight designed for traceable calibration of precision balances and scales in laboratories and workshops. OIML class F1 accuracy Nominal value 10 g, tolerance 0.2 mg Polished stainless steel construction Compact Eco‑Form cylinder 10 x 17.3 mm Reliable accuracy for routine calibration The compact 10 g mass is manufactured to OIML F1 specifications, delivering a reproducible reference with 0.2 mg tolerance that supports consistent measurement results. As a single mass standard, this calibration weight simplifies verification tasks where a high degree of metrological certainty is required, reducing downtime during scheduled checks and enabling faster decision-making in quality control processes. The clear classification also facilitates audit documentation and compliance with internal calibration routines. Durable design that eases handling and maintenance Constructed from polished stainless steel, the weight resists corrosion and surface contamination, which preserves the measurement surface and minimises cleaning cycles. The Eco‑Form profile combines a functional shape with secure handling: the compact cylinder is easy to position on a balance pan and less prone to accidental knocks. These design choices extend service life and reduce the frequency of replacement, delivering practical cost efficiency in everyday workshop or laboratory use. Seamless traceability for quality systems The single weight’s conformity to recognised standards supports traceable calibration within documented quality systems. The product is supplied with identifiers such as GTIN and SKU for inventory and calibration records, enabling straightforward integration into calibration logs and maintenance schedules. Using an OIML‑classified mass streamlines the preparation of certificates and reduces administrative effort during internal and external audits. Space-saving dimensions for flexible storage With a compact cylinder measuring 10 x 17.3 mm and a mass of 0.01 kg, the weight occupies minimal space in storage trays and calibration kits. Its small footprint benefits busy benches and crowded instrument rooms, allowing precise masses to be kept accessible without compromising bench space. The lightweight geometry also aids transport between test locations, supporting versatile use across production lines and inspection stations. Contact Metav Werkzeuge in Emmerich for certified documentation, stock availability and delivery options for KERN calibration weights Technical Data SKU: 326-04 Article number: 326 GTIN: 4045761223714 Manufacturer: KERN Origin: DE Facts Nominal mass: 10 g Mass in kg: 0.01 kg Tolerance: 0.2 mg Cylinder dimensions: 10 x 17.3 mm Commodity code: 84239090 Special features Eco‑Form Polished stainless steel OIML class F1 Product category: Calibration weights Product group: Single weights FAQ What accuracy class does this calibration weight have? The KERN 326-04 is specified to OIML F1 class with a tolerance of 0.2 mg, suitable for precise routine calibrations. Is the weight suitable for use in both laboratories and workshops? Yes, the polished stainless steel construction and compact Eco‑Form make the weight robust enough for workshop use while meeting laboratory traceability requirements. What are the physical dimensions and mass of the weight? The mass is 10 g (0.01 kg) with a cylinder size of 10 x 17.3 mm, designed for small balance pans and space‑efficient storage. Manufacturer: KERN — Germany; Supplier: Metav Werkzeuge, Emmerich am Rhein; Contact: info@metav-werkzeuge.com / +49 2822 7131930
10 g Calibration Weight, Knob Shape, Polished Stainless Steel, OIML Class E1, 0.02 mg Tolerance - KERN
Take advantage of the combination of OIML E1 accuracy, a polished stainless steel finish and a compact knob form to ensure repeatable calibration of high-precision balances; order the KERN 307-04 calibration weight directly via Metav Werkzeuge or consult our specialists for accessory recommendations. KERN 307-04 Calibration Weight — 10 g, OIML E1, polished stainless steel A KERN 307-04 single calibration weight in knob form designed for laboratory and precision-balance calibration where highest class accuracy and compact handling are required OIML class E1 accuracy 0.02 mg tolerance 10 g knob-shaped polished stainless steel weight Compact dimensions 10 × 18 mm for easy handling Precise class E1 performance for demanding metrology The OIML E1 classification and a declared tolerance of 0.02 mg place this single weight among the most exact calibration tools for analytical and microbalances. For laboratories and calibration service providers, that precision reduces measurement uncertainty and supports conformity with strict quality standards. The declared tolerance describes the maximum permissible deviation; in practice this means the weight can be used to verify balance performance at the top of the calibration pyramid, where small errors would otherwise propagate into routine measurements. Traceability to national standards is enabled when the weight is used within an accredited calibration workflow. Durable finish and ergonomic knob shape for reliable handling Manufactured from polished stainless steel, the weight resists corrosion and surface wear that could otherwise alter mass over time. The knob shape improves grip during handling and helps to avoid direct contact with the working faces, reducing contamination and the need for repeated cleaning. For everyday use in production control or research, this design supports repeatability: fewer handling-induced variations mean more consistent calibrations and less downtime for recalibration. The stainless finish also simplifies visual inspection for surface damage, a key step in routine maintenance and quality assurance. Compact dimensions and accessory recommendations for safe storage With cylinder dimensions of 10 × 18 mm and a nominal mass of 10 g, the single weight occupies minimal space in a set or case and is suited to tight bench environments. Owing to the very high accuracy class, a protective case is strongly recommended to prevent mechanical damage and particulate contamination during storage and transport; Metav lists suitable etuis in the accessories section. The small physical footprint combined with laboratory-grade construction makes this weight an efficient component of a traceable calibration kit used by calibration houses, university labs and precision workshops seeking consistent results. For expert advice and to order the KERN 307-04 calibration weight or compatible protective cases, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 for tailored recommendations and fast dispatch from Emmerich. Technical data Article number: 307 SKU: 307-04 GTIN: 4045761002692 Manufacturer: KERN Origin: DE Tariff code: 84239090 Facts Nominal value: 10 g Mass (kg): 0.01 kg OIML class: E1 Tolerance: 0.02 mg Cylinder dimensions: 10 × 18 mm Special features Material: polished stainless steel Form: knob shape Product group: single calibration weight Suitable for laboratory and precision-balance calibration FAQ What accuracy class does this calibration weight meet? The KERN 307-04 calibration weight meets OIML E1 classification with a declared tolerance of 0.02 mg, suitable for the most demanding balance checks. Can the 10 g weight be used for routine balance verification? Yes; this single 10 g test weight is intended for verification and calibration of analytical and microbalances where E1 class accuracy is required. How should the weight be stored to preserve accuracy? Storage in a protective etui is recommended due to the very high accuracy class; Metav offers suitable cases to prevent damage and contamination of the polished stainless steel surface. Is the weight corrosion resistant? The polished stainless steel construction provides enhanced resistance to corrosion and surface wear, supporting long-term stability of the mass. Are dimensions and mass traceable for laboratory records? Dimensions (10 × 18 mm) and the nominal mass (10 g / 0.01 kg) are specified for documentation; for full traceability, use the weight as part of an accredited calibration chain. KERN — Germany — GTIN: 4045761002692
10 g Compact Test Weight OIML Class E2 Polished Stainless Steel, 0.06 mg Tolerance - KERN
Take advantage of the 10 g nominal mass, OIML Class E2 accuracy and polished stainless steel finish for reliable reference calibrations. Order the calibration weight directly via Metav Werkzeuge or consult our specialists for accessory recommendations and suitability for specific balances. KERN 316-04 — Calibration weight (OIML Class E2, 10 g, polished stainless steel) a KERN 316-04 calibration weight in compact form for precise verification and adjustment of analytical and precision balances OIML class E2 precision Nominal mass 10 g for calibration Polished stainless steel construction Compact, space-saving form Precise reference for laboratory and workshop calibration The OIML Class E2 designation combined with a tolerance of 0.06 mg makes this reference mass suitable for high-precision verifications. As a 10 g reference, it bridges the range between micro and standard weights, enabling measurement correction where small deviations matter. The tight tolerance reduces measurement uncertainty when used for balance adjustment, supporting reproducible results across routine checks and documented calibration procedures. Robust material and compact handling for everyday use Manufactured from polished stainless steel, the weight resists corrosion and is simple to keep clean, which helps maintain long-term stability. Its compact form reduces handling space on the workbench and aids careful placement on pans of analytical balances. The smooth finish and compact design also lower the risk of particulate adhesion and simplify routine inspections, contributing to reliable daily operation. Proven brand quality and application-ready delivery Made by KERN, the weight meets OIML classification requirements appropriate for calibration tasks in quality control, laboratory and service environments. The compact reference mass is supplied ready for use; due to the high accuracy class, a protective case is recommended for transport and storage to preserve the calibrated state. When integrated into a documented calibration routine, the reference mass supports traceable results and consistent instrument performance. Practical tips for use and maintenance Handle the reference weight with forceps or gloves to avoid fingerprint oils affecting mass values. Store the weight in its protective case between uses and keep it at a stable ambient temperature during measurements to reduce drift. Periodic verification against higher-level standards or accredited calibration services will confirm ongoing conformity with the 0.06 mg tolerance and ensure the reference mass remains fit for critical verification tasks. For specialist advice or to procure KERN calibration weights—including the 316-04—contact Metav Werkzeuge in Emmerich by email at info@metav-werkzeuge.com, by phone on +49 2822 7131930 or via WhatsApp at +49 170 2837271 for recommendations on cases and compatible accessories Technical data Article number: 316 SKU: 316-04 GTIN: 4045761094864 Manufacturer: KERN Core data Nominal mass: 10 g Mass (kg): 0.01 kg OIML tolerance: 0.06 mg Tariff number: 84239090 Special features Material: Polished stainless steel Form: Compact form OIML class: E2 Product category: Calibration/test weights Origin: DE Recommended: protective case FAQ What does OIML Class E2 mean for calibration tasks? OIML Class E2 indicates a high-precision classification; the KERN 316-04 reference mass meets the corresponding tolerance requirements, making it suitable for fine adjustments and verifications of analytical and precision balances. Is the 316-04 suitable for laboratory analytical balances? Yes. The 10 g nominal mass and the 0.06 mg tolerance of the KERN 316-04 are appropriate for use with analytical balances where Class E2 reference masses are required. How should the reference mass be handled to preserve accuracy? Handle the weight with gloves or forceps and store it in a protective case. The polished stainless steel finish of the KERN 316-04 simplifies cleaning and reduces contamination risk. Can the KERN 316-04 be used outdoors or in humid environments? The polished stainless steel material offers good resistance to corrosion, but for precision results the reference mass should be used in stable indoor conditions and stored dry in its case to maintain accuracy. Is a protective case necessary for this weight? Given the high accuracy class of the KERN 316-04, a protective case is recommended to prevent damage and preserve the calibrated state during transport and storage. KERN · Germany · GTIN: 4045761094864 · SKU: 316-04
10 g Precision Calibration Weight, Button Form, Polished Stainless Steel, OIML Class E2, 0.06 mg Tolerance - KERN
Benefit from the combination of laboratory-grade OIML E2 accuracy, a compact 10 g nominal value and a corrosion-resistant polished stainless steel finish for reliable calibration routines; order directly via Metav Werkzeuge or consult our advisors for tailored recommendations. KERN 317-04 Calibration weight – OIML Class E2, 10 g, polished stainless steel The KERN 317-04 is a single-button calibration weight designed for high-precision balance calibration and traceable mass checks in laboratory and quality-control environments. OIML class E2 accuracy Nominal value 10 g Polished stainless steel finish Tolerance ±0.06 mg Reliable reference for exact calibrations A calibration weight in OIML E2 delivers the precision required for fine-tuning analytical and precision balances. The 10 g nominal value combined with a laboratory-grade ±0.06 mg tolerance provides a stable reference mass for routine verification and instrument adjustment. Such specification supports traceable measurement chains and helps maintain compliance with internal quality procedures and external audit requirements. Using a weight of this class reduces uncertainty in small-mass calibrations and streamlines the verification workflow for quality teams. Compact, corrosion-resistant construction for everyday use Constructed from polished stainless steel in a classic button form, the mass offers mechanical robustness and resistance to corrosion in workshop and laboratory atmospheres. The compact geometry eases handling and storage while the smooth finish minimises contamination and simplifies cleaning. These attributes contribute to long-term mass stability and lower the need for frequent replacement, thus ensuring consistent calibration outcomes across repeated use. Practical guidance for conformity and storage For a weight of this accuracy, careful handling is essential: use tweezers or gloves to avoid oil or residue transfer, and store the mass in a protective case to preserve calibration. Note that the EC first marking of calibration weights will not be possible after 30.11.2025; a DAkkS calibration is recommended and is equivalent for most applications, providing documented traceability and certification suitable for regulated environments. Including a certified calibration step enhances the credibility of measurement results and supports quality documentation. Reliable sourcing and industry-ready service Sourced and supplied through a quality‑focused partner, customers benefit from a transparent supply chain and a broad selection of complementary accessories. Metav’s position as a precision partner combines decades of expertise with a comprehensive product range, enabling centralised procurement and dependable delivery to the workbench. That practical supply assurance is beneficial when integrating reference masses into regular calibration schedules or when standardising processes across multiple sites. For laboratory-grade calibration, choose the KERN 317-04 and request a DAkkS calibration via Metav Werkzeuge — our Emmerich team will advise on storage options and certification: info@metav-werkzeuge.com | +49 2822 7131930 Technical Data Article number: 317 SKU: 317-04 GTIN: 4045761003583 Manufacturer: KERN Origin: Germany Product type: Single calibration weight Shape: Button Material: Polished stainless steel OIML class: E2 Facts Nominal value: 10 g Mass in kg: 0.01 kg Tolerance (OIML): 0.06 mg Cylinder dimensions: 10×18 mm Tariff code: 84239090 eClass: 32120103 Special features Polished stainless steel finish Button form for easy handling Single weight, laboratory accuracy Recommend protective case for storage DAkkS calibration recommended Manufacturer country of origin: DE FAQ What does OIML class E2 signify for calibration tasks? OIML class E2 denotes a laboratory-grade level of accuracy suitable for calibrating analytical and precision balances; the KERN 317-04 meets this classification and provides the low uncertainty required for high-precision checks. Is a DAkkS calibration necessary for this weight? A DAkkS calibration is recommended for the KERN 317-04 and is equivalent for most applications, offering formal traceability and documented conformity, particularly important after the cessation of EC first marking from 30.11.2025. Which balances are appropriate to calibrate with this weight? Use this 10 g mass to verify and calibrate analytical balances, precision balances and other instruments that require laboratory-level reference masses within the E2 accuracy range. How should the weight be handled and stored to maintain accuracy? Handle the mass with tweezers or gloves to avoid contamination, keep it in a protective case when not in use and perform periodic calibration checks; these practices help preserve the KERN 317-04’s accuracy and surface condition. What is the practical impact of the ±0.06 mg tolerance? The ±0.06 mg tolerance defines the permissible deviation from the nominal mass, directly influencing measurement uncertainty during calibration; the KERN 317-04’s tight tolerance ensures precise adjustments and reliable verification results. Metav Werkzeuge, Emmerich am Rhein, Germany — Email: info@metav-werkzeuge.com | Phone: +49 2822 7131930 | WhatsApp: +49 170 2837271
10 g Precision Carrier Rod For Slotted Weights, OIML Class M1, Aluminium - KERN
Benefit from precise OIML M1 accuracy, a lightweight aluminium construction and a tapered hook that keeps slotted weights secure for efficient calibration workflows. Order the item directly via Metav Werkzeuge or consult our specialists for compatibility advice. KERN 347-445-100 Carrier Rod – OIML M1, Aluminium The KERN 347-445-100 is a carrier rod designed for attaching slotted weights during scale calibration and verification in laboratory and industrial environments OIML Class M1 accuracy Lightweight aluminium construction Tapered hook for easy weight engagement Compatible with Type A slot weights Reliable accuracy for routine calibration The carrier rod is specified to OIML Class M1, which guarantees a 2 mg tolerance on its 10 g nominal value and makes it suitable for demanding verification tasks where traceable results matter. The aluminium body ensures minimal influence on the balance while remaining robust for repeated use. This combination of certified accuracy and low self-weight supports reproducible calibration cycles and reduces adjustment time on precision scales. Designed for safe, efficient handling A tapered hook at the rod head facilitates quick mounting and removal of slotted weights, while retaining them securely during use to prevent accidental loss. The carrier features a maximum additional load capacity of 200 g (exclusive of the rod’s own weight), and accepts a largest single slot weight of 100 g, enabling flexible weight stacks for a wide range of calibration steps. This design reduces handling errors and speeds up verification procedures on bench and laboratory balances. Practical dimensions and material benefits With compact dimensions of 14 × 118 mm and an intrinsic weight of 10 g, the carrier rod fits standard weight holders without adding unnecessary mass. Aluminium offers a favourable strength-to-weight ratio and corrosion resistance for workshop conditions, making the rod a durable accessory for ongoing calibration programmes. The item’s compatibility with Type A slot weights ensures interoperability with established sets used across industry. Application recommendations and quality assurance The component is intended for use with slotted weight systems in professional metrology contexts and supports reliable traceable results when used within its stated limits. Manufactured in Germany and supplied under the KERN name, the rod aligns with professional calibration routines and is suitable for laboratories, calibration services and quality departments requiring repeatable measurement procedures. The clear load limits and certified tolerance aid compliance with internal quality standards. Contact Metav Werkzeuge in Emmerich for tailored advice on KERN calibration accessories and secure this aluminium carrier rod for reliable measurement routines Technical data Article number: 347-445-100 SKU: 347-445-100 GTIN: 4045761009158 Manufacturer: KERN Core technical data Nominal value: 10 g Tolerance: 2 mg (OIML Class M1) Own weight: 10 g Maximum additional load: 200 g (exclusive of own weight) Largest compatible slot weight: 100 g Dimensions: 14 × 118 mm Special features Material: Aluminium Compatible with Type A slot weights Tapered hook for easy engagement and secure retention Origin: DE FAQ How precise is this carrier rod for calibration work? The KERN 347-445-100 carrier rod is specified to OIML Class M1 with a 2 mg tolerance on the 10 g nominal value, making it suitable for precision calibration tasks that require traceable accuracy. Which weights can be used with this carrier rod? The rod is compatible with Type A slotted weights, accepts a largest single slot weight of 100 g and supports a total additional load of up to 200 g, exclusive of the rod’s own 10 g weight. Is the material suitable for workshop environments? Yes, the aluminium construction offers a favourable strength-to-weight ratio and corrosion resistance appropriate for laboratory and workshop use, ensuring durability in regular calibration routines. How does the tapered hook improve handling? The tapered hook simplifies mounting and removal of slotted weights while preventing accidental disengagement during measurement, reducing handling time and the risk of dropped weights. KERN, Germany • SKU 347-445-100 • GTIN 4045761009158
10 g Slotted Test Weight, OIML Class M1, Stainless Steel Turned, 2 mg Tolerance - KERN
Take advantage of the OIML Class M1 accuracy and the robust fine-turned stainless steel construction to ensure repeatable calibration results; the slotted Type A design provides secure mounting on carrier rods. Order the KERN slotted weight directly via Metav Werkzeuge or consult our specialists for application advice. Slotted weight 347-045 — 10 g, OIML Class M1 (KERN) A Slotted weight 347-045 designed for repeatable calibration of laboratory and industrial balances, featuring a Type A slotted form for secure stacking on carrier rods. OIML Class M1 accuracy 10 g nominal mass Fine-turned stainless steel Type A slotted design Reliable accuracy for routine calibrations The slotted reference mass delivers OIML Class M1 performance with a nominal value of 10 g and a specified tolerance of 2 mg, making it suitable for many routine calibration tasks where milligram-level reproducibility is required. This level of conformity supports measurement traceability and simplifies documentation for internal quality control. By selecting an appropriately classified reference mass, process consistency is improved and uncertainty budgets are easier to calculate. Robust material and secure Type A fitting Crafted from fine-turned stainless steel, the weight resists corrosion and maintains dimensional stability, reducing drift over time. The Type A slotted design permits secure placement on carrier rods and is compatible with standard slotted weight systems, which facilitates quick assembly during multi-mass calibration procedures. The solid machining finish also minimises surface contamination, easing cleaning and handling in laboratory and workshop environments. Practical handling and integration into workflows The compact, slotted single mass is optimised for ease of use within calibration stacks or on individual mounts. When used with tweezers or clean gloves, the mass preserves its nominal value and ensures traceability back to reference standards. Its compact footprint suits tight workspaces and portable calibration rigs, while the precise machining reduces the need for frequent corrective adjustments during day-to-day verification routines. Proven manufacturing and supply reliability Produced by KERN, the weight benefits from established metrology manufacturing practices that support consistent tolerances and long service life. Sourcing through Metav provides access to a broad range of compatible reference masses and accessories, backed by a logistics hub in Emmerich that acts as a quality filter for the European market. This procurement route reduces supplier complexity while maintaining access to calibrated metrology products. For expert ordering or technical guidance on application and compatibility, contact Metav Werkzeuge — Metav supplies high-precision calibration solutions including the KERN 347-045 and can advise on integration into existing calibration programmes; email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 347-045 Manufacturer: KERN GTIN: 4045761256286 Country of origin: DE Facts Nominal value: 10 g Mass (kg): 0.01 Tolerance: 2 mg Customs tariff number: 84239090 Special features Material: fine-turned stainless steel OIML class: M1 Design: Type A slotted weight Compatible with all slotted weights / carrier rods Type A FAQ What level of accuracy does this slotted weight provide? The KERN slotted weight 347-045 conforms to OIML Class M1, with a nominal value of 10 g and a tolerance of 2 mg, suitable for routine calibration and verification tasks. Is the weight compatible with standard carrier rods? Yes. The Type A slotted form is compatible with common slotted weights and carrier rods specified as Type A. What material is the weight made from and why does it matter? The mass is made from fine-turned stainless steel, which improves corrosion resistance and long-term dimensional stability, reducing changes in mass over time. How should the reference mass be handled and stored? Handle with tweezers or clean gloves and store in a dust-free case to maintain the nominal value; routine inspections and recalibration should follow the laboratory’s quality procedures for reference masses. Can this mass be used in both laboratory and workshop environments? Yes. The robust stainless-steel construction and compact slotted design make the weight suitable for controlled laboratory use as well as industrial verification where OIML M1 classification is accepted. KERN, Germany
10 g Test Weight Knob Stainless Steel Fine-Turned OIML Class F2, 0.6 mg Tolerance - KERN
Take advantage of precise OIML‑class performance and a fine‑turned stainless steel finish for dependable calibration cycles; the compact 10 g button design combines easy handling with laboratory-grade accuracy — order directly via Metav Werkzeuge or request specialist advice if required. KERN 337-04 Calibration Weight (10 g, OIML F2) – Fine‑turned Stainless Steel, Button Shape A KERN 337-04 calibration weight for accurate verification and routine calibration of precision balances and laboratory scales OIML class F2 accuracy Fine‑turned stainless steel surface Button shape for exact placement and handling Tolerance ±0.6 mg High precision that supports traceable measurement results The OIML F2 classification and the nominal 10 g mass deliver a balance between laboratory accuracy and practical usability for routine checks. An F2 tolerance of 0.6 mg means the test weight meets international limits for calibration work where small deviations matter; this reduces uncertainty when adjusting sensitive instruments. By choosing a verified test weight, calibration procedures become more efficient, ensuring measurement drift is identified quickly and corrective steps are implemented with confidence. The clear numeric specification supports documentation for quality systems and audit trails. Durable, fine‑turned stainless steel for repeatable handling Manufactured from fine‑turned stainless steel, this weight resists corrosion and retains its surface finish even with frequent handling and cleaning procedures. The button shape facilitates precise placement on pans and allows for secure gripping with tweezers or lifting tools, reducing the risk of transfer errors. These material and form characteristics contribute to long service life and consistent mass stability, which in turn minimises downtime from recalibration and supports uninterrupted production or laboratory workflows. Practical recommendations for use and storage to preserve accuracy To maintain long‑term performance, store the weight in a protective case and handle it with appropriate gloves or tweezers to avoid contamination and fingerprint oils that affect mass. A compact protective case is recommended for transport between measurement stations. Regular verification against higher‑class reference masses or accreditation checks will help preserve traceability. The robust construction and clear specification of this test weight make it a reliable component in quality control routines and a practical choice for metrology departments seeking reproducible results. Contact Metav Werkzeuge for tailored advice on integrating KERN calibration weights into calibration schedules and to secure supply from our Emmerich facility: info@metav-werkzeuge.com | +49 2822 7131930 Technical data Article number: 337 SKU: 337-04 GTIN: 4045761006348 Manufacturer: KERN Country of origin: DE Commodity code: 84239090 Core specifications Nominal mass: 10 g OIML class: F2 Tolerance: 0,6 mg Weight (kg): 0.01 Cylinder dimensions: 10×19 mm Special features Material: fine‑turned stainless steel Form: button shape Recommended: protective case for precise class preservation Application: calibration and verification of precision balances FAQ Is this weight suitable for laboratory balance calibration? Yes. The KERN 337-04 calibration weight is OIML class F2 and is suitable for verification and routine calibration of many precision laboratory balances where F2 accuracy is required. How precise is the 10 g test weight? The test weight has a tolerance of 0.6 mg in accordance with OIML F2 specifications, ensuring reproducible mass values for systematic calibration tasks. What material is used and how should it be cared for? The weight is made from fine‑turned stainless steel; clean carefully with a lint‑free cloth and handle with gloves or tweezers to avoid oils that alter mass. Should the weight be stored in a case? Yes. A protective case is recommended for the KERN 337-04 to prevent contamination and mechanical damage, preserving the calibrated condition. Can this weight be used for legal verification? The OIML F2 class indicates it is intended for accurate calibration and verification work; for legal metrology requirements, confirm the required class for the specific application or jurisdiction. Metav Werkzeuge, Emmerich am Rhein, Germany · info@metav-werkzeuge.com · +49 2822 7131930
10 kg Aluminium-Protected Case Padded For Block Weights, F1–M3 - KERN
Take advantage of a robust combination of lightweight aluminium protection and a padded interior that secures sensitive block calibration weights, keeping calibration routines reliable and damage risk low. The case's compatibility with block weights up to 10 kg and calibration classes F1–M3 supports consistent handling and storage practices. Order the aluminium-protected case directly via Metav Werkzeuge or ask the consultants if needed. Aluminium-protected case 346-070-600 by KERN — padded protection for block weights up to 10 kg The Aluminium-protected case 346-070-600 is a padded transport and storage case designed for block calibration weights, intended for secure handling and protected storage in calibration labs and workshops. Aluminium shell for secure protection Padded interior for sensitive weights Designed for block weights up to 10 kg Compatible with calibration classes F1–M3 Secure storage that protects calibration investments The hard aluminium outer shell is engineered to shield precision weights from impacts and abrasion during transport and storage, while the padded interior prevents localised pressure and scratching. This combination reduces the risk of accidental damage that can compromise traceability and repeatability, ensuring that calibration assets remain within tolerance longer. The protective design therefore supports efficient quality control processes and lowers the likelihood of costly recalibration or replacement. Suitable for calibration classes F1–M3 and block-format weights Built specifically for block weights and validated for calibration classes F1–M3, the case meets common requirements in metrology and workshop calibration routines. Using a dedicated storage solution helps retain the mass standard's condition and simplifies conformity during routine checks. For teams managing reference standards or performing on-site verifications, the documented compatibility with these classes makes the case a pragmatic choice for maintaining measurement integrity. Lightweight, compact and ready for daily workflows Weighing just 1.35 kg, the transport case is easy to carry and stow, integrating seamlessly into mobile calibration kits or fixed laboratory storage. Its compact footprint preserves bench and storage space while the robust construction supports repeated handling. The practical format contributes to smooth logistics, keeping calibration artefacts organised and accessible so that measuring processes remain efficient and downtime is minimised. For reliable protection of block calibration weights, request the KERN aluminium-protected case 346-070-600 via Metav Werkzeuge — Metav Werkzeuge is available at info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical data Article number: 346-070-600 Manufacturer: KERN GTIN: 4045761222885 Origin: CN Core specifications Weight: 1.35 kg Suitable for weights: up to 10 kg Calibration classes: F1–M3 Format: Block Materials & special features Material: Aluminium Interior: padded Design: for block weights Tariff number: 84239090 FAQ Is this case suitable for 10 kg block weights? Yes. The KERN aluminium-protected case 346-070-600 is designed for block weights up to 10 kg and accommodates the block format securely. Which calibration classes are supported? The case is specified for calibration classes F1–M3, making it suitable for a wide range of routine and laboratory-level mass standards. What material is the outer shell made from? The outer shell is made of aluminium, chosen for its combination of lightness and mechanical protection. Does the case include interior padding? Yes. The interior is padded, providing cushioning and a secure fit for sensitive calibration weights. What is the case weight and how portable is it? The empty case weighs 1.35 kg, offering a compact and portable solution for mobile calibration workflows. KERN — Origin: CN. Manufacturer contact not provided.
10 kg Aluminium-Protected Case Padded, For Single Weights E1–M3 - KERN
Take advantage of a robust combination of aluminium protection, a padded interior and suitability for single calibration weights up to 10 kg, ensuring safe transport and reliable storage of sensitive masses; order the KERN aluminium‑protected case directly via Metav Werkzeuge or consult our specialists for assistance. Aluminium-protected case for single weights KERN 317-140-600 — aluminium, padded The Aluminium-protected case for single weights offers secure storage and transport for calibration weights used in laboratories, workshops and service rounds. Aluminium shell with internal padding For single weights up to 10 kg Suitable for classes E1–M3 Protect equipment during transport and storage The rigid aluminium outer shell provides a lightweight yet durable barrier against knocks and compression, while the padded interior cushions each weight to prevent scratches and preserve calibration surfaces. This reduces the risk of damage during handling and transit and therefore helps to maintain the calibration integrity of measurement equipment. The result is fewer service interruptions and lower refurbishment needs for precision masses. Designed for precise weight sets and compliance Engineered for single calibration weights in the knob/compact form, the case accommodates nominal masses up to 10 kg and supports weights classified E1–M3, offering a compact solution for certified mass sets. The internal layout secures items in a fixed position, which minimises movement that could affect traceability or require re‑verification after transport. For workshops and calibration labs, this equates to dependable handling that supports compliance with measurement standards. Practical handling that saves time on the workshop floor Weighing approximately 1.4 kg, the case remains easily portable without compromising protective performance. The format and padding enable rapid packing and unpacking during calibration rounds, shortening setup time and increasing productive hours. The combination of secure transport and quick access makes this case a practical asset for technicians who value efficiency and safeguarding precision instruments. Contact Metav Werkzeuge today for advice on the KERN aluminium‑protected case 317-140-600 and arrange secure delivery from our Emmerich warehouse Technical data Article number: 317-140-600 SKU: 317-140-600 GTIN: 4045761136038 Manufacturer: KERN Material: Aluminium Origin country: CN Commodity code: 84239090 Case weight: 1.4 kg For weights: up to 10 kg For classes: E1–M3 Special feature: padded Facts Weight (case): 1.4 kg Nominal weight capacity: 10 kg Classification range: E1–M3 GTIN: 4045761136038 Commodity code: 84239090 eCl@ss: 21100103 Special features Aluminium-protected outer shell Padded interior for single weights (knob/compact) Designed for calibration and secure transport Suitable for professional laboratories and workshops Compact, lightweight construction FAQ What nominal weights fit this case? The case is suitable for single nominal weights up to 10 kg and is designed to hold knob/compact style masses securely. Is the case compatible with E1 calibration classes? Yes, the design accommodates weights classified across the range E1 to M3, supporting high‑accuracy sets. How does the padding protect calibration surfaces? The padded interior prevents direct contact and abrasion between weights, preserving the surface finish and reducing the need for re‑verification. Can the case be used for non‑standard or irregularly shaped weights? The internal layout is optimised for knob/compact shapes; irregular weights may not be held as securely without additional customised support. Where is the product manufactured? The aluminium‑protected case is produced in CN and supplied under the KERN brand. Metav Werkzeuge, Emmerich am Rhein — Email: info@metav-werkzeuge.com — Tel: +49 2822 7131930
10 kg Block Test Weight OIML Class M3 Painted Cast Iron, 5 g Tolerance - KERN
Benefit from a robust combination of OIML M3 conformity, a solid 10 kg nominal mass and a painted cast iron block design that supports consistent routine verification and easy handling. Order this calibration solution directly via Metav Werkzeuge or consult our specialists for tailored advice. KERN 366-87 Calibration Block Weight (OIML M3, 10 kg) The KERN 366-87 is a 10 kg OIML M3 calibration block weight designed for reliable routine verification of industrial and commercial scales. OIML class M3 accuracy 10 kg painted cast iron block Tolerance 5 g for consistent checks Ensure measurement conformity with certified class and mass The central benefit of a calibration weight in OIML M3 is predictable, repeatable verification for medium-accuracy weighing instruments. The specified tolerance 5 g at 10 kg provides a clear quantitative basis for acceptance limits during routine checks. For workshops and small calibration labs this block form delivers a stable reference mass, reducing uncertainty in everyday verification tasks and supporting compliance with inspection routines and quality procedures. Durable design for frequent handling and practical use A painted cast iron construction combines robustness and corrosion resistance for frequent use in industrial environments. The block design lowers the centre of gravity compared with slender weights, improving stability during placement and reducing the risk of tipping on scale pans. This design choice also simplifies storage and stacking, making the weight suitable for workshop benches where practical durability matters as much as metrological performance. Practical guidance for use and maintenance To preserve accuracy, handle the weight with care and store it in a clean, dry place; avoid impacts that could alter mass. The product is intended as a reference for routine verification rather than as a primary calibration standard for accredited laboratories. Traceable lab calibration is recommended when absolute legal traceability is required. The compact, solid construction supports straightforward day-to-day use, while its documented OIML M3 rating and nominal 10 kg mass make it a cost-effective component in a regular verification schedule. For specialist guidance on integrating the KERN 366-87 into verification routines, contact Metav Werkzeuge in Emmerich for expert, practice-oriented advice from our quality team Technical data Article number: 366 SKU: 366-87 Manufacturer: KERN GTIN: 4045761012004 Facts Nominal mass: 10 kg OIML class: M3 Tolerance (OIML): 5 g Tariff number: 84239090 Country of origin: CN Special features Material: painted cast iron Shape: block Product group: calibration weight ECLASS: 32120103 FAQ What accuracy class does this weight meet? The KERN 366-87 meets OIML M3 accuracy requirements and is specified with a tolerance of 5 g at its 10 kg nominal mass. Is the block suitable for routine workshop verification? Yes, the block form and painted cast iron construction of the KERN 366-87 make it suitable for regular verification tasks in workshops and small calibration facilities. Can the weight be used as a primary reference standard? The KERN 366-87 serves as a practical verification weight; for primary traceability or accredited calibrations, a laboratory-issued certificate and higher-class standards are recommended. How should the calibration weight be cared for to retain accuracy? Handle the KERN 366-87 carefully, avoid impacts, and store it clean and dry; regular visual inspection and professional recalibration ensure ongoing reliability. Does the product include certification or a calibration certificate? Calibration documentation is not specified for the KERN 366-87 in the provided data; for documented traceability, request calibration services or certificates through Metav Werkzeuge. KERN — address not provided — contact not provided
10 kg Block Test Weight OIML M2, Painted Cast Iron, 1.6 g Tolerance - KERN
Benefit from precise, cost-effective calibration and a robust painted cast-iron block design that keeps routine verification simple and repeatable; the OIML M2 classification and 1.6 g nominal tolerance support dependable scale adjustment. Order the ECO Block Weight 10 kg directly via Metav Werkzeuge or ask our consultants if needed. ECO Block Weight, Class M2 (10 kg) — KERN calibration weight The ECO Block Weight, Class M2 is a 10 kg calibration mass designed for routine verification and adjustment of industrial and laboratory scales, offering resilient construction for regular shop-floor use. OIML class M2 for routine verification Robust painted cast-iron block design Nominal mass 10 kg with 1.6 g tolerance Ensure consistent measurement results with certified mass accuracy The OIML M2 classification combined with a nominal mass of 10 kg and a stated tolerance of 1.6 g provides a reliable baseline for regular verification tasks. This level of accuracy is suited to many workshop and industrial weighing applications where reproducible readings are required rather than legal-for-trade primary standards. Using a certified mass reduces the risk of drift in production weighing processes and supports routine traceability when recorded in calibration logs. The clear numeric tolerance assists procurement and quality teams in comparing alternatives objectively. Built to withstand frequent handling while simplifying maintenance Constructed from painted cast iron, the block format delivers mechanical robustness for repeated handling in a busy workshop environment. The compact block shape allows straightforward placement on balance pans and stable contact with the weighing surface, helping to reduce handling error during calibration cycles. The painted finish offers surface protection against typical shop-floor wear, preserving mass integrity and appearance over time. As a simple, single-piece mass, this item requires minimal maintenance while delivering durable performance for everyday verification work. Streamline inventory and traceability within calibration workflows Identified by SKU 356-77 and GTIN 4045761241794, the mass integrates into asset registers and procurement systems for effortless tracking. The origin and tariff classification are available for logistics and customs: Origin: CN, HS tariff 84239090. Clear labelling and standard identifiers help maintenance and quality teams plan recalibration intervals, allocate assets to specific stations and compare measured deviations against the declared tolerance. Together, these attributes support efficient administration of weighing equipment and reduce downtime associated with uncertainty in measurement. For dependable shop-floor calibration supply and expert advice on integration, contact Metav Werkzeuge—email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss procurement and delivery options. Technical data Manufacturer: KERN SKU: 356-77 GTIN: 4045761241794 Article number: 356 Origin: CN HS tariff: 84239090 Facts Nominal mass: 10 kg Tolerance (OIML): 1.6 g OIML class: M2 Special features Material: painted cast iron Design: block mass for routine verification Suitable for industrial and laboratory scale checks FAQ What applications is this mass suitable for? This mass is intended for routine verification and adjustment of industrial and laboratory scales; the ECO Block Weight (Class M2, 10 kg) is appropriate where an OIML M2 level of accuracy meets process requirements. Does the mass come with standard identifiers for inventory? Yes, the KERN calibration mass is listed as SKU 356-77 with GTIN 4045761241794, enabling straightforward integration into asset registers and procurement systems. How should the mass be handled and stored to maintain accuracy? Handle the painted cast-iron block with clean hands or gloves, store on a stable shelf or in protective packaging, and avoid prolonged exposure to corrosive environments to preserve the surface and mass integrity. Can this mass be used for legal-for-trade calibrations? The ECO Block Weight is OIML Class M2 and is intended for routine verification; it is not a primary legal-for-trade reference standard typically required for the highest-accuracy statutory calibrations. KERN; Metav Werkzeuge (Emmerich am Rhein) — info@metav-werkzeuge.com — +49 2822 7131930
10 kg Block Weight OIML M2, Painted Cast Iron, 1.6 g Tolerance - KERN
Reliable mass verification with OIML class M2 accuracy and a defined tolerance of 1.6 g meets routine calibration requirements; the robust painted cast iron block construction ensures long service life and handling stability. Order the KERN 356-87 directly via Metav Werkzeuge or contact our consultants for further technical advice. KERN 356-87 — 10 kg calibration block weight, OIML class M2 The KERN 356-87 is a 10 kg block-style calibration weight designed for routine verification of industrial scales and workshop balances. OIML class M2 accuracy 10 kg nominal mass Cast iron, painted finish Robust block design for stable handling Proven accuracy for routine verification The 10 kg block provides OIML class M2 performance with a certified tolerance of 1.6 g, making it suitable for regular checks of workshop and industrial weighing equipment. The defined OIML specification offers a clear technical basis for conformity checks and reduces uncertainty when verifying load cells and platform scales. This level of accuracy supports efficient maintenance cycles and helps ensure compliance with operational calibration schedules. Durable construction for everyday use Manufactured from painted cast iron, the block design offers mechanical resilience and surface protection against workshop wear. The compact, single-weight format simplifies storage and handling while maintaining a stable centre of mass for repeatable results. This durability translates into a lower total cost of ownership through fewer replacements and reliable performance under routine operational stress. Easy integration into calibration workflows The block shape and nominal mass of 10 kg make the weight straightforward to use during in-house verification routines or as part of a set of reference masses. The specification suits industrial scales, counting scales and many workshop balances where an M2-class reference is appropriate. Clear technical parameters support decision-making when defining calibration intervals and traceability chains for quality management systems. Traceability and identification for inventory control The product is supplied by KERN and is identifiable by SKU 356-87 and GTIN 4045761248298, supporting inventory tracking and documentation. Country of origin and tariff code are recorded for logistical clarity. The combination of recognised manufacturer identification and measurable technical data aids record keeping and audit processes within production and quality departments. For a reliable supply of KERN calibration weights and personalised technical guidance, contact Metav Werkzeuge — request specification support or a procurement recommendation via info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 356 SKU: 356-87 GTIN: 4045761248298 Manufacturer: KERN Facts Nominal mass: 10 kg OIML class: M2 OIML tolerance: 1.6 g Material: Cast iron, painted Country of origin: CN Tariff code: 84239090 Special features Block design Single weight Category: Calibration weights / Test weights ECLASS: 32120103 FAQ What level of accuracy does this calibration weight provide? The KERN 356-87 is specified as OIML class M2 with an OIML tolerance of 1.6 g, providing defined accuracy for routine verification of industrial scales. Is the 10 kg block suitable for workshop use? Yes, the 10 kg block weight is designed for workshop and industrial environments; its painted cast iron construction offers robustness for regular handling and verification tasks. How is the weight identified for inventory and traceability? Identification is possible via SKU 356-87 and GTIN 4045761248298, which support stock control and traceability records for the KERN calibration weight. Can this weight be used for higher-precision laboratory balances? OIML class M2 is intended for routine industrial and workshop verification rather than high-precision laboratory calibration; select a higher OIML class for laboratory-grade traceability if required. Does the product include certification details? The KERN 356-87 is supplied with the technical parameters shown; for specific certification documents or calibration certificates, consult Metav Werkzeuge to confirm available documentation. KERN — Origin: China; Metav Werkzeuge, Emmerich am Rhein — info@metav-werkzeuge.com, +49 2822 7131930, WhatsApp +49 170 2837271
10 kg Calibration Block Weight OIML M1, Cast Iron Coated, 500 mg Tolerance - KERN
Take advantage of high accuracy, durable construction and simple compliance: the lacquered cast-iron block delivers stable mass reference with OIML M1 tolerance and a nominal 10 kg mass; order directly via Metav Werkzeuge or consult our specialists for application advice. Block calibration weight 346-87 — 10 kg, OIML M1 (KERN) The Block calibration weight 346-87 is a 10 kg OIML M1 cast-iron block designed for reliable verification and routine calibration of laboratory and industrial scales. Single calibration weight, OIML class M1 Nominal mass 10 kg with 500 mg tolerance Cast iron, lacquered surface for durability Consistent accuracy for routine verification A clearly defined OIML M1 classification and a nominal 10 kg mass ensure this reference weight supports regular verification tasks with measurable confidence. The stated tolerance of 500 mg corresponds to a deviation band of 0.5 g, making the component suitable where traceable mass standards are required for quality control. By supplying a stable reference value, the weight reduces the risk of measurement drift and supports compliance with internal procedures and third‑party audits. Robust construction for workshop and lab environments Manufactured from cast iron with a lacquered finish, the unit combines mechanical stability with surface protection. The block form factor provides a low centre of gravity and easy handling during placement on platforms, while the coating helps to resist minor corrosion and contamination in mixed‑use environments. This durability translates into fewer replacements and dependable repeatability over time, supporting uninterrupted production and service schedules. Simplified integration into calibration workflows As a single, standardised calibration item in OIML class M1, this block is straightforward to document within calibration logs and asset registers. The compact, block design facilitates storage and transport between test stations and reduces handling complexity during multi‑point verifications. When combined with a clear GTIN and SKU, traceability is improved and inventory management becomes more efficient for shops and laboratories that maintain calibrated instrument fleets. For secure and traceable measurements choose the KERN 346-87; contact Metav Werkzeuge in Emmerich for tailored technical advice at info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical Data Article number: T346-8-A SKU: 346-87 GTIN: 4045761241633 Manufacturer: KERN Tariff number: 84239090 Country of origin: CN Facts Nominal mass: 10 kg Tolerance (OIML): 500 mg OIML class: M1 eCl@ss: 32120103 Special features Material: Cast iron, lacquered Design: Block weight Product group: OIML M1 calibration weights Category: Calibration weights (Prüfgewichte) FAQ What accuracy can be expected from this weight? The KERN 346-87 is an OIML M1 calibration weight with a specified tolerance of 500 mg, which corresponds to a maximum allowable deviation of 0.5 g for a 10 kg nominal mass. Is this weight suitable for industrial scale verification? Yes; the block form and 10 kg nominal mass make it appropriate for routine verification of industrial and laboratory scales within the accuracy class covered by OIML M1. How should the calibration weight be stored to preserve accuracy? Store the block weight in a dry, temperature‑stable environment and avoid direct contact with corrosive substances; regular visual inspection and controlled handling help preserve the lacquered surface and measurement stability. Does the lacquered finish affect handling or measurements? The lacquered coating provides surface protection without altering the calibrated mass when handled correctly; normal cleaning and avoidance of heavy abrasion will maintain its condition. KERN — sold by Metav Werkzeuge, Emmerich am Rhein · Email: info@metav-werkzeuge.com · Phone: +49 2822 7131930
10 kg Calibration Weight Block Eco Painted Cast Iron, OIML Class M3, 5 g Tolerance - KERN
Take advantage of the combination of reliable accuracy, robust cast-iron construction and a compact block design for straightforward calibration workflows. Order the calibration weight directly via Metav Werkzeuge or consult the Metav team for specification advice. ECO block weight — Calibration weight, OIML Class M3 (KERN) The ECO block weight is a cast-iron calibration weight designed for routine checks and adjustment of industrial balances and workshop scales OIML Class M3 for routine calibration Nominal value 10 kg for heavy-duty scales Painted cast iron for robust handling Compact block design for stable placement Consistent conformity for routine calibration tasks The ECO block weight meets OIML Class M3, offering a clear specification for routine calibration and in-house checks. The declared tolerance 5 g provides a predictable margin for adjustment tasks and comparative measurements, enabling traceable calibration procedures without unnecessary complexity. Compliance with this classification supports consistent measurement chains in production environments and helps operators maintain documented accuracy for quality control processes. Durable construction that reduces handling risk Manufactured from painted cast iron, the block design delivers mechanical resilience and a reliable contact surface for placement on balance pans. The robust finish protects against surface wear during regular use in workshops, while the compact geometry helps prevent unintended rolling or misplacement. These characteristics minimise handling errors and downtime, contributing to a smoother metrological routine and lower replacement frequency compared with more delicate masses. Practical use and straightforward care As a single-piece calibration weight, the unit is intended for direct placement on balances and scales for verification and adjustment. The solid block shape ensures stable seating and repeatable results. For best long-term performance, maintain a clean, dry storage environment, avoid strong impacts and inspect the mass before critical measurements. Regular recalibration by an accredited laboratory will preserve traceability and measurement reliability over the service life. Reliable supply and procurement for workshops and shops Sourcing the block from a recognised manufacturer such as KERN and distributing it through Metav Werkzeuge guarantees a pragmatic balance between cost and functionality. Metav’s role as a quality filter for the European market, combined with an extensive product range and a long track record of satisfied customers, supports dependable procurement and a clear logistics path from stock to workshop bench. Contact Metav Werkzeuge to discuss the suitability of this KERN calibration weight (SKU 366-77) for specific applications or to request a procurement proposal — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 366-77 Manufacturer: KERN GTIN: 4045761241831 Country of origin: China Tariff number: 84239090 Facts Nominal weight: 10 kg Tolerance: 5 g OIML class: M3 Materials & features Material: painted cast iron Design: ECO block Application: calibration and routine verification of balances and scales Format: single calibration mass FAQ What does OIML Class M3 indicate for this calibration weight? OIML Class M3 denotes the accuracy classification applicable to the ECO block weight; the KERN block (SKU 366-77) is therefore intended for routine calibration and adjustment rather than the highest-precision laboratory reference. Is this weight suitable for industrial scale checks? Yes, the 10 kg block is suitable for routine checks and adjustment of industrial and workshop scales where OIML Class M3 accuracy is appropriate. How precise is the 10 kg specification? The 10 kg nominal value for this calibration mass carries a tolerance of 5 g, meaning deviations within that range are within the stated specification for M3 class items. How should the calibration weight be stored to maintain accuracy? Store the painted cast-iron block dry and protected from corrosive environments, avoid shocks, and clean with a soft cloth; periodic verification or recalibration preserves measurement traceability. Can this be used for legal-for-trade verification? Use for legal-for-trade verification depends on local statutory requirements; the KERN ECO block weight in OIML Class M3 is typically used for internal checks and routine calibration—confirm national regulations if legal verification is required. KERN — China
10 kg Calibration Weight Block OIML F2 Stainless Steel Bead-Blasted, 160 mg Tolerance - KERN
Benefit from the combination of precise OIML F2 accuracy, a robust stainless‑steel block form and clear calibration guidance for consistent measurement results. Order the calibration weight directly via Metav Werkzeuge or consult our advisors for application-specific recommendations. KERN 336-37 Calibration weight — 10 kg, OIML F2 The KERN 336-37 calibration weight is a single, block‑style reference mass for calibrating balances and scales in industrial and laboratory environments OIML class F2 accuracy, 160 mg tolerance Solid stainless‑steel block design Nominal value 10 kg for balance calibration Glass‑bead blasted finish for corrosion resistance Accurate reference mass for repeatable calibration routines The OIML F2 classification and a tolerance of 160 mg at the 10 kg nominal value provide a dependable baseline for mid‑range balance verification. As a calibrated reference mass, this block supports traceable calibration procedures and reduces measurement uncertainty during routine checks. The combination of class specification and measurable tolerance means fewer rechecks and improved process reliability when aligning production or laboratory weighing equipment. Robust construction that withstands workshop handling Manufactured from stainless steel with a glass‑bead blasted surface, the block delivers long‑term dimensional and mass stability under normal workshop conditions. The compact block format ensures stable placement on weighing pans and simplifies handling compared with cylindrical designs. The KERN 336-37 benefits from corrosion‑resistant finishing, which helps maintain surface integrity and mass constancy over time; for transport and storage, a protective case is strongly recommended to preserve accuracy. Compliance and calibration advice for assured traceability This single‑weight solution meets OIML requirements for a reliable calibration reference and is ideal for workflows where documented traceability matters. Note that EC first verification will no longer be possible from 30 November 2025; a DAkkS calibration is the advised alternative to secure official traceability for most applications. Selecting a DAkkS‑calibrated reference mass ensures conformity with statutory and quality‑management demands while supporting consistent measurement performance. Contact Metav Werkzeuge in Emmerich for specification advice, DAkkS calibration options and accessory recommendations for the KERN 336-37 calibration weight Technical Data Article number: 336 SKU: 336-37 Manufacturer: KERN GTIN: 4045761232815 Tariff number: 84239090 Core technical data Nominal mass: 10 kg OIML class: F2 Tolerance: 160 mg ECLASS: 32120103 Special features Block design Single weight Material: stainless steel, glass‑bead blasted Country of origin: Germany Recommendation: protective case; DAkkS calibration advised FAQ What accuracy class does this calibration weight comply with? The KERN 336-37 calibration weight complies with OIML F2 and carries a tolerance of 160 mg for the 10 kg nominal mass, making it suitable as a reference mass in many industrial and laboratory calibration scenarios. Is this weight suitable for both laboratory balances and industrial scales? Yes, the 10 kg nominal value and F2 classification make the block appropriate for mid‑range laboratory balances and industrial weighing equipment where an F2 reference mass is specified. Does the weight require special handling or storage? Due to the high accuracy class, a protective case is recommended to prevent contamination and mechanical damage; Metav Werkzeuge offers suitable etuis in the accessories section for secure transport and storage. Can this weight still receive EC first verification? EC first verification will no longer be possible from 30 November 2025; for traceable conformity, a DAkkS calibration is recommended for the KERN 336-37. Metav Werkzeuge, Emmerich am Rhein — Email: info@metav-werkzeuge.com — Phone: +49 2822 7131930 — WhatsApp: +49 170 2837271
10 kg Calibration Weight Block Polished Stainless Steel OIML Class F1, 50 mg Tolerance - KERN
Take advantage of proven traceability and robust construction combined with simple handling for reliable balance verification. The polished stainless-steel block design and OIML Class F1 accuracy ensure repeatable mass values; order directly via Metav Werkzeuge or consult our specialists for calibration and accessory recommendations. KERN 326-37 block calibration weight (OIML Class F1, 10 kg) The KERN 326-37 is a precision calibration weight in a knob-shaped block, designed for verification of laboratory and industrial balances with high repeatability OIML class F1 accuracy 10 kg nominal mass Polished stainless steel finish Knob-shaped block for easy handling Consistent results through certified accuracy The calibrated block offers OIML Class F1 performance with a nominal mass of 10 kg and a specified tolerance of 50 mg, which supports reproducible verification routines for mid-range balances. The tight tolerance reduces measurement uncertainty during routine checks and helps maintain production quality. The specification is suitable for laboratory and industrial verification tasks where mid-level precision is required and where documented mass values contribute to traceability. Robust material and ergonomic design for daily use Constructed from polished stainless steel, the block resists corrosion and can be cleaned without affecting the mass surface, reducing maintenance effort and extending service life. The knob-shaped geometry improves handling during calibration cycles, lowering the risk of slips and accidental surface contact that might alter the mass. The compact block design also minimises footprint in storage and work areas, while the polished finish helps to avoid particulate build-up that could influence repeated comparisons. Compliance, calibration and recommended accessories With the approaching change in marking procedures, the product data notes that initial EU-type approvals will not be available after 30 November 2025; a DAkkS calibration is therefore recommended for traceable certification equivalent for most applications. For storage and transport, a protective case is advised to preserve accuracy and prevent handling marks. When documented traceability and official calibration certificates are required, choose accredited calibration options to ensure the mass values meet organisational and regulatory demands. Contact Metav Werkzeuge in Emmerich for advice on DAkkS calibration, accessory cases and procurement of the KERN 326-37 calibration weight via info@metav-werkzeuge.com or +49 2822 7131930 Technical Data SKU: 326-37 GTIN: 4045761232860 Manufacturer: KERN Origin: Germany Form: Knob-shaped block Facts Nominal mass: 10 kg OIML class: F1 Tolerance: 50 mg Tariff code: 84239090 Special features Polished stainless steel Knob-shaped block design Recommended protective case for transport and storage Suitable for verification of laboratory and industrial balances DAkkS calibration recommended FAQ What level of accuracy does this weight provide? The KERN 326-37 calibration weight meets OIML Class F1 with a tolerance of 50 mg, making it suitable for reproducible balance verifications and mid-level precision checks. Is the material suitable for workshop environments? Yes, the polished stainless-steel construction resists corrosion and is suitable for both laboratory and industrial environments where routine cleaning and durability are required. Should the weight be calibrated before first use? A DAkkS calibration is recommended to obtain traceable certification; this aligns the KERN 326-37 with documented measurement systems and regulatory needs. How should the weight be handled to preserve accuracy? Handle the knob-shaped block by the designated grip, avoid touching the mass surfaces, and store in a protective case to prevent surface damage that could affect the mass value. Can this weight be used for legal-for-trade approval? The weight is specified to OIML Class F1; note that initial EU-type approval processes change from 30 November 2025, so DAkkS calibration is advised for equivalent traceability in most applications. KERN, Germany – contact details not provided in product data
10 kg Calibration Weight Block Stainless Steel, OIML Class M1, 500 mg Tolerance - KERN
Take advantage of the combination of OIML Class M1 accuracy, a robust 10 kg stainless steel block and a fine 500 mg tolerance for reliable verification of scales and balances; order the KERN 346-07 directly via Metav Werkzeuge or contact our consultants for advice and DAkkS calibration. KERN 346-07 — Calibration weight, OIML Class M1, 10 kg stainless steel block The KERN 346-07 is a 10 kg OIML M1 block calibration weight designed for laboratory and industrial scale verification. OIML class M1 calibration accuracy 10 kg nominal mass for scale verification Shot‑blasted stainless steel block design Precision where measurement certainty matters A calibration mass in OIML Class M1 provides defined limits of permissible error, here 500 mg, which establishes a clear baseline for test and verification routines. This level of accuracy reduces measurement uncertainty during routine checks and acceptance tests. The specified 10 kg nominal mass makes the unit suitable for mid‑range balances and industrial scales, enabling consistent, repeatable results and supporting quality assurance processes. Robust construction for regular workshop and lab use The block form, manufactured from stainless steel with a glass‑bead blasted finish, is engineered for frequent handling and minimal surface contamination. The compact block shape offers stable seating on weighing pans and a low centre of gravity, which simplifies placement and reduces the risk of tipping. The corrosion‑resistant finish and German manufacture contribute to long service life and dependable physical integrity in mixed workshop and laboratory environments. Clear technical meaning and calibration guidance Tolerance figures such as 500 mg indicate the permissible deviation from the nominal mass and are used when assessing whether a scale falls within its required performance limits. For legally traceable verification, a DAkkS calibration is recommended; note that EG type approval for calibration weights will not be possible after 30.11.2025. A DAkkS certificate provides documented traceability to national standards and is accepted for almost all practical calibration needs in industry and commerce. Practical handling and integration into workflows For accurate results, handle the standard with clean, dry gloves and store it in a stable, dust‑free environment when not in use to preserve mass integrity. Incorporate the weight into regular verification schedules and calibration logs to ensure documented traceability and to support internal quality audits. The compact block design eases transport between workstations while maintaining robustness for routine industrial use. For traceable verification with KERN quality, request DAkkS calibration and procure through Metav Werkzeuge in Emmerich — our specialists advise on specification, certification and delivery Technical data Article number: 346 Manufacturer: KERN SKU: 346-07 GTIN: 4045761117136 Facts Nominal mass: 10 kg OIML class: M1 Tolerance: 500 mg Tariff code: 84239090 Special features Block design Material: stainless steel, glass‑bead blasted Origin: Germany Recommended: DAkkS calibration; EG type approval not possible after 30.11.2025 FAQ What level of accuracy does this weight provide? The KERN 346-07 is manufactured to OIML Class M1 specifications with a tolerance of 500 mg, making it suitable for verification of mid‑range balances and industrial scales. Is DAkkS calibration available for this calibration weight? Yes, DAkkS calibration is recommended for the KERN 346-07 and provides full traceability to national standards; this is advised especially since EG type approval will be discontinued after 30.11.2025. Can the weight be used in workshop environments? The shot‑blasted stainless steel block construction of the KERN 346-07 is designed for regular workshop and laboratory handling and offers good resistance to contamination and wear. How should the weight be stored to maintain accuracy? Store the KERN 346-07 in a clean, dry place and handle with gloves to prevent oils and residues from affecting its mass; regular recalibration should be scheduled according to internal quality procedures. What applications are typical for a 10 kg M1 calibration weight? A 10 kg M1 standard like the KERN 346-07 is commonly used for routine verification, performance checks and adjustment of industrial scales and larger laboratory balances. Metav Werkzeuge — Emmerich am Rhein, Germany · eMail: info@metav-werkzeuge.com · Tel: +49 2822 7131930 · WhatsApp: +49 170 2837271
10 kg Calibration Weight Button Shape Fine-Turned Stainless Steel, OIML M2 - KERN
Take advantage of the combination of OIML class M2 accuracy, a robust 10 kg nominal mass and a secure knob shape for safe handling; order directly via Metav Werkzeuge or consult our specialists for seamless integration into calibration routines. KERN 357-14 single calibration weight — 10 kg, OIML Class M2, stainless steel The KERN 357-14 single calibration weight is a precision reference mass for laboratory and industrial scale verification, presented in a knob form for safe handling. OIML class M2 accuracy 10 kg nominal mass Finely turned stainless steel surface Knob form for secure handling Precision where verification counts The OIML Class M2 designation signals that this weight is suitable for routine calibration and verification tasks in industrial and laboratory environments. As a 10 kg nominal mass, it functions as a stable reference during comparative checks of scales and balances, helping to maintain measurement consistency across production and inspection processes. By using a standardised reference mass, measurement uncertainty is reduced and error sources are easier to identify, supporting efficient decision-making in quality control. Built for reliable handling and long-term stability Manufactured from finely turned stainless steel, the weight resists corrosion and is straightforward to clean, which preserves measurement reliability over repeated use. The knob form provides a firm grip for safe placement and removal from balances, reducing the risk of accidental knocks that can alter calibration. The compact design and smooth finish lower the likelihood of contamination transfer, making the unit a durable component of daily verification routines and minimising operational interruptions. Seamless integration into quality processes This single calibration mass fits directly into routine checking procedures and helps to standardise verification across multiple workstations. As a robust reference, it contributes to faster fault detection and fewer measurement-related reworks. Procurement via Metav Werkzeuge provides access to a broad range of complementary reference standards and a consistent supply chain from Emmerich am Rhein, supporting centralised inventory management and dependable replenishment when building or consolidating a calibration kit. Contact Metav Werkzeuge in Emmerich for tailored advice on integrating the KERN 357-14 into existing verification routines — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical Data Article number: 357 SKU: 357-14 Manufacturer: KERN Facts Nominal mass: 10 kg OIML class: M2 Special features Material: finely turned stainless steel Shape: knob form Product type: single calibration weight FAQ What does OIML class M2 mean for everyday calibration work? OIML class M2 indicates that the weight meets internationally recognised tolerances appropriate for routine calibration and verification of industrial and laboratory scales; the KERN 357-14 single calibration weight is designed for such repeat checks. Can this weight be used on precision laboratory balances? Yes, the 10 kg nominal mass of the KERN 357-14 is suitable as a reference for comparative verification on appropriate balances and scales, taking into account the instrument’s specified capacity and recommended test mass ranges. How should the weight be handled and stored to preserve accuracy? Handle the stainless steel knob with clean gloves or use tweezers where practicable, and store the weight in a dry, dust-free case; following these measures helps keep the 357-14 within expected performance between verifications. Is special cleaning required for the stainless steel finish? Routine cleaning with a soft, lint-free cloth and a mild, non-abrasive cleaner preserves the finely turned stainless steel surface of the KERN 357-14 and prevents contamination that could affect repeatability. Does the product come with identification markings or SKU references? The single calibration weight is supplied as the KERN 357-14 (SKU 357-14), which serves as the reference identifier for ordering and inventory management. Metav Werkzeuge, Emmerich am Rhein — info@metav-werkzeuge.com — +49 2822 7131930 — WhatsApp +49 170 2837271
10 kg Calibration Weight Knob And Cylinder Form OIML Class M3, Painted Cast Iron, 5 g Tolerance - KERN
Benefit from precise OIML M3 accuracy, robust painted cast iron construction and a practical knob for safe handling — ideal for routine verification of industrial scales. Order the calibration weight directly via Metav Werkzeuge or consult our specialists for application advice. KERN 366-97 Calibration Weight (OIML M3, 10 kg) — Painted Cast Iron, Knob & Cylinder A KERN 366-97 calibration weight designed for traceable verification of industrial and workshop balances, supplied in a knob-and-cylinder shape for reliable handling. OIML M3 calibration class Nominal value 10 kg Painted cast iron construction Knob for secure handling Accurate class compliance for routine verification The OIML M3 classification provides a recognised balance between cost and metrological reliability, making this weight suitable for periodic checking of floor and industrial scales. With a nominal value of 10 kg and an OIML tolerance of 5 g, the mass can be integrated into regular control procedures to document repeatable results. The clarified class designation supports compliance protocols and internal quality records without over‑specification for non‑calibration-laboratory environments. Robust construction that reduces handling risk Manufactured from painted cast iron, the weight resists surface wear and offers long service life in workshop conditions. The knob-and-cylinder form prevents slippage during placement, speeding up repetitive checks and lowering the risk of accidental drops. The solid construction also simplifies storage and routine maintenance: light cleaning and careful handling preserve the protective coating and the stated tolerance over many cycles. Practical dimensions and traceable identification Compact dimensions of 121×193 mm for the cylinder shape allow straightforward use on large balances and weighing platforms where space is constrained. Clear identification via the SKU and GTIN ensures traceability in inventory systems and calibration logs, while the origin (Germany) signals established manufacturing practices. Together, these aspects support efficient workshop workflows and make integration into existing verification routines straightforward. Reliability for workshop and industrial environments The single‑weight design is optimised for frequent use on industrial scales, offering a pragmatic combination of durability and metrological performance. The painted finish reduces corrosion risk in standard ambient conditions, while the knob simplifies lifting and placement — features that contribute to fewer interruptions in production and quicker verification cycles. Confidence in routine checks is a practical advantage for quality-conscious operations. Contact Metav Werkzeuge for application guidance or to order the KERN 366-97 calibration weight directly — specialists in precision tools from Emmerich with supply certainty for industry and trade. Technical data Article number: 366 SKU: 366-97 GTIN: 4045761012165 Manufacturer: KERN Origin: Germany Material: Painted cast iron OIML class: M3 Form: Knob and cylinder Commodity code: 84239090 Facts Nominal value: 10 kg Tolerance (OIML): 5 g Dimensions (cylinder): 121×193 mm Special features Single weight Painted cast iron finish Knob for secure handling OIML M3 compliance FAQ Is this weight suitable for routine verification of industrial floor scales? Yes, the KERN 366-97 calibration weight (OIML M3, 10 kg) is intended for routine verification tasks on industrial and workshop scales where an M3 class weight meets operational requirements. How precise is the KERN 366-97 and what does the tolerance mean? The stated tolerance of 5 g (OIML M3) indicates the permissible deviation for the 10 kg nominal mass and is appropriate for regular control checks rather than primary laboratory calibrations. What maintenance is required to preserve the weight's accuracy? Regular visual inspection and light cleaning of the painted cast iron surface are recommended; avoid abrasive cleaners and impacts to the knob or cylindrical surfaces to maintain the specified tolerance. Can the weight be used on small bench balances? While physically usable on some large bench balances, the 10 kg nominal mass and cylinder dimensions make it most practical for floor and industrial scales rather than precision laboratory balances. Does the product include traceability documentation? The KERN 366-97 is identified by SKU and GTIN for inventory and traceability; certification or calibration certificates must be requested separately if required for accredited calibration records. Metav Werkzeuge, Emmerich am Rhein, Germany · info@metav-werkzeuge.com · +49 2822 7131930
10 kg Calibration Weight Three-Point Button, OIML F1, Polished Stainless Steel, 50 mg Tolerance - KERN
Take advantage of the combination of precision, durable polished stainless steel and class-leading accuracy for dependable calibration results; order the single 10 kg calibration weight directly via Metav Werkzeuge or ask our consultants if needed. KERN 327-14 – Single OIML F1 10 kg calibration weight with knob, polished stainless steel The KERN 327-14 is a single calibration weight designed for laboratory and industrial scale verification, supplied in knob form and finished in polished stainless steel for durable, repeatable use. OIML Class F1 accuracy Nominal value 10 kg Polished stainless steel construction Knob form for secure placement Consistent accuracy for routine verification The OIML F1 classification and a nominal value of 10 kg mean this calibration weight is intended where precise reference masses are required for routine checks and instrument verification. The declared tolerance of 50 mg (0.05 g) defines the permissible deviation and helps to calculate measurement uncertainty when adjusting or checking balances. Using a reference mass with known, certified limits reduces downtime during calibration cycles and supports quicker decision-making in quality control processes. The technical specification provides a measurable basis for conformity with internal and external metrology procedures. Designed for safe handling and long service life A knob-shaped head simplifies handling on precision balances and reduces the risk of fingerprints or contamination affecting readings; the polished stainless steel finish assists in cleaning and resists corrosion in normal workshop environments. The form factor facilitates exact placement on pans and minimises lateral movement during weighing operations. Given the high accuracy class, a protective case is recommended to preserve the surface and the mass value during storage and transport. Note that the EC initial verification of test weights will no longer be possible from 30 November 2025; a DAkkS calibration is therefore recommended for traceable results and is accepted for most calibration workflows. Built for traceability and robust workflows Manufactured to meet professional metrology expectations and marked with clear identifiers, this single reference mass supports documented traceability within production and laboratory settings. The stainless construction and compact design contribute to stable long-term behaviour, reducing the frequency of adjustments and preserving calibration intervals. Origin information and classification assist in maintaining audit trails and compliance records. When integrated into a scheduled verification plan, the weight helps to maintain measurement reliability across process-critical scales and balances. For traceable calibration and expert advice on the KERN 327-14, contact Metav Werkzeuge in Emmerich for DAkkS calibration options, case recommendations and immediate ordering via info@metav-werkzeuge.com or +49 2822 7131930 (WhatsApp +49 170 2837271) Technical data Article number: 327 SKU: 327-14 GTIN: 4045761004849 Manufacturer: KERN Country of origin: DE Commodity code: 84239090 Facts OIML class: F1 Nominal value: 10 kg Tolerance: 50 mg Cylinder dimensions: 100 × 185 mm Special features Material: Polished stainless steel Form: Knob form Product type: Single calibration weight Recommendation: Protective case recommended due to high accuracy class Eclass: 32120103 FAQ What accuracy class does this calibration weight have? The KERN 327-14 is classified as OIML F1, providing the high precision required for many laboratory and industrial verification tasks. Is a protective case necessary for this reference mass? A protective case is recommended for the 10 kg single weight to preserve the polished stainless steel surface and to maintain the declared tolerance during storage and transport. Can the weight be used for legal-for-trade verifications? The KERN 327-14 is an OIML F1 reference mass; note that EC initial verification will not be possible from 30 November 2025, and a DAkkS calibration is suggested for traceability and most calibration needs. What is the nominal tolerance and how does it affect measurements? The declared tolerance is 50 mg; this determines the allowable deviation and is used to calculate measurement uncertainty when verifying or adjusting balances. Which materials and form factor are specified for ease of use? The weight is made of polished stainless steel in a knob form, which improves handling during placement and cleaning in routine calibration procedures. Metav Werkzeuge GmbH, Emmerich am Rhein · Email: info@metav-werkzeuge.com · Phone: +49 2822 7131930 · WhatsApp: +49 170 2837271
Ensure measurement reliability with certified test weights
Test weights are defined mass artefacts used to verify, adjust and document the performance of scales across production, laboratory and quality assurance environments. They provide the objective reference needed to confirm accuracy, repeatability and process reliability where documented results matter.
How test weights work and where they matter
Test weights serve as traceable references with fixed nominal values — for example 1 g, 100 g, 1 kg or 20 kg — and are manufactured to specific accuracy classes so that permitted deviations are known and comparable. In practice they are used to check a scale’s reading at one or several points within its range, to distinguish between calibration (checking and documenting deviation) and adjustment (setting the scale to read correctly). Typical situations include routine production checks, audit-prepared quality control, laboratory validation and fault-finding when instability, vibration or environmental factors affect readings.
Immediate performance gains for production and quality assurance
- increase measurement confidence by using weights matched to the application and scale resolution
- reduce downtime and troubleshooting time through systematic multi-point checks (lower, mid, upper range)
- protect process validity by choosing the correct accuracy class: E1, E2, F1, F2, M1, M2, M3
- limit handling-related error: use tweezers for small weights and clean gloves for larger items
- extend usable lifetime through disciplined storage in protective cases and regular control or recalibration
Why KERN & Sohn is the premium choice and how Metav supports you
KERN & Sohn brings a long heritage in precision weighing and measuring technology, offering extensive product ranges and services such as DAkkS-accredited calibration. Metav supplies these solutions with a practical focus: democratising precision by making traceable measuring tools available to workshops and specialist buyers across Europe. With over 48,000 customers, more than 250,000 products and a logistics and quality filter based in Emmerich, Metav combines specialist selection with dependable supply for industry and trade.
Technical data at a glance
- nominal values: 1 g, 100 g, 1 kg, 20 kg
- accuracy classes: E1, E2, F1, F2, M1, M2, M3
- typical applications: quality assurance; production; laboratory
- handling: tweezers for small weights; clean gloves for larger weights
- storage: protective case; dust-free environment
- check routine: lower, middle, upper range
- purpose: calibration (check & document); adjustment (set scale)
FAQ
What exactly are test weights?
Test weights are defined mass artefacts with fixed nominal values that are used to check, adjust or document scale performance within quality assurance and calibration workflows.
Which accuracy classes are available and when should I use them?
Accuracy classes range from E1/E2 for the highest demands, through F1/F2 for precise everyday applications, to M1–M3 for robust industrial or platform scales. Select the class that matches the required measurement uncertainty and the operating environment.
How often should I check my scale with test weights?
Frequency depends on the criticality of the process: critical operations often require daily or per-shift checks, while less critical applications may use weekly or monthly intervals; always check after location changes or suspect readings.
Why must test weights not be touched with bare hands?
Skin oils and moisture alter surface mass and can introduce measurable errors, especially for small nominal values. Use tweezers or clean gloves to maintain traceability and reliability.
What is the practical difference between calibration and adjustment when using test weights?
Calibration documents how far a scale deviates from the nominal value; adjustment actively corrects the scale to bring it back into tolerance. Both processes make use of test weights but serve different quality objectives.
Metav and KERN & Sohn provide the products, documentation and calibration pathways to integrate test weights into routine quality assurance — ensuring your measurements remain verifiable, repeatable and audit-ready.
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