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.
50 kg Calibration Weight Block Stainless Steel Satin‑Shot Blasted OIML Class F2, 800 mg Tolerance - KERN
Take advantage of the combination of OIML class F2 accuracy, a robust stainless steel block design and the recommended DAkkS calibration to ensure traceable, repeatable results in routine and lab calibrations. Order the device directly via Metav Werkzeuge or ask our consultants for advice on accessories and calibration options. KERN 336-39 Block Weight (OIML F2, 50 kg, Stainless Steel) The KERN 336-39 is a precision block weight in OIML class F2, intended as a reference mass for calibration and verification of industrial and laboratory scales OIML class F2 accuracy 50 kg nominal value Stainless steel, glass‑bead blasted Consistent reference mass for reliable measurements A certified reference mass in OIML class F2 provides a defined level of maximum permissible error, offering users a solid basis for instrument verification. The 50 kg nominal value and tolerance 800 mg mean this block weight is suited to mid-range balances where repeatability and traceability are required. Using a weight of this specification reduces measurement uncertainty and supports documented quality processes; the numeric tolerance allows quick comparison against balance deviations and helps maintain production consistency. Robust construction to withstand workshop conditions Manufactured from stainless steel with a glass‑bead blasted finish, the block form delivers mechanical stability and a surface that resists corrosion and handling marks. The compact block geometry aids easy placement on platens and minimises rocking or uneven contact, which is important for accurate transfers of mass. This combination of material and finish simplifies cleaning and preserves the calibration state over time, reducing the frequency of corrective recalibrations and supporting continuous operation. Clear calibration path and safe storage recommendations For long‑term traceability, a DAkkS calibration is recommended; note that EG initial verification for weights will not be possible after 30 November 2025, so planning calibration routes is essential. The weight is supplied as a single weight in block form and, given the precision class, storage in a protective case is advised to avoid surface contamination and accidental mass changes. Handling precautions—such as using clean gloves and avoiding direct contact with the measuring face—help retain the declared metrological properties and extend the useful service life of the reference mass. Contact Metav Werkzeuge for DAkkS‑calibration options, accessory recommendations and purchasing support for this KERN 336-39 block weight; reach out via info@metav-werkzeuge.com or +49 2822 7131930 for tailored advice from Emmerich. Technical data Article number: 336-39 SKU: 336-39 GTIN: 4045761232839 Manufacturer: KERN Origin: DE Facts Nominal value: 50 kg Tolerance (OIML F2): 800 mg Tariff code (Warennummer): 84239090 ECLASS: 32120103 Special features Material: stainless steel, glass‑bead blasted Design: block weight / single weight OIML class: F2 Recommendation: protective case for storage Calibration recommendation: DAkkS calibration advised FAQ What accuracy class does this weight meet? The KERN 336-39 is produced to OIML class F2, with a specified maximum permissible error of 800 mg for the 50 kg nominal value. Is the 50 kg block weight suitable for laboratory and workshop use? Yes; the stainless steel block design is durable enough for workshop environments while offering the precision required for laboratory calibrations of mid‑range balances. How should the block weight be stored to preserve accuracy? Store the block weight in a protective case and handle it with clean gloves; these measures help maintain the declared mass and surface condition of the KERN 336-39. Can this weight be calibrated to national standards? A DAkkS calibration is recommended for traceable results; note that EG initial verification for weights is no longer possible after 30 November 2025, so DAkkS calibration is the advised route. What are the surface and material properties of the weight? The weight is made from stainless steel with a glass‑bead blasted finish, providing corrosion resistance and a low‑contamination surface suitable for repeated use. KERN — Germany. Metav Werkzeuge, Emmerich am Rhein · info@metav-werkzeuge.com · +49 2822 7131930
50 kg Calibration Weight Knob Shape Polished Stainless Steel OIML E1, 25 mg Tolerance - KERN
Take advantage of the combination of highest metrological accuracy, robust stainless construction, and clear traceability for reliable balance verification. Order the calibration weight directly via Metav Werkzeuge or consult our specialists if additional specifications or accessories are required. KERN 307-16 calibration weight — OIML Class E1, 50 kg, polished stainless steel The KERN 307-16 is a knob-shaped calibration weight designed for laboratory and industrial scale verification where repeatable, certified mass values are required OIML class E1 for highest accuracy 50 kg nominal mass, precision 25 mg Polished stainless steel, knob design Laboratory-grade accuracy that reduces calibration uncertainty The OIML Class E1 designation indicates the weight meets the strictest international tolerances for reference masses, suitable for primary checks and accredited verification routines. With a nominal mass of 50 kg and a declared tolerance of 25 mg, this reference mass supports traceable adjustments and uncertainty budgets in high-precision metrology. The specification minimises rework and reduces the frequency of repeat measurements, which contributes directly to production efficiency and audit readiness. Robust design for safe handling and long-term stability Manufactured from polished stainless steel, the weight combines corrosion resistance with a finish that eases routine cleaning and prevents contamination of delicate balance pans. The knob shape provides a secure grip for controlled placement and removal, lowering the risk of handling error and surface damage. These design choices extend service life and preserve calibration integrity, so verification intervals can be planned with confidence rather than constant corrective work. Seamless integration into quality systems and calibration workflows This reference mass is prepared for immediate use in laboratory and industrial environments, supporting documented calibration procedures and ISO-compliant traceability chains. The robust material and exacting tolerance simplify the establishment of measurement uncertainty and support accredited processes. For transport and storage, a protective case is recommended because the high-accuracy class benefits from minimal handling and stable environmental conditions; Metav Werkzeuge offers suitable accessories to complete a reliable calibration routine. Choose the KERN 307-16 for uncompromised reference accuracy and contact Metav Werkzeuge in Emmerich for accessory recommendations and secure, reliable supply from our central quality filter. Technical data Article number: 307 SKU: 307-16 GTIN: 4045761002807 Manufacturer: KERN Material: Polished stainless steel OIML class: E1 Form: Knob shape Nominal mass: 50 kg Tolerance: 25 mg Origin: DE Tariff number: 84239090 Facts Nominal mass: 50 kg Tolerance: 25 mg GTIN: 4045761002807 Tariff number: 84239090 Special features Polished stainless steel Knob form for safe handling OIML Class E1 reference mass Origin: Germany SKU: 307-16 FAQ What does OIML Class E1 mean for measurement tasks? OIML Class E1 denotes the highest international tolerance class for reference masses; the KERN 307-16 meets these limits and is therefore suitable for primary verification and calibration where minimal uncertainty is required. Is a protective case necessary for this weight? Yes — due to the very fine tolerance, a protective case is strongly recommended to avoid contamination and mechanical damage; Metav Werkzeuge lists suitable etuis in the accessories section. What is the declared accuracy of the 50 kg weight? The KERN 307-16 has a nominal mass of 50 kg with a declared tolerance of 25 mg, enabling tight uncertainty control in calibration procedures. Can this weight be used in accredited calibration laboratories? The combination of OIML Class E1 specification and polished stainless construction makes this reference mass appropriate for use in accredited routines and documentation that require traceable reference standards. KERN • Germany
50 kg Calibration Weight Knob Shape Stainless Steel Turned OIML Class F2, 800 mg Tolerance - KERN
Take advantage of high reproducibility and durable construction thanks to OIML Class F2 accuracy and a fine-turned stainless steel finish; order the single weight directly via Metav Werkzeuge or consult our specialists for application advice. KERN 337-16 — 50 kg OIML Class F2 calibration weight, knob form The KERN 337-16 is a single calibration weight designed for traceable mass checks and routine calibrations of industrial scales and balances Calibration weight OIML Class F2 Nominal mass 50 kg Fine-turned stainless steel finish Knob form for safe handling Reliable accuracy for repeatable results A primary benefit of this calibration mass is its OIML Class F2 rating, which ensures a defined maximum deviation—listed here as tolerance 800 mg. That level of precision supports consistent, repeatable adjustments of industrial weighing equipment where stable reference masses are required. The specification translates directly into fewer rechecks and a more predictable calibration routine, which is especially relevant for quality assurance workflows and processes governed by measurement standards. Durable construction and safe handling Constructed from fine-turned stainless steel, the weight resists corrosion and retains its geometry under normal workshop conditions, safeguarding long-term measurement stability. The knob form facilitates safe placement and removal from weighing platforms while reducing the risk of surface damage during handling. These physical attributes protect the calibrated value of the reference mass and reduce the need for frequent rework, contributing to lower lifetime operational disruption. Practical fit for laboratory and industrial use As a single weight with a nominal mass of 50 kg, this reference mass suits calibration tasks for larger scales and balance systems used in production, shipping or calibration laboratories. The compact profile and proven material selection support easy storage and transport when combined with appropriate protective cases. Originating from Germany, the unit meets expectations for manufacturing consistency and traceability in regulated environments. For secure, traceable calibrations and advice on suitable accessories for the KERN 337-16, contact Metav Werkzeuge for tailored guidance and availability. Technical Data Article number: 337-16 Manufacturer: KERN GTIN: 4045761006638 Origin: DE Tariff number: 84239090 Facts Nominal mass: 50 kg Tolerance (OIML F2): 800 mg OIML class: F2 Material: stainless steel (fine-turned) Form: knob form Special features Single weight Knob form for handling Fine-turned stainless steel surface SKU: 337-16 Intended for calibration and verification tasks FAQ What accuracy class does this calibration weight have? The KERN 337-16 is classified as OIML Class F2, with a stated tolerance of 800 mg, making it suitable for many industrial calibration applications. Which scales and balances can be checked with this weight? This single weight is intended for use with larger scales and balances whose capacity and calibration procedure accommodate a 50 kg reference mass. How should the weight be handled to avoid damage? The knob form allows controlled handling and positioning; lifting with the knob and storing in a protective case preserves the fine-turned stainless steel surface and the calibrated value. Is the surface resistant to corrosion? Yes, the fine-turned stainless steel construction offers good resistance to corrosion and supports stability in typical workshop and laboratory environments. Is an accessory recommended for storage or transport? For this accuracy class and mass, an appropriate protective case is recommended to prevent surface damage and maintain measurement integrity; a selection is available in the accessories section. Metav Werkzeuge, Emmerich am Rhein, Germany · Email: info@metav-werkzeuge.com · Phone: +49 2822 7131930 · WhatsApp: +49 170 2837271
50 kg Calibration Weight Three-Point Stackable, Stainless Steel Turned, OIML Class F2, 800 mg Tolerance - KERN
Take advantage of the combination of certified accuracy, a fine-turned stainless finish and a stackable form for efficient storage to maintain reliable calibration workflows; order this weight directly via Metav Werkzeuge or consult our specialists for matching accessories and handling advice. Calibration weight 337-161 — 50 kg, OIML class F2, fine-turned stainless steel (KERN) The calibration weight 337-161 is a stackable control mass designed for verification and routine checking of industrial and laboratory scales, offering a balance of regulatory conformity and practical handling. OIML class F2 accuracy Fine-turned stainless steel construction Nominal value 50 kg for heavy-duty calibration Stackable design for compact storage Certified accuracy that supports process reliability The OIML class F2 specification and the declared tolerance of 800 mg make this mass a dependable reference for repeat checks and routine verifications of medium- to high-capacity scales. As a 50 kg nominal mass, it provides a clearly defined calibration point close to the upper ranges of many floor and bench scales, reducing uncertainty when validating weighing equipment. The classification gives procurement and quality teams an objective basis for conformity assessment and internal quality control planning. Robust finish for consistent long-term performance Manufactured from fine-turned stainless steel, the mass resists surface wear and corrosion while keeping the nominal value stable under normal workshop conditions. The turned finish ensures a uniform surface that minimises handling contamination and eases cleaning. Durability of the material reduces the frequency of replacement and supports consistent measurement results over the life of the product, which in turn simplifies traceability and inventory management for metrology departments. Practical design that saves space and simplifies handling The stackable configuration enables compact storage of multiple reference masses, which is beneficial in busy calibration labs or production environments where bench space is limited. A solid, compact geometry assists safe handling during loading and unloading on scales, and the robust stainless construction sustains repeated use. For transport and protection of the mass during non-use, a protective case is recommended to avoid surface damage that could affect mass value. Clear specifications for integration into quality systems Key specification points — OIML class F2, 50 kg nominal mass and 800 mg tolerance — provide quantifiable inputs for uncertainty budgets and calibration schedules. The physical dimensions (cylindrical form) and stackability support ergonomic and logistical planning when organising sets of reference masses. This mass is therefore suitable as a control weight within routine verification cycles where defined OIML accuracy classes are required. Contact Metav Werkzeuge in Emmerich for ordering and accessory recommendations — email info@metav-werkzeuge.com or call +49 2822 7131930 to arrange delivery options and to discuss the recommended protective case for this class of weight Technical data Article number: 337 SKU: 337-161 GTIN: 4045761006652 Manufacturer: KERN Origin: DE Tariff code: 84239090 Core technical data Nominal value: 50 kg Tolerance (OIML F2): 800 mg Dimensions (cylinder): 198 × 249.5 mm Weight: 50 kg OIML class: F2 Special features Material: fine-turned stainless steel Type: control weight / calibration mass Design: stackable Recommended accessory: protective case (etui) FAQ Is the 337-161 suitable for routine verification of floor scales? Yes. The KERN 337-161 calibration weight is specified as OIML class F2 with a nominal value of 50 kg and a tolerance of 800 mg, making it appropriate for routine checks of many floor and industrial scales. What does OIML class F2 mean for measurement uncertainty? OIML class F2 defines the permissible error band for reference masses of this category; for the 50 kg nominal value the stated tolerance is 800 mg, which is the relevant figure when calculating calibration uncertainty budgets. What material is used and how does it affect longevity? The mass is made from fine-turned stainless steel, a material chosen for its mechanical stability and corrosion resistance, which helps maintain nominal value and reduces maintenance related to surface degradation. Can multiple weights be stored together safely? Yes. The product has a stackable design to save space; however, use of a protective case (etui) is recommended to prevent surface contact that could lead to wear and affect the mass value. Are the dimensions suitable for standard lifting and handling aids? The cylindrical form and the dimensions 198 × 249.5 mm allow planning for safe handling with common workshop aids; check local handling protocols to ensure compliance with workplace ergonomics. Is a protective case necessary for this class of weight? For OIML class F2 masses, a protective case is recommended to avoid scratches and contamination that can alter the effective mass; an etui is suggested for transport and long-term storage of the 50 kg control weight. Metav Werkzeuge, Emmerich am Rhein, Germany · Email: info@metav-werkzeuge.com · Tel: +49 2822 7131930
50 kg Calibration Weight, OIML Class E2, Button Shape, Polished Stainless Steel, 80 mg Tolerance - KERN
Take advantage of OIML class E2 accuracy and a polished stainless steel finish for reliable, repeatable calibrations; the knob design simplifies handling and storage. For long-term traceability, opt for a DAkkS calibration and a protective case. Order the calibration weight directly via Metav Werkzeuge or ask our consultants if needed. KERN 317-16 single calibration weight — 50 kg, OIML E2 The KERN 317-16 is a precision single calibration weight designed for laboratory and industrial scale calibration where high stability and traceability are required. OIML class E2 accuracy Nominal mass 50 kg Polished stainless steel finish Knob design for safe handling Consistent accuracy for routine and audit-ready calibration The reference mass is manufactured to OIML class E2, offering a tolerance of 80 mg for a 50 kg nominal mass, which reduces measurement uncertainty in verification and calibration tasks. This level of precision supports repeatable calibration cycles and simplifies compliance checks during internal audits. Choosing a certified reference mass lowers the risk of instrument drift and contributes to predictable process control and fewer unplanned recalibrations. Ergonomic handling with durable materials A polished stainless steel construction provides chemical and corrosion resistance as well as an easy-to-clean surface that minimises contamination of weighing equipment. The knob shape offers controlled handling and safer placement on pans or plates, reducing the likelihood of accidental impacts. Robust finishing and a compact form factor support frequent use in production and laboratory environments while preserving the mass stability required for traceable results. Traceability, documentation and practical recommendations For traceable results, DAkkS calibration is recommended and serves as an appropriate alternative to the EU type approval that will no longer be issued after 30 November 2025. The weight includes manufacturer identification and GTIN to support inventory and quality management systems. Because of the precise class, storage in a protective case is advised to preserve the calibration state; a suitable case and DAkkS calibration options are available as accessories and services to complete the measurement setup. Contact Metav Werkzeuge for DAkkS calibration, accessory recommendations and delivery from Emmerich am Rhein — email info@metav-werkzeuge.com or call +49 2822 7131930 for personalised advice Technical data SKU: 317-16 Article number: 317 Manufacturer: KERN GTIN: 4045761003828 Origin: Germany Core specifications Nominal mass: 50 kg Tolerance (OIML E2): 80 mg Tariff number: 84239090 eClass: 32120103 Materials & special features Material: Polished stainless steel Shape: Knob OIML class: E2 Recommended: Protective case; DAkkS calibration advised FAQ Is this weight suitable for laboratory calibrations? The KERN 317-16 single calibration weight is manufactured to OIML class E2, making it suitable for many laboratory calibration tasks where high-precision reference masses are required. What accuracy can be expected for a 50 kg reference mass? The nominal mass of 50 kg carries a tolerance of 80 mg under OIML class E2, which defines the permissible deviation for traceable calibrations. Is an accredited calibration available for this weight? DAkkS calibration is recommended for the 317-16 and is available as a service; it provides documented traceability appropriate for most audit and quality requirements. How should the weight be stored and handled? Store the weight in a protective case and handle it by the knob to prevent surface damage and contamination; the polished stainless steel finish facilitates cleaning after use. Will the weight remain compliant after 30 November 2025? Note that EU type approval for calibration weights ceases on 30 November 2025; DAkkS calibration is advised to ensure continued traceability and acceptance in most applications. Metav Werkzeuge — Emmerich am Rhein, Germany · info@metav-werkzeuge.com · +49 2822 7131930
50 kg Precision Test Weight Block Eco Painted Cast Iron, OIML M2, 8 g Tolerance - KERN
Compact, robust and designed for routine verification: the combination of OIML Class M2 accuracy, a 50 kg nominal mass and a painted cast-iron block delivers dependable calibration results with low maintenance. Order the weight directly via Metav Werkzeuge or request advice from our consultants. KERN ECO Block Weight 356-79 — OIML Class M2, 50 kg painted cast iron The KERN ECO Block Weight is a single 50 kg calibration mass designed for routine checks and verification of industrial and laboratory scales. OIML Class M2 accuracy 50 kg nominal mass Painted cast-iron construction Block Eco compact design Reliable conformity for routine calibrations The OIML Class M2 classification defines a clear tolerance band for mid-range verification, here specified as 8 g, which supports consistent and traceable results when checking floor and bench scales. As a 50 kg nominal mass, this block is suitable for standard calibration intervals and periodic conformity checks in production and quality-control environments. The technical specification offers a practical balance between precision and cost-efficiency, ensuring measurable compliance with international weighing recommendations while keeping verification workflows straightforward. Durable design that reduces downtime Constructed from painted cast iron, the block format resists surface wear and preserves mass stability during regular handling and storage. The compact Block Eco design simplifies transport and stacking, lowering the risk of deformation compared with more delicate geometries. Robust material choice and a protective finish minimise the need for frequent repair or replacement, which in turn supports continuous operation on the shop floor and reduces interruptions to measurement processes. Practical integration and traceable use As a single calibration mass, the ECO block is immediately usable for verification tasks without additional assemblies or adapters. The simple geometry eases placement on platforms and ensures stable contact with weighing surfaces, which is important for repeatable readings. Documentation of the OIML Class M2 tolerance and the nominal 50 kg value supports audit trails and quality records. For customers seeking a dependable test weight that fits within established calibration regimes, this mass provides a pragmatic solution that aligns with common industrial workflows. For reliable calibration with the KERN 50 kg block, contact Metav Werkzeuge in Emmerich for tailored delivery and expert advice via info@metav-werkzeuge.com or phone +49 2822 7131930 Technical data SKU: 356-79 Manufacturer: KERN GTIN: 4045761241817 Facts Nominal mass: 50 kg OIML tolerance (Class M2): 8 g Tariff number: 84239090 Special features Material: painted cast iron Design: Block Eco single weight Origin: CN FAQ What does OIML Class M2 mean for calibration work? OIML Class M2 indicates a defined tolerance suitable for routine verification of industrial and laboratory scales; the KERN ECO Block Weight (SKU 356-79) meets this class with a tolerance of 8 g for its 50 kg nominal mass. Is the 50 kg block suitable for floor scales and bench scales? Yes, the 50 kg nominal mass is commonly used for verification of both floor and bench scales; the block geometry of the KERN ECO Block Weight ensures stable placement and repeatable readings. How should the weight be stored to maintain accuracy? Store the painted cast-iron block in a dry, stable environment and avoid mechanical shocks; routine visual checks and periodic recalibration preserve measurement traceability for the KERN ECO Block Weight. Can this weight be used for legal-for-trade verification? The KERN 50 kg block conforms to OIML Class M2 specifications; whether it is permitted for legal-for-trade use depends on local legal metrology requirements, which should be checked before use. How often should the block be recalibrated? Recalibration intervals depend on usage frequency and quality-system requirements; the KERN ECO Block Weight should be included in the site’s calibration schedule to maintain conformity and traceability. KERN — Origin: CN; Metav Werkzeuge, Emmerich am Rhein; info@metav-werkzeuge.com · +49 2822 7131930 · WhatsApp +49 170 2837271
50 kg Precision Test Weight Block Eco, OIML Class M3, Painted Cast Iron, 25 g Tolerance - KERN
Take advantage of a robust combination of certified accuracy, durable construction and space-saving block design for reliable routine scale verification. Order the ECO block weight directly via Metav Werkzeuge or consult our product experts for tailored technical advice. ECO block weight, Class M3 – 50 kg (KERN) The ECO block weight is a compact calibration weight designed for routine verification of industrial and workshop scales, offering a dependable reference mass for everyday metrology tasks. OIML class M3 certified accuracy Durable painted cast iron construction Compact block design for stable placement Nominal value 50 kg with 25 g tolerance Dependable reference mass for routine verification The ECO block weight serves as a straightforward reference for scale checks where robustness and repeatable performance are required. With OIML Class M3 certification and a nominal mass of 50 kg, the unit supports routine conformity checks and internal quality control. The declared tolerance 25 g gives a clear quantitative limit for permissible deviation, enabling technicians to verify that a scale remains within expected performance bands and to document results for traceability and audit purposes. Built for workshop environments and practical handling Constructed from painted cast iron, the block design delivers stability during placement and minimises tipping or rolling compared with cylindrical weights. The Block Eco format concentrates mass in a low-profile form, which simplifies positioning on load platforms and reduces the risk of accidental displacement. As an individual calibration weight, it is suitable for industrial settings where durability matters; the robust finish reduces corrosion risk and makes routine cleaning straightforward, supporting long service life under regular use. Integration, documentation and operational benefits Using a clearly identified calibration weight reduces downtime during verification routines and streamlines calibration paperwork. The single calibration weight format limits handling complexity and helps maintain a consistent reference point across shifts. With manufacturer data such as GTIN available for inventory and asset management, procurement and stores teams can track stock and ensure continuity of supply. Choosing a standardised block weight supports efficient workflows and contributes to reliable measurement results across production and inspection stations. For dependable scale verification, order the KERN ECO block weight through Metav Werkzeuge — contact our Emmerich-based team for technical details and procurement guidance. Technical data Article number: 366 SKU: 366-79 Manufacturer: KERN GTIN: 4045761241855 Country of origin: CN Core specifications Nominal mass: 50 kg OIML class: M3 Tolerance: 25 g Tariff number: 84239090 eCl@ss: 32120103 Design & features Material: painted cast iron Format: Block Eco single weight Product category: Calibration weight (Prüfgewichte) Intended application: verification of scales (waagen) FAQ What does OIML Class M3 mean for its use? OIML Class M3 indicates a defined level of allowable deviation appropriate for routine verification tasks; the ECO block weight is intended as a practical reference mass for industrial and workshop scales rather than high-precision laboratory calibrations. Can the ECO block weight be used on any scale with a 50 kg range? The ECO block weight (KERN, SKU 366-79) provides a 50 kg nominal mass for verification; suitability depends on the scale’s capacity and intended tolerance checks, so selection should match the device’s verification requirements. How should the painted cast iron weight be maintained? Routine maintenance for the painted cast iron finish consists of gentle cleaning to remove debris and dry storage to minimise corrosion risk; avoid aggressive solvents that could damage the coating. Is the declared tolerance sufficient for routine quality control? For many workshop and industrial applications, the 25 g tolerance of this OIML M3 weight offers a clear, measurable criterion to confirm that a scale remains within acceptable limits and to support documented checks. How does the block design improve handling during verification? The low-profile Block Eco shape concentrates mass close to the platform, improving stability and simplifying positioning, which reduces handling time and the likelihood of measurement disturbance. Metav Werkzeuge, Emmerich am Rhein, Germany — Email: info@metav-werkzeuge.com — Phone: +49 2822 7131930 — WhatsApp: +49 170 2837271
50 kg Precision Test Weight Stackable, OIML Class M1, Stainless Steel Turned, 2.5 g Tolerance - KERN
Kern accuracy meets workshop practicality: the combination of OIML Class M1 conformity, a 50 kg nominal mass and a finely turned stainless-steel finish ensures reliable calibration results and long service life. Order the calibration weight directly via Metav Werkzeuge or consult our specialists for application advice. KERN 347-161 Calibration weight — OIML M1, 50 kg, stainless steel A KERN 347-161 is a stackable calibration weight used for verification and routine checks of industrial and laboratory scales. OIML Class M1 accuracy Nominal mass 50 kg, tolerance 2.5 g Finely turned stainless-steel construction Stackable cylindrical design for compact storage Consistent legal-grade accuracy for dependable results The reference mass conforms to OIML Class M1, which guarantees a maximum permissible error of 2.5 g for the 50 kg nominal value. This classification makes the calibration mass suitable for statutory verification and internal control procedures where documented traceability and repeatable results are required. Choosing a certified reference reduces recalibration frequency and supports quality assurance programmes by providing a verified baseline for weighing equipment. Robust manufacture for repeated handling and easy maintenance Machined from finely turned stainless steel, the body combines corrosion resistance with a smooth surface that is easy to clean after use. The cylindrical form with precise dimensions (Ø × height 198 × 249.5 mm) and a stackable design minimises storage footprint and protects the mass during transport. The material and finish preserve metrological properties over time, helping to maintain accuracy under regular workshop conditions and frequent handling. Simple integration into calibration workflows and inventory Marked with its GTIN and SKU, the weight fits standard calibration routines and inventory systems, simplifying administrative tracking and audit trails. The mass serves as a stable reference for scale adjustments, control weighing and acceptance testing across production, laboratory and inspection tasks. Supplied as a single, stand-alone control weight, it supports modular calibration strategies where specific nominal values are required for stepwise verification. For precise, durable calibration masses from KERN, contact Metav Werkzeuge in Emmerich for tailored advice and ordering: info@metav-werkzeuge.com • +49 2822 7131930 Technical data Article number: 347 SKU: 347-161 GTIN: 4045761008939 Manufacturer: KERN Country of origin: DE HS code: 84239090 Facts Nominal mass: 50 kg OIML class: M1 Tolerance (max permissible error): 2.5 g Cylinder dimensions: 198 × 249.5 mm Special features Material: finely turned stainless steel Stackable design Intended use: control weight / calibration mass FAQ What accuracy class does this calibration weight meet? The calibration weight is certified to OIML Class M1, providing a maximum permissible error of 2.5 g for the 50 kg nominal value. Is the mass suitable for routine verification in a production environment? Yes, the 50 kg mass is designed as a control weight for regular verification and routine checks of industrial and laboratory scales. What material is the weight made from and how does that affect durability? The weight is manufactured from finely turned stainless steel, which offers corrosion resistance and a smooth surface that helps preserve accuracy during repeated handling. Can multiple units be stored efficiently? The cylindrical, stackable design permits compact storage and safer transport of several calibration masses. How is the product identified for inventory and traceability? The unit is supplied with a GTIN and SKU (347-161) for straightforward integration into inventory and audit systems. KERN — Germany — no contact details available
50 kg Test Weight Block Eco, OIML Class M1, Coated Cast Iron, 2.5 g Tolerance - KERN
Take advantage of the combination of OIML Class M1 accuracy, a 50 kg nominal mass and a robust painted cast-iron construction for dependable scale verification in workshops and production. Order the ECO block weight directly via Metav Werkzeuge or ask our consultants if needed. ECO block weight — Class M1 calibration weight by KERN, 50 kg, painted cast iron The ECO block weight is a Class M1, 50 kg calibration weight designed for routine verification and adjustment of industrial and commercial scales, offering a compact block design for stable handling and storage. OIML Class M1 accuracy, tolerance 2.5 g Nominal mass 50 kg for scale verification Painted cast iron for long-term durability Block Eco design for compact storage Consistent measurements through certified accuracy The main benefit of a class-certified test mass is predictable precision during verification cycles. As an OIML Class M1 weight with a tolerance of 2.5 g, this calibration mass provides clearly defined limits for acceptable error when checking balances and scales; the 50 kg nominal value makes it suitable for medium- and heavy-capacity weighing equipment. Class M1 indicates the mass is manufactured and controlled to metrological standards appropriate for many industrial and commercial applications, supporting reproducible adjustments and limiting time spent on iterative re-calibration. Durable construction that reduces handling concerns Built in a Block Eco form and finished in painted cast iron, the unit resists everyday wear while remaining compact for storage. The block format provides a low centre of gravity and a simple footprint for stable placement on scale plates during checks. These material and design choices lower the risk of surface damage and corrosion in workshop environments, so fewer replacements or repairs are needed and maintenance routines stay efficient. The single-weight format simplifies logistics where individual calibration masses are required rather than full sets. Practical traceability and workshop integration Traceability and inventory clarity are supported by clear identifiers and origin data: SKU 346-79 and GTIN 4045761241701 facilitate stock management and record keeping. As a reliable KERN calibration mass, the product aligns with standard calibration workflows and can be integrated into internal verification schedules to demonstrate consistent measurement practice. Metav Werkzeuge’s role as a quality filter and distributor from Emmerich ensures broad availability and straightforward procurement for industry and craft, backed by an extensive product range and established market trust. Choose the KERN ECO block weight for dependable Class M1 verification and contact Metav Werkzeuge in Emmerich at info@metav-werkzeuge.com or +49 2822 7131930 to discuss suitability for specific scales and applications Technical Data Article number: T346-7-A SKU: 346-79 Manufacturer: KERN GTIN: 4045761241701 Facts Nominal weight: 50 kg OIML class: M1 Tolerance: 2.5 g Tariff number: 84239090 Special features Block Eco design Single weight (Einzelgewicht) Painted cast iron material Country of origin: CN FAQ What level of accuracy does this calibration weight provide? The KERN ECO block weight (Class M1) provides an accuracy corresponding to OIML Class M1 with a tolerance of 2.5 g, suitable for routine verification of many industrial scales. For which applications is a 50 kg mass appropriate? A 50 kg nominal mass is suitable for medium- and heavy-capacity scales used in production, incoming goods checks and general workshop calibration tasks where Class M1 verification is required. How does the painted cast-iron finish affect use? The painted cast-iron finish on this block-style test mass protects the surface against minor corrosion and wear, helping to maintain calibration integrity during regular handling and storage. Can this single weight be used as part of a verification set? Yes, the single-block format can be used alone for checks at the 50 kg point or combined with other masses in a verification programme; records can reference SKU 346-79 and GTIN 4045761241701 for traceability. Is the KERN ECO block weight suitable for workshop environments? The compact Block Eco design and robust painted cast-iron construction make this calibration weight well suited to workshop conditions where durability and straightforward handling are priorities. KERN — Origin: China — Contact: not provided
50 kg Test Weight Block, OIML Class M1, Stainless Steel Bead-Blasted, 2.5 g Tolerance - KERN
Combine the OIML Class M1 accuracy with a 50 kg stainless-steel block and documented traceability to secure reliable scale calibration; order via Metav Werkzeuge or consult our specialists for tailored advice. KERN 346-09 Block weight (OIML Class M1) — 50 kg, stainless steel A KERN 346-09 block calibration weight designed for laboratory and industrial scale verification, offering a robust reference mass for routine and statutory checks OIML Class M1 accuracy Nominal mass 50 kg Stainless steel, glass-bead blasted finish Block design for stable placement Consistent accuracy for measurement-critical processes The block serves as a reference mass for verification and calibration tasks where repeatable results are essential. Certified to OIML Class M1, the reference shows a nominal tolerance of 2.5 g, enabling clear statements about measurement uncertainty when used with appropriate weighing instruments. By choosing a 50 kg stainless-steel reference, laboratories and workshops reduce drift-related adjustments and support reproducible weighing procedures, which improves throughput and reduces rework in production environments. Robust construction that eases handling and maintenance Manufactured in stainless steel with a glass-bead blasted surface, the block is corrosion-resistant and maintains geometry under normal workshop conditions. The compact block design provides a stable footprint for direct placement on platform and floor scales, simplifying handling during routine checks. Built for frequent use, the mass minimises surface contamination risks and can be cleaned without damaging the finish, which preserves long-term metrological performance and reduces downtime for maintenance. Traceability and calibration advice for regulatory compliance With regulatory frameworks evolving, the product is a practical choice where traceable calibration is required. The former EC type approval route will no longer be available from 30 November 2025; for continued conformity and traceable results, a DAkkS calibration is recommended. The combination of documented calibration and the inherent stability of a stainless-steel block facilitates traceability chains and audit-readiness for quality management systems, making this reference mass suitable for both workshop checks and accredited laboratory environments. For procurement or calibration planning, contact Metav Werkzeuge to discuss the KERN 346-09 block weight and arrange DAkkS calibration options directly with our consultants. Technical data Article number: 346 SKU: 346-09 Manufacturer: KERN GTIN: 4045761117150 Facts Nominal mass: 50 kg Tolerance (OIML M1): 2.5 g Tariff number: 84239090 Origin: Germany Special features Material: stainless steel, glass-bead blasted Design: block weight OIML class: M1 FAQ What accuracy class does this calibration weight meet? The KERN 346-09 is certified to OIML Class M1, with a nominal tolerance of 2.5 g, suitable for many laboratory and industrial calibration tasks. Is the weight suitable for regular use in a production environment? Yes, the 50 kg stainless-steel block design is intended for frequent handling and stable placement, making it appropriate for routine workplace verification and process controls. What calibration is recommended for legal or audit purposes? For traceable results and audit-readiness, a DAkkS calibration is recommended; this applies to the KERN 346-09 to ensure documented conformity post-30 November 2025. Can the weight be used with floor and platform scales? The block form factor of this reference mass is designed for secure placement on platform and floor scales to facilitate direct comparison and calibration procedures. What surface treatment does the weight have and why does it matter? The stainless-steel mass features a glass-bead blasted finish, which enhances corrosion resistance and simplifies cleaning while maintaining dimensional stability. KERN; Germany; contact details not provided.
50 kg Test Weight Stainless Steel Polished Stackable, OIML Class F1, 250 mg Tolerance - KERN
Take advantage of OIML F1 precision, the 50 kg nominal mass and the durable polished stainless steel finish for consistent calibration results; order the weight directly via Metav Werkzeuge or contact our consultants for application advice. KERN 327-161 calibration weight — OIML F1, 50 kg, polished stainless steel The KERN 327-161 is a stackable, knob-form calibration weight intended for precise verification and routine control of laboratory and industrial scales. OIML F1 accuracy class 50 kg nominal mass Polished stainless steel finish Stackable knob design Consistent measurement results through certified accuracy The OIML F1 classification ensures that measurement checks deliver reproducible and legally traceable results, making this weight suitable for verification tasks and routine control where high accuracy is required. With a nominal mass of 50 kg and a declared tolerance of 250 mg, the unit provides a reliable reference value for medium‑to‑heavy capacity scales. The certification class communicates clearly how the weight will perform under comparative testing, helping to reduce uncertainty in regular quality-control processes. Robust construction for workshop and laboratory handling Manufactured from polished stainless steel, the weight resists corrosion and is easy to clean after use, which supports a long service life even in demanding environments. The knob form and stackable design enable secure handling and compact storage; stacking permits safe multi-weight configurations without compromising accuracy. The finish and shape also reduce contact contamination and simplify routine maintenance, which means less downtime for cleaning and handling during production cycles. Practical calibration workflow and conformity advice As a single control unit, this calibration weight integrates smoothly into regular calibration procedures and audit trails. For formal traceability and extended measurement assurance, a DAkkS calibration is recommended; DAkkS certificates are generally accepted for most industrial and laboratory applications and represent a robust alternative where initial statutory verification is not available. For safe transport and storage, an etui is advised to maintain the polished surface and prevent damage during handling. Contact Metav Werkzeuge in Emmerich for ordering, DAkkS calibration options or technical consultation regarding the suitability of the KERN 327-161 for specific scales and measurement tasks Technical Data Article number: 327 SKU: 327-161 GTIN: 4045761004894 Manufacturer: KERN Material: Polished stainless steel OIML class: F1 Nominal mass: 50 kg Tolerance: 250 mg Form: Knob form Stackable: Yes Dimensions (cylinder): 137×217 mm Origin: DE Tariff number: 84239090 Facts Nominal mass: 50 kg Declared tolerance: 250 mg Cylinder dimensions: 137×217 mm GTIN: 4045761004894 Tariff number: 84239090 Special features Stackable knob form for compact storage Polished stainless steel surface for durability Single control/calibration weight OIML F1 certified for precision verification Recommended: use an etui for transport and storage Recommended: DAkkS calibration for traceability FAQ Is this weight suitable for calibrating industrial platform scales? The KERN 327-161 calibration weight (SKU 327-161) is suitable for many industrial platform scales where a 50 kg reference is required; its OIML F1 accuracy class supports routine verification and control procedures. What level of tolerance can be expected from this control weight? The declared tolerance for this unit is 250 mg, which aligns with the OIML F1 specification and provides a reliable reference for mid-range calibration tasks. Can the weight be stacked for multiple-step calibrations? Yes, the stackable knob design permits secure stacking and combination with other weights to achieve stepwise mass values without compromising stability. How should the polished stainless steel surface be maintained? Routine cleaning with a soft cloth and non‑aggressive cleaners preserves the polished finish; using an etui during transport prevents surface damage and contamination. Is an official calibration certificate available for this weight? A DAkkS calibration is recommended and can be arranged for the KERN 327-161 to provide formal traceability accepted in laboratory and industrial contexts. KERN — Germany; Metav Werkzeuge, Emmerich am Rhein; info@metav-werkzeuge.com, +49 2822 7131930, WhatsApp +49 170 2837271
50 kg Test Weight, OIML Class F1, Polished Stainless Steel Knob, 250 mg Tolerance - KERN
Taking advantage of high metrological accuracy, robust stainless construction and an ergonomic knob, this single 50 kg calibration weight supports consistent scale performance and traceable results; order or request expert advice via Metav Werkzeuge for procurement and calibration guidance. KERN 327-16 — 50 kg single calibration weight, OIML F1, polished stainless steel The KERN 327-16 is a 50 kg single calibration weight in OIML class F1, suited to precision scale calibration in laboratories, inspection rooms and professional workshops. OIML F1 accuracy for laboratory calibration Polished stainless steel finish Knob form for safe handling Recommended protective case for storage Consistent metrology with certified accuracy The weight is manufactured to OIML F1 standards and provides a 50 kg nominal mass with a tolerance of 250 mg, enabling reliable adjustment and verification of class‑appropriate scales. For users requiring traceable results, the defined tolerance means corrective adjustments and uncertainty budgets can be calculated with confidence. Where legislative or accreditation pathways apply, note that initial EC type-approval for calibration weights will no longer be available after 30 November 2025; accordingly, DAkkS calibration is recommended as the prevalent route to secure traceability and formal documentation. Robust construction and practical handling Constructed from polished stainless steel, this single weight offers corrosion resistance and a low‑maintenance surface that retains metrological integrity in routine use. The knob form simplifies handling and placement on balances, reducing the risk of accidental contact with the measuring surfaces. The compact profile and smooth finish also make cleaning straightforward: use lint‑free cloths and avoid aggressive chemicals to preserve the calibration surface. For preservation of accuracy during storage and transport, a protective case is advisable — especially given the fine tolerance classes involved. Integration into calibration workflows As a single calibration mass for laboratory and workshop environments, this weight is intended for direct use with class‑compatible balances and calibration routines. A documented calibration certificate from a recognised laboratory ensures traceability; Metav Werkzeuge can advise on suitable calibration options including DAkkS certificates where required. Proper handling, controlled room conditions and periodic recalibration will extend service life and maintain measurement certainty, helping to reduce downtime and ensure repeatable results in quality control procedures. Secure the KERN 327-16 via Metav Werkzeuge for assured traceability and delivery from our Emmerich hub — contact info@metav-werkzeuge.com or call +49 2822 7131930 for DAkkS calibration advice and procurement assistance Technical data Article number: 327 SKU: 327-16 GTIN: 4045761004887 Manufacturer: KERN Origin: DE Facts Mass value: 50 kg Tolerance (OIML): 250 mg Class: OIML F1 Dimensions (cylinder): 178×298 mm Tariff code: 84239090 Special features Material: polished stainless steel Shape: knob form Surface: polished Recommended: use with protective case Note: DAkkS calibration recommended FAQ What accuracy class does this weight meet? The KERN 327-16 meets OIML F1 accuracy specifications and is specified with a tolerance of 250 mg for the 50 kg nominal mass. Is DAkkS calibration available for this weight? Yes; DAkkS calibration is recommended for the KERN 327-16, particularly because initial EC approval of calibration weights will not be possible after 30 November 2025. How should the weight be handled and stored? Handle the weight using the knob form to avoid contact with the calibration surface, clean with a soft, lint‑free cloth, and store in a protective case to prevent contaminants and mechanical damage. What is the weight made from and why does that matter? The weight is made from polished stainless steel, providing corrosion resistance and a stable surface that preserves metrological properties over time. For which applications is this single weight intended? This single calibration mass is intended for use in laboratories, inspection rooms and professional workshops for verification and adjustment of class‑appropriate balances and scales. Metav Werkzeuge, Emmerich am Rhein, Germany — Email: info@metav-werkzeuge.com — Tel: +49 2822 7131930
50 kg Weight Basket For Block Or Test Weights, OIML Class M1, Stainless Steel - KERN
Combine robust stainless‑steel construction with OIML Class M1 calibration and a time‑saving single‑step weighing process for efficient verification of heavy scales. Order the weight basket directly via Metav Werkzeuge or ask our consultants if needed. Weight Basket for Calibration Weights KERN 347-052-010 — stainless steel, OIML Class M1 The weight basket for block weights, adjusted to OIML Class M1, designed for rapid checks of floor scales, pallet scales and crane scales OIML Class M1 calibration ready Bead‑blasted stainless steel construction Saves time by placing basket and weights in one step Maximum combined load up to 250 kg Faster verification for heavy weighing equipment The calibrated basket is engineered to streamline routine checks of heavy weighing systems. Calibrated to OIML Class M1, this load carrier holds a nominal 50 kg basket weight and accepts standard control weights arranged as 20×10 kg or 10×20 kg, enabling a single lift test that greatly reduces scale downtime. The clear numeric specification and standardised calibration class provide a measurable basis for compliance checks and tranquil traceability during internal audits. Durable build for workshop and industrial environments Constructed from stainless steel with a bead‑blasted finish, the carrier resists workshop wear and is straightforward to clean after daily use. The material choice reduces corrosion risk and preserves the geometry of the basket, which supports consistent measurement behaviour over time. This robust design also functions as an integrated storage solution for control weights, preventing mixed handling and protecting mass pieces between checks. Practical handling that reduces handling errors and cost By allowing both the basket and the control weights to be set on the scale in one operation, the system minimises manual handling and the associated risk of dropping or misplacing masses. Fewer handling steps translate into lower operational cost and a quicker verification cycle for production or logistics teams. Alternative OIML classes are available on request, offering flexibility for workshops with differing conformity needs and enabling long‑term adaptation without replacing the base carrier. Contact Metav Werkzeuge today for tailored advice and reliable delivery from Emmerich — request the KERN 347-052-010 weight basket or discuss alternative OIML accuracies with our consultants Technical Data Article number: 347-052-010 SKU: 347-052-010 Manufacturer: KERN GTIN: 4045761225039 Country of origin: DE Numbers / Core Technical Data Weight value: 50 kg Possible loading: 20×10 kg or 10×20 kg Max. total weight (basket incl. weights): 250 kg Special features / Versions Material: stainless steel, bead‑blasted Calibrated to OIML Class M1 Suitable for testing floor scales, pallet scales, weighing trolleys, crane scales Tariff number: 84239090 FAQ What maximum load can the basket carry? The KERN weight basket 347-052-010 has a nominal basket weight of 50 kg and supports a maximum combined load of up to 250 kg for scale verification tasks. Is the carrier calibrated and to which class? The carrier is delivered calibrated to OIML Class M1, providing standardised traceability for routine checks of heavy weighing equipment. Which materials are compatible with this weight basket? The basket is intended as a carrier for calibrated block and control weights used to test scales; it is suitable for use with the standard metal control weights specified as 10 kg increments in the described loading configurations. Can other OIML accuracy classes be supplied? Yes, other OIML accuracy classes are available on request; please state the required class when enquiring so appropriate calibration can be arranged. Does the basket also serve as storage for weights? Yes, the design permits simultaneous storage and transport of the control weights, enabling the basket and masses to be placed on the scale in one step which reduces handling time and risk. KERN — Germany — distribution via Metav Werkzeuge (info@metav-werkzeuge.com, +49 2822 7131930)
50 kg Weight Basket For Block Test Weights Adjusted To OIML Class M1, Stainless Steel - KERN
Take advantage of the combination of precise OIML class M1 calibration, robust stainless steel construction and a time‑saving handling concept to streamline high‑load scale checks; order the weight basket directly via Metav Werkzeuge or ask our consultants if needed. Weight basket (346-055-004) – weight basket for block weights, calibrated to OIML class M1 by KERN The Weight basket (346-055-004) is a standardised test basket designed for checking heavy floor scales, pallet scales, weighing trolleys and crane scales, and for secure storage of block and test weights in demanding industrial environments. Calibrated to OIML class M1 Holds up to 250 kg total weight Stainless steel, glass bead‑blasted finish Saves handling time by carrying weights and basket together Faster, more efficient high‑load weighing checks The basket is designed to accelerate routine verifications of high‑capacity weighing equipment. Calibrated to OIML class M1, the solution delivers consistent reference mass for load verifications, which reduces downtime during maintenance and helps keep calibration cycles predictable. Using a single device that combines storage and transport of block weights with the actual test step supports a time‑saving workflow and lowers handling complexity when testing pallet scales or floor platforms. Built for workshop and industrial durability Constructed from stainless steel with a glass bead‑blasted surface, the basket resists workshop wear and provides corrosion protection in humid or abrasive environments. The robust build reduces the need for frequent replacement and minimises maintenance, offering a durable option that upholds dimensional stability under repeated loading. This construction translates into long service life and reliable performance where resilience matters most. Traceable accuracy for compliance and quality control Being supplied adjusted to OIML class M1 ensures the basket provides a traceable reference during conformity checks and internal quality procedures. The combination of a standardised calibration class and metal construction gives clear advantages for laboratories and production facilities that document measurement accuracy. The calibration class simplifies documentation and supports regulatory or internal audit requirements by providing an established accuracy benchmark. Practical handling that reduces process steps The design allows the basket to hold and secure block or test weights so that the basket and contents can be placed on a scale in a single operation, reducing manual handling and the associated risk of damage or injury. The basket supports a total load of 250 kg, enabling common test configurations without multiple lifts. Its layout and weight distribution are engineered to make positioning on large platforms straightforward, improving safety and repeatability in routine checks. For calibrated, time‑efficient weighing checks, contact Metav Werkzeuge about the KERN weight basket (SKU 346-055-004) — expert advice and order support are available via info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical data Article number: 346 SKU: 346-055-004 GTIN: 4045761225084 Manufacturer: KERN Origin: DE Facts Weight value: 50 kg Max. total weight: 250 kg OIML class: M1 Commodity code: 84239090 Special features Material: stainless steel, glass bead‑blasted Application: testing high‑load floor scales, pallet scales, crane scales Function: combined storage and testing of block/test weights Adjustment: supplied adjusted to OIML class M1 FAQ What is the intended use of the weight basket? The weight basket is intended for testing high‑load floor scales, pallet scales, weighing trolleys and crane scales and for secure storage of block and test weights during transport and inspection. Which calibration class is supplied with the basket? The basket is supplied adjusted to OIML class M1, providing a recognised accuracy level for routine verifications and quality documentation. What is the single weight value carried by the basket? Standard configuration uses a 50 kg weight value per block for the supplied basket configuration. How much total load can the basket carry? The design supports a maximum total load of 250 kg, allowing common multi‑block test sets to be used without additional lifting steps. What material is the basket made from and why does it matter? Manufactured from stainless steel with a glass bead‑blasted finish, the basket resists corrosion and workshop wear, which helps maintain dimensional stability and reduces maintenance needs. Manufacturer: KERN; Origin: Germany; Contact: not provided
50 mg Precision Calibration Weight Plate, OIML F2, Stainless Steel Polished, 0.12 mg Tolerance - KERN
Take advantage of accurate weighing, a durable polished stainless-steel finish and a compact plate form for reliable trace calibration in laboratory and workshop environments. Order the milligram weight directly via Metav Werkzeuge or ask our consultants if further technical information is required. KERN 338-06 Milligram weight — OIML F2 accuracy, polished stainless steel KERN 338-06 is a precision mass in plate form for trace weighing and calibration of high-resolution balances in laboratories and quality departments. OIML class F2 accuracy Nominal mass 50 mg Polished stainless-steel plate form Tolerance 0.12 mg High-accuracy performance for trace measurements The OIML F2 rating and a nominal value of 50 mg make this milligram mass suitable for fine calibration tasks where reproducibility is essential. With a stated tolerance of 0.12 mg, the mass provides a clearly defined error band that supports reliable verification of analytical and microbalances. The documented accuracy class helps laboratories meet routine traceability requirements and supports documented quality control procedures, enabling reproducible measurement outcomes. Robust materials and a compact design for safe handling Manufactured from stainless steel with a polished finish and executed in a flat plate shape, this mass is resistant to corrosion and simple to clean, reducing the risk of contamination that can affect milligram-level results. The plate form eases positioning on small balance pans and minimises handling errors. The smooth surface also reduces particulate adherence, which contributes to longer-term stability and consistent measurement conditions during repeated use. Calibration and storage guidance to preserve traceability For documented traceability, a DAkkS calibration is the recommended route and is suitable for most professional applications; note that statutory EC first verification for weights is no longer available after 30.11.2025. Given the high accuracy class, transport and storage in an appropriate case are advised to prevent contamination and mechanical damage. A dedicated case is recommended for safe handling and to maintain calibration intervals, especially when the mass is used in quality assurance routines. For laboratory-grade traceability and reliable handling, request the KERN 338-06 milligram weight through Metav Werkzeuge — our Emmerich-based specialists can advise on DAkkS calibration and the right storage case for your application Technical Data Article number: T338-A SKU: 338-06 GTIN: 4045761240278 Manufacturer: KERN Country of origin: CN Commodity code: 84239090 Facts Nominal mass: 50 mg OIML accuracy class: F2 Tolerance: 0.12 mg Shape: plate Material: stainless steel Special features Polished surface Milligram mass for trace calibration Recommended case for transport and storage DAkkS calibration recommended; EC first verification not possible after 30.11.2025 FAQ What calibration is recommended for this milligram mass? For documented traceability, a DAkkS calibration is recommended for the KERN 338-06 milligram weight; this meets the needs of most laboratory and quality-assurance applications. Can this weight be used on analytical balances? Yes, the 50 mg nominal mass in OIML class F2 is intended for verification and calibration of high-resolution analytical and microbalances, where the stated 0.12 mg tolerance is appropriate. How should the mass be stored between uses? The mass should be stored in a suitable case to avoid contamination and mechanical damage; a protective case preserves calibration and ensures consistent measurement results. What does OIML class F2 mean in practice? OIML class F2 defines the permissible error limits and ensures the mass is suitable for routine laboratory verification and calibration tasks requiring milligram-level accuracy. Is surface finish important for milligram weights? Yes, the polished stainless-steel finish reduces particle adhesion and corrosion risk, which helps maintain stability and repeatability for micro-scale measurements. Metav Werkzeuge, Emmerich am Rhein, Germany — eMail: info@metav-werkzeuge.com — Phone: +49 2822 7131930 — WhatsApp: +49 170 2837271
50 mg Precision Calibration Weight Plated Disc, OIML F1, Stainless Steel, 0.04 mg Tolerance - KERN
Precise calibration solution in the milligram range: the polished 50 mg stainless steel disc conforms to OIML F1 accuracy with a tolerance of 0.04 mg, delivering reliable traceability for laboratory and industrial balances; order through Metav Werkzeuge or consult our specialists for application advice and calibration options Milligram weight 328-06 by KERN — 50 mg, OIML F1, polished stainless steel disc A Milligram weight intended as a high-precision mass standard for laboratory calibration and industrial metrology tasks, supplied in disc form for stable placement and repeatable results KERN precision class OIML F1 Nominal mass 50 mg with 0.04 mg tolerance Polished stainless steel disc for stability DAkkS calibration recommended for traceability Exceptional accuracy for sensitive balances The polished stainless steel disc is manufactured to meet OIML F1 requirements, providing a nominal mass of 50 mg with an allowed deviation of 0.04 mg. This level of precision supports repeatable calibration results on analytical and semi-micro balances, reducing measurement uncertainty in routine checks. The compact disc geometry improves seating stability on balance pans and simplifies handling in controlled environments. For many quality-assurance workflows, the compact mass standard increases throughput by shortening stabilisation times while preserving metrological integrity. Traceability and calibration fit for regulated environments Designed for professional metrology, the weight is compatible with formal traceability chains when accompanied by a certificate. Note that from 30 November 2025 the EC initial verification of calibration weights will no longer be possible; therefore, a DAkkS calibration is recommended, which is equivalent for most applications and ensures documented traceability suitable for audits. The combination of KERN manufacturing quality and accredited calibration secures conformity with internal quality systems and external standards, supporting reliable measurement results across production and laboratory processes. Practical handling, storage and workshop suitability The disc form factor and polished finish reduce surface contamination and make cleaning straightforward. For preservation of the mass and accuracy, storage in a suitable case is advised — particularly because of the fine tolerance class. The robust stainless steel material offers resistance to corrosion under normal laboratory conditions and supports repeated use without rapid wear. Where diverse material testing is required, this mass standard integrates into existing calibration routines and helps maintain consistent performance of precision balances across shifts and locations. Contact Metav Werkzeuge for tailored advice on KERN mass standards, DAkkS calibration options and suitable storage cases from our Emmerich location Technical Data SKU: 328-06 Article number: T328-A GTIN: 4045761240360 Manufacturer: KERN Material: stainless steel Form: disc (plättchenform) OIML class: F1 Nominal mass: 50 mg Tolerance: 0.04 mg Origin: CN Tariff number: 84239090 Facts Nominal mass: 50 mg Tolerance: 0.04 mg GTIN: 4045761240360 Tariff number: 84239090 Special features Polished stainless steel finish Disc shape for stable seating OIML F1 accuracy class Recommended: DAkkS calibration Case recommended due to high precision FAQ What accuracy class does this weight comply with? The mass conforms to OIML F1 accuracy, suitable for high-precision calibration tasks requiring a nominal mass of 50 mg with a tolerance of 0.04 mg. Is a calibration certificate available for the weight? Yes — a DAkkS calibration is recommended and can be supplied for the KERN milligram weight 328-06 to ensure traceability and documented conformity for audits. Can the weight be used on analytical balances? The polished stainless steel disc is intended for analytical and semi-micro balances; its 50 mg nominal mass and 0.04 mg tolerance make it appropriate for sensitive balance checks. How should the mass be stored and handled? Store the disc in a protective case to prevent contamination and mechanical damage; the polished surface allows easier cleaning and helps maintain measurement integrity. Why is DAkkS calibration recommended instead of EC initial verification? From 30 November 2025 EC initial verification for calibration weights will no longer be possible; DAkkS calibration provides equivalent traceability for most applications and is therefore advised. KERN — Origin: CN — For further information contact Metav Werkzeuge: info@metav-werkzeuge.com, +49 2822 7131930
50 mg Precision Calibrator Weight Wire Form E1 Tolerance 0.004 mg Stainless Steel, Polished - KERN
Take advantage of the combination of OIML E1 accuracy, a nominal value of 50 mg and a polished stainless steel wire form for reliable milligram calibrations; order directly via Metav Werkzeuge or ask our consultants for accessory recommendations. KERN Milligram Weight 308-36 – OIML E1, 50 mg, stainless steel (wire form) A KERN 308-36 milligram weight in wire form designed for high-precision balance calibration and laboratory traceability. OIML class E1 for highest accuracy Nominal value 50 mg for milligram calibration Tolerance ±0.004 mg specified Polished stainless steel, wire form Consistent traceability for high-precision calibration The KERN 308-36 is manufactured to OIML E1 standards, offering a nominal value of 50 mg and a declared tolerance of ±0.004 mg. These specifications translate into measurable advantages for calibration routines: repeatable reference points, reduced measurement uncertainty and compliance with stringent metrological requirements. The declared tolerance should be used when calculating combined measurement uncertainty and when documenting traceability for quality systems. Robust materials and form to minimise handling effects The polished stainless steel construction and wire form reduce contact area and minimise adsorption of contaminants compared with bulk shapes. This design improves handling for microbalances and analytical balances where surface interactions can shift results. The finish supports routine cleaning and resists corrosion, helping to maintain the certified value over repeated use and handling. Correct handling and storage remain important to preserve the certification. Practical integration into laboratory workflows Integration into calibration programmes is supported by the weight's compact wire shape and standard OIML classification, which make it suitable for routine verifications and comparative checks. A protective case is recommended due to the high accuracy class; appropriate cases and accessories are available to help maintain calibration status and to simplify transport between workstations. Documentation of the weight's GTIN and origin supports inventory control and regulatory records. Contact Metav Werkzeuge today for supply of the KERN 308-36, advice on the recommended protective case and to discuss integration into existing calibration procedures – email info@metav-werkzeuge.com or call +49 2822 7131930 Technical Data Article number: 308-36 Manufacturer: KERN GTIN: 4045761002982 Tariff number: 84239090 Origin: DE Core technical data Nominal value: 50 mg Tolerance (OIML E1): ±0.004 mg OIML class: E1 Eclass: 32120103 Design & features Material: Stainless steel Form: Wire form Surface finish: Polished Protective case recommended FAQ How accurate is the weight for laboratory calibrations? The KERN 308-36 is an OIML E1-class milligram weight with a declared tolerance of ±0.004 mg, suitable for high-precision verifications and for use in uncertainty budgets. Which balances is this weight intended for? This milligram weight is designed for microbalances and analytical balances where a 50 mg reference mass is required to perform routine checks and calibrations. How should the weight be stored to preserve accuracy? Store the weight in a clean, dry protective case as recommended; this minimises contamination and handling effects and helps maintain the certified tolerance. Is the surface resistant to corrosion and easy to clean? The polished stainless steel construction offers good corrosion resistance and supports gentle cleaning methods appropriate for reference masses. Are accessories like cases available for transport and protection? A protective case is recommended for this high-precision weight; Metav Werkzeuge can advise on suitable etuis and accessory options Metav Werkzeuge, Emmerich am Rhein, Germany · info@metav-werkzeuge.com · Tel: +49 2822 7131930
50 mg Precision Caliper Test Weight, Platter Stainless Steel Polished, OIML E2 0.012 mg Tolerance - KERN
Take advantage of the combination of OIML Class E2 accuracy, a nominal value of 50 mg, and a polished stainless steel disc form for dependable analytical-balance calibration; order directly via Metav Werkzeuge or consult our specialists for application support. KERN 318-06 Calibration weight — 50 mg polished stainless steel disc The KERN 318-06 is a milligram calibration weight in disc form, designed for high-precision verification of analytical balances and laboratory scales under OIML Class E2 requirements. OIML Class E2 precision Nominal value 50 mg Polished stainless steel disc form Tolerance 0.012 mg Precision that supports traceable measurement results The weight meets OIML Class E2 requirements, offering a stated tolerance of 0.012 mg, which provides the repeatability and stability necessary for routine verification of analytical balances. Class E2 indicates suitability for high-resolution instruments and laboratory environments where small deviations can affect test results; this ensures procedural confidence and helps maintain measurement traceability when used alongside an appropriate calibration regime. The measurable tolerance supports risk-based quality control and reduces uncertainty in documented results. Robust design for careful handling and longevity Manufactured from stainless steel with a polished finish and produced in a disc form, the unit minimises contamination and surface wear, which assists in preserving mass integrity over repeated use. The geometry simplifies centring on balance pans and reduces handling-induced errors, while the polished surface aids cleaning and inspection. These design choices translate into lower maintenance effort and a reliable service life, supporting uninterrupted workflows in labs and inspection rooms where handling and environmental control matter. Application guidance and compliance considerations For the highest-level accuracy, a protective case is recommended due to the fine 50 mg nominal value and tight tolerance; a case helps prevent abrasion and particle deposition that would alter mass. Note that initial EU type-approval (EG-Erstichung) for calibration weights will not be possible after 30 November 2025; therefore, a DAkkS calibration is recommended for traceable certification and routine conformity checks. The combination of Class E2 accuracy and DAkkS-recognised calibration supports internal quality management and external audits, making the weight suitable for laboratories, calibration services and quality-control departments. Contact Metav Werkzeuge in Emmerich for tailored advice, DAkkS calibration options or to arrange supply of the KERN 318-06 milligram weight directly from our warehouse via email or phone Technical data Article number: T318-A SKU: 318-06 GTIN: 4045761240452 Manufacturer: KERN Origin: CN Core specifications Nominal value: 50 mg Tolerance (OIML E2): 0.012 mg HS code: 84239090 Special features Polished stainless steel Disc form OIML Class E2 Recommended: protective case for handling Recommended: DAkkS calibration FAQ What is the declared tolerance of this calibration weight? The declared tolerance for the KERN 318-06 milligram weight (OIML Class E2) is 0.012 mg, suitable for high-resolution analytical balance checks. Is a calibration certificate included with the weight? A DAkkS calibration is recommended for the KERN 318-06; please request calibration options when ordering to receive a traceable certificate. Which instruments are appropriate for use with this weight? The disc-shaped 50 mg weight is intended for analytical balances and high-precision laboratory scales that require OIML Class E2 reference masses. Can the weight be used for legal-for-trade verification? After 30 November 2025, EG first verification is no longer available for calibration weights; the KERN 318-06 should be used with DAkkS calibration for conformity and traceability purposes. How should the weight be handled and stored to preserve accuracy? Handle the KERN 318-06 with tweezers or gloves and store it in a protective case to prevent surface contamination and mechanical wear that could change its mass. KERN — Origin: China. Contact: info@metav-werkzeuge.com | +49 2822 7131930
50 mg Precision Caliper Weight Stainless Steel Plated, OIML Class M1, 0.4 mg Tolerance - KERN
Take advantage of the combination of high accuracy and durable stainless steel for reliable micro‑calibration results; order the calibration mass directly via Metav Werkzeuge or contact our consultants for tailored advice. KERN 348-06 Milligram weight (OIML M1, 50 mg) — polished stainless steel The KERN 348-06 milligram weight is a polished, disc‑shaped calibration mass for precision calibration of analytical and microbalances in laboratory and workshop environments. OIML class M1 accuracy 50 mg nominal value Polished stainless steel disc Tolerance 0.4 mg Accurate micro‑calibration for sensitive instruments The polished milligram mass offers OIML M1 conformity with a nominal value of 50 mg and a specified tolerance of 0.4 mg, ensuring consistent transfer standards for fine balances. Such classification means the mass is suitable for routine calibration and verification of instruments where milligram‑level accuracy is required. The stated tolerance provides a measurable performance limit, allowing comparison against balance resolution and ensuring that the calibration mass supports traceable adjustment and performance checks. Robust construction for repeatable results Manufactured from stainless steel with a polished finish and a compact disc shape, the mass resists corrosion and surface degradation that can affect long‑term stability. The material choice reduces adsorption of contaminants and eases cleaning, while the flat form factor simplifies handling with tweezers and placement on weighing pans. These design aspects contribute to repeatable measurements and reduce the risk of damage during routine use in industrial and laboratory settings. Traceability and calibration recommendations The product is supplied as a milligram weight intended for use in calibration chains where traceability is required. Note that the EC first approval for calibration weights will no longer be possible from 30 November 2025; a DAkkS calibration is recommended and meets the needs of most applications. DAkkS calibration provides documented traceability and a calibration certificate suitable for quality systems, audit trails and conformity assessments, supporting reliable measurement processes. Practical integration into quality workflows Thanks to its small size and standardised class, the mass integrates into existing calibration procedures and quality control routines without extensive adaptations. The polished surface and clear nominal marking facilitate identification and handling during multi‑step calibration sequences. When included in regular calibration schedules, such a precision mass helps to maintain measurement integrity, reduce drift in instrument readings and support compliance with internal and external quality requirements. Order the KERN 348-06 milligram weight via Metav Werkzeuge for reliable micro‑calibration; contact our Emmerich team at info@metav-werkzeuge.com or +49 2822 7131930 for calibration and delivery guidance. Technical data SKU: 348-06 Manufacturer: KERN GTIN: 4045761240186 HS code: 84239090 Core data Nominal value: 50 mg OIML class: M1 Tolerance: 0.4 mg Special features Material: stainless steel Shape: disc (plättchen) Finish: polished Origin: CN Recommendation: DAkkS calibration FAQ What accuracy class does this calibration mass have? The KERN 348-06 is classified as OIML M1, suitable for routine calibration of analytical balances and similar precision instruments. What is the nominal value and tolerance of the mass? The nominal value is 50 mg with a tolerance of 0.4 mg, as specified for the product. Is a specific calibration certificate recommended for this weight? A DAkkS calibration is recommended for almost all applications and offers documented traceability comparable to former EC first approvals. What material and finish are used for the weight? The weight is made from stainless steel and supplied with a polished finish, designed to resist corrosion and simplify cleaning. Can this mass be used in regular workshop calibration routines? Yes; the disc‑shaped design and OIML M1 classification make it suitable for integration into standard calibration and quality control workflows. Metav Werkzeuge, Emmerich am Rhein, info@metav-werkzeuge.com, +49 2822 7131930
500 g Calibration Hook Weight, OIML Class M1, Stainless Steel Turned, 25 mg Tolerance - KERN
Take advantage of a precise OIML M1 calibration standard combined with a turned stainless-steel finish and compact hanging design for reliable routine verification of weighing instruments. Order the weight directly via Metav Werkzeuge or consult our technical advisers for application-specific guidance. KERN 347-096 Hook Weight — OIML M1, 500 g, turned stainless steel The KERN 347-096 is a precision hook weight designed for suspended calibration and verification of industrial and laboratory scales, providing traceable, repeatable mass values for routine checks and setup work OIML Class M1 certification Nominal value 500 g Turned stainless steel finish Hook design for suspended calibration Consistent calibration confidence for routine checks The main benefit of an OIML Class M1 weight is its predictable accuracy, which reduces uncertainty during routine verification of balances and scales. With a nominal value of 500 g and a guaranteed tolerance of 25 mg, the mass standard provides measurable, comparable results that support conformity checks and documented quality control. The certified accuracy makes it suitable for workshops and production environments where consistent weighing results underpin process reliability and product quality. Durable construction that stands up to repeated use Made from turned stainless steel, the weight combines corrosion resistance with a fine-machined surface that minimises wear and contamination. The hook design allows secure suspending of the mass during verification of hanging and platform scales, while the compact cylinder dimensions (59×93 mm) and a mass of 0.5 kg keep handling straightforward. Robust material and finish translate into long service life and stable metrological behaviour, lowering the need for frequent replacement and supporting continuous operation. Practical handling and integration into workflows Designed as a single calibration weight for verification tasks, the hook-style mass integrates easily into regular maintenance schedules and sampling procedures. The solid construction simplifies cleaning and storage and helps preserve the declared tolerance between calibrations. Suitable for use where OIML M1 standards are required, the mass keeps calibration sequences efficient and reduces downtime through fast, repeatable checks — ideal for calibration loops in production, quality control benches, and workshop environments. For accurate verification tasks, contact Metav Werkzeuge in Emmerich for tailored advice on the KERN 347-096 hook weight or to arrange purchase and delivery directly via our consultants at info@metav-werkzeuge.com Technical Data Article number: 347 SKU: 347-096 GTIN: 4045761256231 Manufacturer: KERN Facts Nominal value: 500 g Weight (kg): 0.5 Tolerance (OIML M1): 25 mg Cylinder dimensions: 59×93 mm Customs tariff number: 84239090 Origin: DE Special features OIML Class M1 Hook weight / hanging design Material: turned stainless steel Single calibration weight Fine-turned surface finish FAQ What accuracy can be expected from this type of calibration weight? The KERN 347-096 hook weight meets OIML Class M1 requirements with a declared tolerance of 25 mg, making it suitable for routine verification and accuracy checks in many industrial and laboratory contexts. Is the 347-096 suitable for suspended and platform checks? Yes, the hook configuration of the 347-096 is intended for suspended applications and can be used in procedures that require hanging masses; it is also used for certain platform checks where a suspended reference mass is applicable. How should the hook weight be stored to preserve accuracy? Store the mass in a clean, dry environment and avoid direct contact with corrosive agents; a protective case or drawer in the calibration area helps maintain the turned stainless-steel finish and declared tolerance. Can the KERN 347-096 be used for legal-for-trade calibrations? The weight is OIML Class M1, which is recognised for many verification tasks; whether it fulfils legal-for-trade requirements depends on the specific national regulations and the application—check local metrology rules for conformity. What materials and dimensions define the mass design? The mass is manufactured from turned stainless steel, shaped as a compact cylinder (59×93 mm) with a hook fitting, and a nominal mass of 500 g. KERN, Germany — Contact information not provided
500 g Calibration Weight Button And Cylinder Form OIML Class M3, Painted Cast Iron, 250 mg Tolerance - KERN
The combination of OIML class M3 accuracy, a 500 g nominal value and a painted cast iron design ensures reliable routine verification and long service life; order the KERN 366-93 via Metav Werkzeuge or ask our consultants for advice on workshop applications. KERN 366-93 Calibration weight, 500 g, OIML class M3 KERN 366-93 is a single calibration weight in knob-and-cylinder form for routine verification of scales and balances in workshops, production and quality-control benches Single calibration weight, Class M3 Nominal value 500 g for mid-range checks Painted cast iron for durable use Compact knob and cylinder shape, 46×68 mm Precise verification for everyday metrology tasks The OIML class M3 classification and a declared tolerance 250 mg provide a reliable reference for regular checks and functional tests of industrial scales. Because the nominal value is 500 g, the weight is well suited to mid-range verifications where a clear margin between test mass and instrument capacity is required. The declared tolerance allows straightforward traceability within routine quality procedures and supports compliance with shop-floor control routines without the overhead of laboratory-grade artefacts. Robust construction designed for workshop conditions Constructed from painted cast iron, the weight resists handling marks while keeping surface wear to a minimum; this increases service life and reduces the need for frequent replacements. The knob and cylinder shape gives ergonomic handling and fast positioning on pans and plates, while the compact dimensions (46×68 mm) make storage and transport within the workshop practical. These design choices translate into less downtime and a dependable reference mass for everyday operations. Clear classification and simple integration into processes Delivery as a single reference mass simplifies stock-keeping and measurement routines. The item conforms to recognised metrological standards, making it straightforward to include in calibration logs and inspection schedules. Labelling and the manufacturer's identification facilitate inventory tracking and specification compliance. For customers consolidating suppliers, this weight complements a broader metrology set-up from a single source, reducing procurement complexity. Contact Metav Werkzeuge in Emmerich for tailored advice on the KERN 366-93 and to arrange prompt delivery or consultation for scale verification projects Technical data Article number: 366 SKU: 366-93 Manufacturer: KERN GTIN: 4045761012080 Facts Nominal value: 500 g Weight (kg): 0.5 Tolerance: 250 mg Dimensions (cylinder): 46×68 mm Tariff number: 84239090 Special features Material: painted cast iron Form: knob and cylinder shape OIML class: M3 Country of origin: DE FAQ Is this weight suitable for routine shop-floor checks? Yes. The KERN 366-93 single calibration weight (OIML class M3, 500 g) is intended for routine verification and functional checks of industrial balances and scales. What accuracy can be expected from this calibration weight? The declared tolerance for the KERN 366-93 is 250 mg, which defines the permissible deviation for routine metrological applications. Can the weight be used for highly precise laboratory calibrations? No. The KERN 366-93 is an OIML class M3 reference mass suitable for workshop and production checks rather than laboratory-grade calibrations that require tighter tolerances. How should the painted cast iron surface be maintained? Gentle cleaning and dry storage are recommended to keep the painted surface intact; the KERN 366-93 benefits from careful handling to preserve its declared tolerance and finish. Manufacturer: KERN — Address: Germany — Contact: not specified in product data
500 g Calibration Weight Button Shape Fine-Turned Stainless Steel, OIML Class F2, 8 mg Tolerance - KERN
The combination of 500 g nominal mass, OIML Class F2 accuracy and a fine-turned stainless steel finish provides consistent calibration performance and long-term durability; order directly via Metav Werkzeuge or consult our specialists for application-specific guidance. KERN 337-09 calibration weight — 500 g, OIML Class F2, fine-turned stainless steel The KERN 337-09 is a 500 g Class F2 button-shaped calibration weight intended for precision verification of laboratory and industrial scales. OIML Class F2 certified Nominal mass 500 g with 8 mg tolerance Fine-turned stainless steel surface Button shape for straightforward handling Consistent measurement results through certified accuracy The primary benefit of an OIML Class F2 weight is reproducible accuracy during routine verification and calibration of precision balances. With a nominal value of 500 g and an OIML tolerance of 8 mg, this single weight supports traceable checks and reduces measurement uncertainty in quality-controlled environments. The classification indicates compliance with international metrological standards, enabling straightforward documentation of measurement capability and helping to fulfil audit and regulatory requirements. Robust design that minimises handling risk Manufactured from fine-turned stainless steel, the weight combines corrosion resistance with a smooth finish that reduces abrasion and contamination. The button form improves handling and positioning on small pans while lowering the risk of tipping or marring the balance pan. The compact dimensions (38 × 66 mm) and precise machining make the component suitable for frequent use in workshop and laboratory workflows, where both wear resistance and ease of handling contribute to lower maintenance overhead. Integrates simply into calibration workflows As a single calibration mass, the unit is intended for targeted checks or as part of a set when used alongside other nominal masses to cover a measurement range. The compact design and OIML classification simplify storage and documentation routines. For routine protection during transport and storage, a dedicated protective case is recommended to preserve surface integrity and measurement certainty. Using certified masses in scheduled verification cycles supports traceable measurement data and helps maintain production quality. For precise scale verification with the 500 g Class F2 weight from KERN, contact Metav Werkzeuge in Emmerich for tailored advice and to request the recommended protective case via info@metav-werkzeuge.com or +49 2822 7131930 Technical data Article number: 337 SKU: 337-09 GTIN: 4045761006447 Manufacturer: KERN Core specifications Nominal value: 500 g Mass: 0.5 kg Tolerance (OIML F2): 8 mg Dimensions: 38 × 66 mm eClass: 32120103 Tariff code: 84239090 Country of origin: Germany Design and special features Single weight (einzelgewicht) Button shape (Knopfform) Fine-turned stainless steel (Edelstahl feingedreht) OIML Class F2 conformity Recommended: protective case for precise weights FAQ What level of accuracy can be expected from this calibration weight? The 500 g KERN 337-09 is OIML Class F2 with a tolerance of 8 mg, providing a defined accuracy suitable for routine verification of precision balances. Is the material corrosion-resistant for laboratory use? Yes, the KERN 337-09 is manufactured from fine-turned stainless steel, offering good resistance to corrosion and ensuring a long service life under normal laboratory conditions. How should the weight be stored to maintain its accuracy? Store the weight in a protective case and handle it with gloves or tweezers; Metav Werkzeuge recommends using a suitable etui to prevent surface damage and contamination. Can this weight be used alone for balance verification? A single 500 g mass is suitable for targeted checks; for full-range verification, the mass may be used in combination with other nominal weights according to the laboratory’s calibration procedure. Does the product come with traceability documentation? The KERN 337-09 is specified as OIML Class F2; for traceability documents or certificates, request available calibration or certification options when ordering from Metav Werkzeuge. Metav Werkzeuge, Emmerich am Rhein, Germany · info@metav-werkzeuge.com · +49 2822 7131930
500 g Calibration Weight Compact Polished Stainless Steel OIML E2, 0.8 mg Tolerance - KERN
Take advantage of high-precision measurement, traceable OIML E2 accuracy and a corrosion-resistant stainless finish for dependable calibration results; order the calibration weight directly via Metav Werkzeuge or ask our consultants if needed. KERN 316-09 calibration weight — 500 g, OIML class E2, polished stainless steel A KERN 316-09 calibration weight designed for laboratory and workshop calibration of precision scales, presented in a compact, polished stainless-steel format for stable routine use OIML class E2 accuracy Nominal mass 500 g Polished stainless-steel finish Compact form for easy storage Ensure measurement certainty with class E2 accuracy The KERN 316-09 is manufactured to OIML E2 specification, providing a nominal mass of 500 g and a declared tolerance of 0.8 mg. Such precision reduces measurement uncertainty when calibrating analytical and precision balances, enabling reproducible results and reliable documentation. The class designation indicates suitability for metrology tasks where tight tolerances are required, helping maintain process control and compliance with internal quality procedures. Durable surface and compact design for consistent handling Constructed from polished stainless steel, the mass resists surface contamination and oxidation, which supports long-term stability of the reference value. The compact form is easier to handle and store than bulkier standards, lowering the risk of accidental knocks or surface damage during routine use. A smooth finish simplifies cleaning and minimises the transfer of residues that could alter mass values, so scheduled checks remain effective and less time-consuming. Practical dimensions that aid repeatable procedures With a cylinder footprint of 38 × 58.5 mm, the weight occupies minimal bench space while remaining ergonomic for manual manipulation and placement in weighing pans. The reduced profile assists in creating standardised measurement setups and faster turnaround for calibration cycles. For high-accuracy tasks, recommended accessories include a protective case to prevent contamination and mechanical wear between uses, supporting longer calibration intervals and fewer corrective actions. Where this mass standard delivers business value This compact stainless-steel mass is well suited to calibration laboratories, production quality departments and specialist workshops that require traceable reference masses for in-house verification and routine checks. By using a class E2 standard, teams can lower the risk of out-of-tolerance readings, reduce rework and support consistent product quality. The combination of accuracy, robustness and compact handling contributes directly to more efficient metrology workflows and reduced downtime. For assured traceability and long-term stability, secure the KERN 316-09 calibration weight through Metav Werkzeuge — contact our consultants at info@metav-werkzeuge.com or +49 2822 7131930 Technical data Article number: 316 SKU: 316-09 GTIN: 4045761094918 Manufacturer: KERN Facts Nominal mass: 500 g OIML class: E2 Tolerance: 0.8 mg Weight: 0.5 kg Dimensions (cylinder): 38 × 58.5 mm Special features Material: polished stainless steel Form: compact form Origin: DE FAQ What level of accuracy does this calibration mass provide? The KERN 316-09 calibration weight meets OIML E2 requirements with a declared tolerance of 0.8 mg, making it suitable for precision calibration tasks where tight measurement uncertainty is needed. Is the polished stainless-steel surface suitable for regular laboratory use? Yes, the polished stainless-steel finish on the KERN 316-09 is chosen for corrosion resistance and ease of cleaning, supporting repeatable results in laboratory and workshop environments. Are there storage recommendations for this weight? Using a protective case is recommended for the KERN 316-09 because the tight tolerance benefits from reduced contamination and mechanical wear; Metav supplies suitable etuis as accessories. Can this mass be used to calibrate analytical balances and industrial scales? The class E2 specification of the KERN 316-09 makes it suitable for calibrating many precision and analytical balances as well as for routine verification in industrial metrology where E2 accuracy is required. KERN – Germany · Sales via Metav Werkzeuge: info@metav-werkzeuge.com · +49 2822 7131930
500 g Calibration Weight Knob Form OIML Class M3 Stainless Steel Turned, 250 mg Tolerance - KERN
Reliable choice for routine verification: the combination of OIML Class M3 accuracy, a 500 g nominal mass and fine‑turned stainless steel construction ensures dependable performance for everyday calibration tasks; order the calibration weight directly via Metav Werkzeuge or ask our consultants for tailored advice. Calibration weight 367-09 (Knob, 500 g, OIML Class M3) by KERN A calibration weight 367-09 in knob form for routine balance checks and simple calibration tasks in workshops and production environments. OIML Class M3 accuracy 500 g nominal mass Fine‑turned stainless steel Knob form for easy handling Consistent accuracy for everyday calibration This knob-shaped mass standard is specified as OIML Class M3, with a declared tolerance of 250 mg, making it suitable for routine verification of laboratory and industrial balances where traceable high-precision standards are not required. The 500 g nominal mass provides a stable reference point for mid-range scales, and the clear class marking supports straightforward conformity checks. For practical users, the combination of class and tolerance offers a predictable performance level that simplifies maintenance intervals and in-house verification regimes. Durable design that eases handling and storage Manufactured from fine‑turned stainless steel, the single-piece design resists corrosion and wear under normal workshop conditions, reducing the need for frequent replacement. The knob form improves manual handling and reduces the risk of surface contamination compared with flat designs, while the compact cylinder size of 38×62 mm saves storage space and keeps the working area tidy. The robust finish also helps preserve the mass over many inspection cycles, supporting consistent weighing results and lower lifetime handling efforts. Practical applications and integration into workflows As a single calibration mass, the weight is intended for routine checks, spot verifications and as part of in-house calibration sets for production and quality assurance environments. The KERN-built component, delivered as SKU 367-09, is a pragmatic choice for workshops, service technicians and quality departments that need an easy-to-use reference for daily balance control. Its form factor and material make it compatible with a wide range of mechanical and electronic balances, enabling quick comparative checks and simple procedural integration without complex handling tools. Contact Metav Werkzeuge in Emmerich for personalised advice on KERN calibration weights; email info@metav-werkzeuge.com or call +49 2822 7131930 for specification guidance and local availability Technical data Article number: 367 SKU: 367-09 GTIN: 4045761257283 Manufacturer: KERN Origin: DE Facts Weight: 500 g Weight (kg): 0.5 Tolerance (OIML): 250 mg Dimensions (cylinder): 38×62 mm OIML class: M3 Special features Material: fine‑turned stainless steel Form: knob shape Product group: single calibration weight Commodity code: 84239090 FAQ What does OIML Class M3 mean for routine checks? OIML Class M3 indicates the calibration weight meets the tolerance band defined for that class; for the 500 g unit the declared tolerance is 250 mg, which is suitable for everyday verification rather than highest‑precision laboratory calibration. Can the weight be used on any balance type? The 500 g knob weight is compatible with most mechanical and electronic balances used for routine checks; its compact 38×62 mm cylinder and knob form facilitate placement on standard pans. How should the calibration weight be maintained? Regular gentle cleaning with a soft, lint‑free cloth and handling with gloves preserves the fine‑turned stainless steel surface and helps maintain stable mass values during routine use. Is the 367-09 suitable for legal-for-trade calibrations? The 367-09 is specified as OIML Class M3, intended for in-house verification and workshop calibration; legal-for-trade requirements typically demand higher-class or certified reference masses—check applicable regulations. Does the manufacturer KERN provide certification or documentation? KERN supplies a precision‑manufactured single weight; for specific calibration certificates or traceability documentation, request details when purchasing through Metav Werkzeuge. KERN — Germany
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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