Ensure weighing accuracy with certified calibration weights
Calibration weights are precision mass artefacts used to verify, adjust and document scale performance, providing process security and repeatable results in production, quality assurance and laboratories. They come in defined nominal values and accuracy classes such as E1, F1 and M1, so you can match the right weight to the scale’s readability and application to avoid false confidence or unnecessary cost. Correct handling—using gloves or tweezers, storing weights in their case and avoiding contamination—keeps them reliable, while routine checks at multiple points in the weighing range reveal issues caused by vibration or temperature changes.
10 kg Calibration Weight, OIML F2 Knob, Turned Stainless Steel, 160 mg Tolerance - KERN
Take advantage of precision, robust stainless-steel construction and certified accuracy to maintain reliable measurement standards in production and laboratory environments; order the weight directly via Metav Werkzeuge or consult our specialists for application advice. KERN 337-14 — Calibration weight, 10 kg, OIML F2, fine-turned stainless steel The KERN 337-14 is a single calibration weight in knob form intended for verification and calibration of industrial and laboratory scales, especially where OIML F2 accuracy is required OIML class F2 certified Nominal value 10 kg Fine-turned stainless steel Knob shape for secure handling Precise calibration that reduces rework and uncertainty The mass standard delivers consistent, traceable results thanks to its OIML F2 classification and a nominal value of 10 kg with a tolerance of 160 mg. This level of accuracy supports reproducible calibration routines and helps to reduce measurement-related rejects and downtime. For operations where repeatable weighing performance is essential, the balanced tolerance provides a reliable baseline for routine checks and documentation. Robust stainless-steel construction for long service life Manufactured from fine-turned stainless steel, the weight resists corrosion and surface wear while maintaining geometric stability. The knob-shaped design allows safe placement and removal on balances with minimal handling errors, reducing the risk of contamination or accidental knocks. These material and design choices extend the working life of the mass standard and lower the total cost of ownership through fewer replacements. Compliance and practical handling for everyday workflows Certified as OIML class F2, the weight meets recognised international tolerances and is suitable for routine calibrations in workshops and quality departments. The 160 mg tolerance is clearly stated and enables straightforward comparison against specification limits when documenting conformity. A protective case is recommended for storage and transport to preserve accuracy during periods of non-use and to simplify traceability management. Suited to labs, service technicians and inspection routines Designed as a single verification mass, the weight is appropriate for calibration tasks on testing benches, service calls and internal quality audits. Its construction and tolerance make it a practical choice where dependable mass references are required without the need for a complete set. Supplied by a reputable manufacturer, the unit supports standardised procedures and contributes to consistent measurement quality across production and maintenance workflows. Contact Metav Werkzeuge in Emmerich for personal advice on integrating this KERN 337-14 calibration weight into existing calibration plans or to arrange supply and secure packaging Technical data Article number: 337 SKU: 337-14 GTIN: 4045761006553 Manufacturer: KERN Country of origin: DE Facts Nominal mass: 10 kg Tolerance (OIML F2): 160 mg Dimensions (cylinder): 100 × 178 mm Harmonised system code: 84239090 Special features Material: fine-turned stainless steel Shape: knob form Class: OIML F2 single weight Recommended accessory: protective case for storage and transport FAQ What is the accuracy class of this calibration weight? The calibration weight is certified as OIML class F2, providing a tolerance of 160 mg at the nominal value of 10 kg, suitable for routine verification tasks. Can this weight be used on laboratory and industrial scales? Yes, the 10 kg mass is suitable for both laboratory and industrial balances where an OIML F2 single weight is required for calibration or verification. How should the weight be stored to preserve accuracy? Store the weight in a protective case when not in use; this KERN 337-14 unit benefits from clean, dry storage and minimal handling to maintain its tolerance. What material is the weight made from and why does that matter? The weight is made from fine-turned stainless steel, which offers corrosion resistance and stable geometry, helping to sustain accuracy over time. Metav Werkzeuge, Emmerich am Rhein, Germany — Email: info@metav-werkzeuge.com — Tel: +49 2822 7131930 — WhatsApp: +49 170 2837271
10 kg Precision Calibration Weight Stainless Steel Fine-Turned Stackable, OIML Class M1 - KERN
Take advantage of precise, certified mass standards and robust stainless‑steel finishing to keep verification routines efficient and traceable; the stackable design reduces handling time and protects the weight when not in use. Order the product directly via Metav Werkzeuge or ask our consultants if needed. KERN 347-141 Calibration weight — OIML class M1, 10 kg, turned stainless steel The KERN 347-141 calibration weight is a stackable, OIML M1 reference mass designed for routine verification and calibration of industrial and laboratory scales. Calibration weight KERN 347-141, OIML class M1 Nominal mass 10 kg, tolerance 500 mg Turned stainless steel, corrosion resistant Stackable design for safe storage Assured accuracy for routine verification The OIML class M1 designation ensures the weight meets recognised international tolerances, with a nominal mass of 10 kg and a tolerance of 500 mg, providing a dependable reference for mid‑range calibrations. Such classification supports traceable verification of balances and scales used in production control and quality assurance. By specifying an OIML‑rated reference, measurement uncertainty from the mass standard is minimised, aiding compliance with internal quality processes and external audit requirements. Durable construction tailored to workshop environments Manufactured from turned stainless steel, the weight combines dimensional stability with resistance to corrosion and staining, extending service life in workshop and laboratory settings. The machined finish reduces dirt accumulation and simplifies cleaning after repeated handling. The stackable form factor secures individual weights during storage and transport, reducing the risk of damage and ensuring that reference masses remain within specification for longer periods. Integration into efficient calibration workflows As a control weight, the unit is suitable for quick spot checks and routine calibration cycles, supporting fast decision‑making on the shop floor. Its compact cylinder dimensions (136×132 mm) and clear identification via SKU and GTIN allow simple inventory handling and traceability within calibration logs. Using a certified reference mass reduces downtime for balances and contributes to reliable production output by enabling fast verification without the need for complex equipment or procedures. Reliability backed by recognised manufacturing Produced by KERN, the component reflects established manufacturing standards for precision masses. The combination of certified accuracy and rugged materials makes this product appropriate for maintenance departments, calibration labs and industrial metrology applications where dependable, repeatable results are essential. Pairing such a mass with documented calibration intervals supports consistent measurement quality across operations. For precise calibration and dependable stock supply, contact Metav Werkzeuge in Emmerich to arrange delivery of the KERN 347-141 calibration weight or to discuss suitability for specific scales — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 347 SKU: 347-141 Manufacturer: KERN GTIN: 4045761008915 Country of origin: DE Facts Nominal mass: 10 kg Tolerance (OIML M1): 500 mg OIML class: M1 Cylinder dimensions: 136×132 mm Commodity code: 84239090 Special features Material: turned stainless steel Stackable Application: control/calibration weight FAQ What level of accuracy does this calibration weight provide? The KERN 347-141 calibration weight is OIML class M1 with a tolerance of 500 mg on a 10 kg nominal mass, making it suitable for routine verification tasks and mid‑range calibrations. Is this weight suitable for use in both workshops and laboratories? Yes, the turned stainless‑steel construction and stackable design make the weight robust enough for workshop environments while offering the precision required in laboratory verification routines. How does the stackable design benefit storage and handling? Stackability reduces the footprint during storage, protects individual masses from impact, and simplifies inventory management, helping to maintain the condition and accuracy of the weights. Which identifiers confirm the product and origin? The product is supplied by KERN (SKU 347-141) with GTIN 4045761008915 and is marked with country of origin DE. Can this weight be used for daily control checks on production scales? Yes, as a control weight with OIML class M1 specification and a 10 kg nominal mass, it is appropriate for routine spot checks and ongoing verification of industrial scales. KERN, Germany, GTIN 4045761008915
10 kg Precision Check Weight Stackable, Polished Stainless Steel, OIML Class F1 - KERN
Benefit from consistent measurement results thanks to OIML F1 accuracy, a polished stainless steel surface and a stackable design for safe storage — order directly via Metav Werkzeuge or consult our specialists for accessory recommendations such as a protective etui. KERN 327-141 calibration weight — OIML F1, 10 kg, polished stainless steel The KERN 327-141 is a stackable control weight for precise verification and routine checks of laboratory and workshop scales OIML class F1 certified accuracy 10 kg nominal value Polished stainless steel finish Stackable design for secure storage Reliable accuracy for routine checks and calibrations Designed for consistent repeatability, this calibration weight meets OIML F1 specifications with a declared tolerance of 50 mg, making it suitable for routine verification and control tasks where tight tolerances are required. The 10 kg nominal value provides a practical reference point for a wide range of industrial and laboratory scales. By choosing a weight with certified class and documented tolerance, firms reduce uncertainty in measurement results and support quality control processes with objective, comparable data. Robust finish and practical handling that protects investment The polished stainless steel construction resists corrosion and retains its surface integrity under regular use, which reduces maintenance effort and extends service life. Its button form and compact cylinder dimensions (136×132 mm) enable secure placement and easy handling on balances and comparison stands. The stackable design saves bench or storage space and supports organised storage routines; paired with a suitable protective etui, the handling risks during transport and storage are minimised. Traceability and conformity support for regulated workflows With the EG initial verification no longer available after 30.11.2025, a DAkkS calibration is recommended for most applications to ensure traceability and documented conformity. The weight is manufactured by KERN in Germany and is suitable as a control weight in calibration loops, audits and internal quality assurance. For facilities requiring documented measurement chains, professional calibration and appropriate documentation help to satisfy certification and inspection demands while maintaining measurement confidence. For professional advice on suitable accessories or calibration options, and to order this control weight via Metav Werkzeuge, please contact our consultants who will guide on etui selection and DAkkS services Technical data Article number: 327 SKU: 327-141 GTIN: 4045761004856 Manufacturer: KERN Origin: DE Specifications Nominal weight: 10 kg Tolerance (OIML F1): 50 mg Dimensions (cylinder): 136×132 mm Form: Button shape Materials & features Material: Polished stainless steel Stackable ECLASS: 32120103 Tariff code: 84239090 FAQ What accuracy class does this calibration weight belong to? The calibration weight is specified as OIML F1, with a declared tolerance of 50 mg, suitable for precise control measurements. Is the 10 kg weight suitable for laboratory and workshop use? Yes, the 10 kg nominal value and robust polished stainless steel design make this control weight suitable for both laboratory and workshop verification tasks. Is a calibration certificate available and what is recommended? A DAkkS calibration is recommended for traceability and documented conformity; Metav Werkzeuge can advise on DAkkS services for the KERN 327-141. Can the weight be stacked for compact storage? The unit features a stackable design that enables secure, space-saving storage when multiple weights are used together. Are protective cases recommended for this precision weight? Due to the fine tolerance of the weight, a protective etui is recommended to reduce handling damage and preserve accuracy; Metav Werkzeuge can suggest appropriate cases. KERN — Germany. Metav Werkzeuge, Emmerich am Rhein. Email: info@metav-werkzeuge.com | Tel: +49 2822 7131930 | WhatsApp: +49 170 2837271
10 kg Precision Control Weight Three-Point Stainless Steel Fine-Turned, OIML F2, 160 mg Tolerance - KERN
Benefit from the combination of OIML class F2 accuracy, a 10 kg nominal mass and a finely turned stainless steel finish to achieve repeatable calibration results; order the reference weight directly via Metav Werkzeuge or consult our specialists for accessory recommendations. KERN 337-141 Calibration Weight – 10 kg, OIML class F2, finely turned stainless steel A KERN 337-141 calibration weight designed for traceable verification of balances and scales in laboratories and workshops. OIML class F2 accuracy Nominal value 10 kg Finely turned stainless steel Stackable for compact storage Precision that ensures traceable results The calibration weight is specified as OIML class F2, with a nominal mass of 10 kg and a declared tolerance of 160 mg, making it suitable for precise verification tasks in quality control and laboratory environments. Class F2 denotes a defined maximum permissible error for reference masses used to check analytical and precision balances; this guarantees that adjustments and routine checks are performed against a test mass with measurable and certified limits. Using a weight with these specifications supports documented traceability and simplifies internal audit trails. Robust finish for consistent handling Manufactured from finely turned stainless steel, the reference mass resists corrosion and surface wear, which helps maintain its metrological characteristics over time. The smooth finish reduces contamination and makes careful handling straightforward during calibration runs. The product is also stackable, enabling compact storage and reduced risk of accidental damage when multiple weights are kept together. The combination of material quality and machining method contributes to stable repeatability during repeated verification procedures. Practical recommendations for measurement workflows For reliable long-term use, store the calibration weight in a protective case to avoid surface marks and minimise handling contamination; a case is particularly recommended for weights in the F2 class to preserve accuracy. When performing calibrations, allow the weight to reach room temperature and handle it with clean gloves or tweezers to avoid oil transfer. Integrating this reference mass into regular maintenance schedules reduces adjustment time for balances and supports consistent measurement results across production and inspection routines. Select the KERN 337-141 for dependable verification and contact Metav Werkzeuge in Emmerich for accessory recommendations, secure supply and specialist advice (info@metav-werkzeuge.com | +49 2822 7131930) Technical data Article number: 337 SKU: 337-141 GTIN: 4045761006577 Manufacturer: KERN Country of origin: Germany Facts Nominal value: 10 kg Tolerance (OIML F2): 160 mg Dimensions (cylinder): 136×132 mm Mass: 10 kg Special features Material: finely turned stainless steel Product category: single calibration weight Product group: OIML F2 Stackable Harmonised System number: 84239090 FAQ What level of accuracy does this reference weight provide? The KERN 337-141 is classified as OIML class F2 with a tolerance of 160 mg, making it suitable for verification of precision and laboratory balances where class F2 is required. Is the weight suitable for regular calibration routines in a workshop environment? Yes. The 10 kg calibration weight is intended as a control mass for routine checks and adjustments of balances in workshops and laboratories, offering repeatable results due to its material and machining. How should the calibration weight be stored to preserve accuracy? A protective case is recommended for the KERN 337-141 to avoid surface damage and contamination; store in a dry, temperature-stable environment and handle with gloves or tweezers. What is the material and why does it matter? The weight is made from finely turned stainless steel, which ensures corrosion resistance and a stable surface finish—both important for preserving metrological properties over time. Can multiple weights be stored together safely? Yes. The design is stackable, which allows compact storage of multiple weights while helping to protect surfaces when combined with suitable protective cases. Metav Werkzeuge, Emmerich am Rhein — info@metav-werkzeuge.com | +49 2822 7131930 | WhatsApp: +49 170 2837271
10 kg Precision Test Weight Button Shape Polished Stainless Steel, OIML E2 16 mg Tolerance - KERN
Combine OIML class E2 accuracy, a 10 kg nominal mass and a polished stainless-steel finish for dependable calibration results; order the calibration weight directly via Metav Werkzeuge or consult our advisors for tailored calibration options. KERN 317-14 — Calibration weight, OIML class E2, 10 kg, polished stainless steel The KERN 317-14 is a precision single calibration weight designed for balance verification and laboratory checks, featuring a knob form for safe handling and a corrosion-resistant polished stainless-steel finish. OIML class E2 accuracy, tolerance 16 mg Nominal mass 10 kg with knob form Polished stainless steel for longevity DAkkS calibration recommended for traceability Consistent measurement performance for certification and routine checks The calibrated mass delivers OIML class E2 performance with a specified tolerance of 16 mg, ensuring repeatable, legally relevant verification results for mid-range balances and precision scales. This level of accuracy directly supports traceable measurement chains and reduces uncertainty in weight-controlled processes. The combination of a clearly defined nominal mass (10 kg) and tight tolerance simplifies documentation for quality management systems and enables faster decision-making when checking instrument drift or performing routine verification. Robust handling and corrosion resistance that protect measurement integrity A knob form design provides secure handling during calibration cycles, reducing the risk of contamination or accidental contact with sensitive surfaces. Constructed from polished stainless steel, the mass resists oxidisation and surface degradation, which helps to maintain its calibration state over repeated use. The finish also eases cleaning and storage procedures, lowering the maintenance effort required in demanding workshop or laboratory environments while preserving the mass’s metrological stability. Calibration pathway and regulatory guidance for traceability As an alternative to first-entry EC verification, a DAkkS calibration is recommended for nearly all applications, delivering accredited traceability to national standards. Note that EC initial verification of weights will not be possible after 30 November 2025; planning an accredited calibration route ensures continued compliance. The mass’s design and nominal value make it suitable for establishing calibration chains, reference checks and periodic recalibration schedules that align with internal quality requirements and external audits. For certified calibration and practical advice on the KERN 317-14, contact Metav Werkzeuge in Emmerich for DAkkS options and storage recommendations — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 317 SKU: 317-14 Manufacturer: KERN GTIN: 4045761003767 Origin: DE Facts Nominal mass: 10 kg Tolerance (OIML E2): 16 mg Dimensions (cylinder): 100×185 mm Tariff number: 84239090 ECLASS: 32120103 Special features Material: polished stainless steel Form: knob form OIML class: E2 Recommendation: DAkkS calibration available Storage note: case recommended for this weight Regulatory note: EC initial verification not possible from 30.11.2025 FAQ What accuracy class does this calibration weight meet? The KERN 317-14 meets OIML class E2 with a tolerance of 16 mg, suitable for medium-accuracy balance verification. Is the material suitable for workshop use and easy cleaning? Yes. The polished stainless-steel construction of the 317-14 resists corrosion and is straightforward to clean, helping to preserve calibration integrity. Can this weight be used for traceable calibrations? A DAkkS calibration is recommended for traceability; the KERN 317-14 can be supplied and documented to support accredited calibration chains. What handling features reduce contamination risk? The knob form design provides a secure grip for safe handling and minimises direct contact with the calibration surface of the 317-14. Are storage accessories recommended? For this accuracy class, a protective case is recommended; Metav Werkzeuge can advise on compatible etuis and accessories. Metav Werkzeuge, Emmerich am Rhein, Germany — info@metav-werkzeuge.com · +49 2822 7131930 · WhatsApp +49 170 2837271
10 kg Precision Test Weight Knob Form, OIML Class M1, Stainless Steel Turned - KERN
Take advantage of the combination of OIML class M1 accuracy, a 10 kg nominal mass and a fine-turned stainless steel finish for reliable calibration cycles; order the KERN 347-14 calibration weight directly via Metav Werkzeuge or consult our advisors for DAkkS calibration options. KERN 347-14 — 10 kg calibration weight, OIML class M1, knob form A KERN 347-14 calibration weight designed for precise scale verification and routine laboratory or workshop checks. OIML class M1 accuracy Nominal mass 10 kg Fine-turned stainless steel finish Knob form for secure handling Consistent accuracy for dependable results The weight meets OIML class M1 requirements with a declared tolerance of 500 mg, providing a dependable reference for verification and quality control. This level of conformity reduces measurement uncertainty during routine calibrations and supports consistent process control across production or laboratory environments. By using a verified reference mass with a clear tolerance band, audits and internal checks become more straightforward, and measurement drift can be identified and corrected quickly, maintaining operational efficiency. Robust design that endures daily use Manufactured from stainless steel and precision turned, the mass offers resistance to corrosion and maintains surface integrity after repeated handling. The knob form simplifies placement and removal from weighing instruments, lowering the risk of accidental contact and preserving the mass value. Durable construction means fewer replacements and less downtime, so maintenance cycles remain predictable and workshop throughput is sustained. Traceability and calibration aligned with current standards With the EG declaration on calibration weights no longer possible after 30 November 2025, a DAkkS calibration is the recommended route for traceable documentation. A documented calibration route ensures compliance with internal quality systems and external audits. Choosing a traceable calibration service for this reference mass secures measurement history for long-term record-keeping and supports conformity assessments where documented evidence of accuracy is required. For traceable delivery and calibration options for the KERN 347-14, contact Metav Werkzeuge in Emmerich to arrange supply and DAkkS calibration tailored to application needs Technical data Article number: 347 SKU: 347-14 Manufacturer: KERN Core data Nominal mass: 10 kg OIML class: M1 OIML tolerance: 500 mg Cylinder dimensions: 100×185 mm Materials & features Material: stainless steel, fine-turned Shape: knob form Origin: DE GTIN: 4045761008892 Tariff code: 84239090 Note: DAkkS calibration recommended — EG declaration no longer possible from 30 November 2025 FAQ What level of accuracy does this calibration weight provide? The KERN 347-14 is graded OIML class M1 with a declared tolerance of 500 mg, suitable for routine verification and laboratory checks requiring traceable reference masses. Is this weight suitable for frequent handling in a workshop? Yes, the fine-turned stainless steel construction and knob form are designed for frequent use, offering durability and straightforward placement on scales. Can the KERN 347-14 be supplied with official calibration? A DAkkS calibration is recommended for traceable documentation; this weight can be supplied and calibrated according to current metrological practices. Does the weight require special storage or cleaning? Standard care for stainless steel masses applies: keep the surface clean and handle by the knob or with gloves to avoid deposits that could affect measurement. What does the note about EG declaration mean for users? EG declarations for calibration weights are no longer possible from 30 November 2025; obtaining a DAkkS calibration for this mass ensures continued traceability and documented conformity. Metav Werkzeuge, Emmerich am Rhein, Germany — Email: info@metav-werkzeuge.com — Phone: +49 2822 7131930 — WhatsApp: +49 170 2837271
10 kg Precision Test Weight, Button Shape, Polished Stainless Steel, OIML Class E1, 5 mg Tolerance - KERN
High-precision calibration with OIML class E1 accuracy, a practical polished stainless-steel knob and a compact cylindrical design delivers consistent, traceable results. The 10 kg nominal mass with a 5 mg tolerance supports exacting laboratory and calibration tasks. Order the KERN 307-14 directly via Metav Werkzeuge or consult our specialists for tailored advice. KERN 307-14 — 10 kg OIML class E1 calibration weight, polished stainless steel The KERN 307-14 is a single calibration weight designed for high-precision balancing and laboratory calibration, featuring a knob form for secure handling and a polished stainless-steel finish for durability and easy cleaning. OIML class E1 accuracy Nominal mass 10 kg Polished stainless-steel knob Tolerance ±5 mg Consistent traceability for precise calibration results The calibration mass is manufactured to OIML class E1, the standard expected in calibration laboratories where traceability and minimal uncertainty are required. The precise 10 kg nominal mass and the 5 mg tolerance mean fewer repeat measurements and clearer uncertainty budgets when recalibrating analytical and precision balances. Laboratories benefit from reliable test weights that minimise measurement drift and support accreditation demands, turning a single artefact into a stable reference for routine quality assurance. Robust, serviceable design for everyday laboratory handling The weight’s polished stainless steel construction combines corrosion resistance with an easy-to-clean surface, reducing contamination risk in sensitive environments. The knob form provides ergonomic handling and safer placement on pans during calibration cycles, while the compact cylindrical geometry (100×185 mm) fits a wide range of balance pans. These design choices lower handling errors and contribute to longer service life, making the weight a practical investment for busy metrology rooms and calibration services. Simple storage and handling guidance to protect accuracy Correct handling and storage extend calibration intervals and preserve the declared tolerance. Store the mass in a protective case recommended for high-precision weights and handle with gloves or forceps to avoid surface contaminants and mass shifts. Periodic visual inspection for damage or corrosion, combined with scheduled recalibration, keeps the mass within its OIML E1 specification and ensures ongoing confidence in measurement results. For precise laboratory calibration with KERN’s OIML E1 standard, contact Metav Werkzeuge in Emmerich to discuss stock availability and expert advice tailored to calibration requirements. Technical data Article number: 307 SKU: 307-14 GTIN: 4045761002784 Manufacturer: KERN Facts Nominal mass: 10 kg OIML class: E1 Tolerance: 5 mg Cylinder dimensions: 100×185 mm Materials & features Material: polished stainless steel Form: knob Origin: DE Tariff code: 84239090 FAQ What level of accuracy does this weight provide? The KERN 307-14 meets OIML class E1 requirements and offers a declared tolerance of 5 mg, making it suitable for high-precision calibration tasks in accredited laboratories. Which applications suit an OIML E1 10 kg weight? An E1-class 10 kg calibration mass like the KERN 307-14 is appropriate for calibrating precision balances and instruments where minimal measurement uncertainty is essential, including calibration laboratories and quality-control departments. How should the weight be handled to maintain its tolerance? Handle the polished stainless-steel mass by the knob only with clean gloves or suitable tools, store it in a protective case when not in use, and schedule regular recalibration to preserve the declared accuracy of the KERN 307-14. Does the material affect long-term stability? Yes. The polished stainless-steel surface resists corrosion and contamination, helping to maintain mass stability over time when combined with proper handling and storage practices. KERN — Germany
10 kg Slotted Test Weight, OIML Class M1, Fine-Turned Stainless Steel - KERN
Take advantage of precise verification with an OIML M1 reference mass and the robust, finely turned stainless steel finish for reliable routine calibrations; the slotted Type A design ensures secure mounting and broad compatibility with slotted carriers. Order the KERN 347-145 directly via Metav Werkzeuge or ask our consultants for specification advice. KERN 347-145 Calibration Weight – 10 kg, OIML M1, Slotted Type A The KERN 347-145 is a precision 10 kg slotted calibration weight intended for the verification and routine calibration of laboratory and industrial balances, offering a compact cylinder form for stable handling and clear traceability. OIML class M1 accuracy 10 kg nominal mass Slotted weight (Type A) design Finely turned stainless steel finish Reliable accuracy for routine verification The combination of OIML M1 classification and a specified tolerance of 500 mg provides a dependable basis for regular verification tasks and in-house checks. As a reference mass, this slotted calibration weight delivers a measurable standard that supports conformity with internal quality routines and third‑party audits; the defined tolerance helps quantify measurement uncertainty and ensures results remain within expected limits. Precision and repeatability are prioritised to reduce rework and maintain production flow. Durable design that simplifies handling Manufactured from stainless steel and finely turned to a smooth finish, the weight resists surface corrosion and retains its mass characteristics over time, supporting a long service life under normal workshop conditions. The slotted weight geometry (Type A) allows secure seating on standard carrier rods, minimising the risk of tilting during transfers and simplifying handling during calibration sequences. This robust construction translates into fewer replacements and predictable performance under repeated use. Compact dimensions for straightforward integration With a compact cylinder form of 100×159 mm and a nominal mass of 10 kg, the unit integrates easily into existing calibration rigs and fits standard slotted carriers Type A for immediate use. Compatibility with Type A carrier systems reduces the need for adapters and streamlines calibration procedures, helping to save time when performing multi‑point checks across different balances. The clearly defined physical attributes support safe storage and straightforward inventory management. Supply and quality assurance from Metav Sourced from a recognised manufacturer, the weight benefits from Metav’s quality filter and central European distribution: reliable stock management in Emmerich ensures consistent availability for workshops and service departments. Metav stands for the democratisation of precision, offering decades of metrology expertise and a broad range of measuring equipment that reduces supplier complexity. The combination of tested product quality and dependable logistics supports uninterrupted calibration programmes and responsible procurement. Select the KERN 347-145 via Metav Werkzeuge for assured calibration readiness — contact Metav Werkzeuge in Emmerich for technical guidance at info@metav-werkzeuge.com or by phone at +49 2822 7131930 Technical data Article number: 347 SKU: 347-145 Manufacturer: KERN GTIN: 4045761256408 Country of origin: Germany Facts Nominal mass: 10 kg Tolerance (OIML M1): 500 mg Cylinder dimensions: 100×159 mm Customs tariff no.: 84239090 Special features Material: finely turned stainless steel Design: slotted weight (Type A) OIML class: M1 Compatibility: compatible with all slotted carriers Type A Category: calibration weights FAQ What accuracy class does this calibration weight meet? The weight complies with OIML M1 accuracy class, providing a tolerance of 500 mg suitable for routine verifications. Is the slotted design compatible with standard carriers? Yes, the slotted configuration is Type A and is compatible with all slotted carriers Type A for straightforward mounting. What is the nominal mass and how is it stated? The nominal mass is 10 kg, presented as a single reference mass for balance checks and multi‑point calibration routines. What material is the weight made from and why is that relevant? The unit is made of finely turned stainless steel, offering corrosion resistance and dimensional stability which support long‑term traceability. Can this weight be used for routine in‑house calibration tasks? The KERN 347-145 is intended for routine verification and calibration of balances where M1 accuracy meets the laboratory or workshop requirements. KERN, Germany — Contact: not provided
10 kg Test Weight Block Eco, OIML Class M1, Painted Cast Iron - KERN
Combining OIML Class M1 accuracy with a robust painted cast‑iron construction, the 10 kg block delivers dependable calibration performance and straightforward handling for routine verification tasks. Order the KERN ECO block weight directly via Metav Werkzeuge or consult our specialists for procurement and application guidance. KERN ECO block weight 346-77 — 10 kg, OIML Class M1 The ECO block weight is a cast‑iron test weight for calibration and verification of industrial and laboratory scales, optimised for routine use and stable results. OIML Class M1 accuracy 10 kg nominal mass Painted cast-iron construction Compact block format for stable handling High-precision calibration for routine checks The block is specified to OIML Class M1, with a tolerance of 500 mg (0.5 g) at the declared nominal mass, which supports reliable calibration and conformity checks on a wide range of weighing instruments. This classification indicates traceable accuracy suitable for many industrial, trade and laboratory applications where repeatable measurement and documented tolerances are required. Using a defined calibration mass reduces downtime for checks and helps maintain consistent process control. Durable design that simplifies handling and storage Constructed from painted cast iron, the mass combines corrosion protection with a solid feel that resists wear from daily handling. The compact block shape provides a stable contact area and is easier to place on small pans or platforms than tall, slender weights. Fewer handling adjustments reduce the risk of incidental damage and help technicians complete verification routines more quickly, improving throughput in busy metrology rooms or workshops. Compliance, traceability and practical particulars The calibration mass is delivered as a single test weight with a clear nominal value of 10 kg and a clearly specified accuracy class, enabling straightforward documentation for internal quality records. The block format is especially practical for routine verifications where fast placement and removal are priorities. For ordering and inventory, the article is listed under SKU 346-77 and bears GTIN 4045761241688, aiding stock control and traceability in procurement processes. For procurement or technical advice on the KERN ECO block weight, contact Metav Werkzeuge in Emmerich for transparent delivery and expert guidance. Technical Data Article number: 346-77 Manufacturer: KERN SKU: 346-77 GTIN: 4045761241688 Country of origin: CN Facts Nominal mass: 10 kg OIML class: M1 Tolerance: 500 mg Commodity code: 84239090 Special features Painted cast-iron material Block format for stable placement Single calibration mass Intended for scale calibration and verification FAQ What level of accuracy does this calibration mass provide? The ECO block weight (KERN, SKU 346-77) conforms to OIML Class M1 with a stated tolerance of 500 mg, providing stable, traceable accuracy for routine calibration and verification tasks. Is the mass suitable for regular workshop use? Yes, the painted cast‑iron construction of the ECO block weight is designed for everyday handling and offers a durable surface that eases routine verification cycles. Can this weight be used for legal-for-trade applications? The OIML Class M1 designation indicates suitability for many industrial and laboratory applications; however, legal-for-trade requirements depend on local regulations and the specific application. How does the block format benefit handling compared with cylindrical weights? The compact block design gives a low centre of gravity and a broad, stable contact area, making placement quicker and reducing the risk of tipping or damage during frequent use. KERN; Origin: CN; GTIN: 4045761241688
10 kg Test Weight Compact Form Polished Stainless Steel OIML Class E2, 16 mg Tolerance - KERN
Benefit from OIML class E2 accuracy, a 10 kg nominal mass and a corrosion-resistant polished stainless steel compact form for dependable calibration results; order the calibration weight directly via Metav Werkzeuge or consult our specialists for application advice. KERN 316-14 calibration weight (Class E2), 10 kg, polished stainless steel A KERN 316-14 calibration weight designed for precise reference measurements in calibration labs and quality assurance, presented in a space-saving compact form. OIML class E2 certified accuracy 10 kg nominal mass Polished stainless steel, compact form Tolerance ±16 mg Dependable reference accuracy for traceable measurements The OIML class E2 rating guarantees a high level of precision appropriate for laboratory calibrations and verification of high-resolution balances. With a nominal mass of 10 kg and a tolerance of ±16 mg, this single reference mass reduces uncertainty in measurement chains and supports consistent calibration intervals. Using an E2-class reference helps to document measurement capability and to maintain control over weighing results in production monitoring and quality assurance. Robust, compact construction that suits tight workspaces The compact design minimises footprint in workbenches and calibration cabinets while the polished stainless steel surface offers resistance to corrosion and straightforward cleaning, which supports long-term stability of the reference mass. The compact form also simplifies handling and storage; for safekeeping and to preserve accuracy it is recommended to use an appropriate protective case. The finish and construction combine to lower maintenance needs and to ensure the mass retains its calibrated condition between handling. Integrates smoothly into calibration workflows and procurement Supplied by the established manufacturer KERN, this reference mass is intended for routine use in calibration laboratories, service departments and workshops that require a reliable standard for balances and scales. The SKU 316-14 aligns with common calibration procedures and can be recorded in asset inventories. Source and supply are managed via Metav Werkzeuge in Emmerich, which acts as a quality filter for the European market and offers procurement and advisory services for integration into existing quality management systems. Contact Metav Werkzeuge in Emmerich for tailored advice or to secure this KERN 316-14 calibration weight for the workshop or laboratory Technical Data Article number: 316 SKU: 316-14 GTIN: 4045761094956 Manufacturer: KERN Origin: DE Facts Nominal mass: 10 kg Tolerance: 16 mg Dimensions (cylinder): 100×158 mm Tariff number: 84239090 Special features OIML class E2 Material: polished stainless steel Form: compact form Single weight (individual test weight) Case recommended for storage FAQ What level of accuracy does this reference mass provide? The KERN 316-14 is specified as OIML class E2 with a tolerance of ±16 mg, making it suitable where E2-level precision is required for calibration tasks. Is the 10 kg mass suitable for calibrating high-precision balances? Yes, the 10 kg nominal mass is commonly used as a reference for higher-capacity precise balances; the E2 classification supports reliable transfer of accuracy to test instruments. What material is the weight made from and how should it be maintained? The weight is manufactured from polished stainless steel; maintain with a clean, lint-free cloth and store in a protective case to limit contamination and handling-related uncertainty. Are there recommended storage or handling accessories? A protective case is recommended for this weight to preserve its condition between uses and to reduce environmental influences during storage and transport. Where can calibration certificates or further documentation be obtained? For certificates, traceability documentation or specific certification options for the KERN 316-14, please contact Metav Werkzeuge for details and available documentation. KERN — Germany; Distributor: Metav Werkzeuge, Emmerich am Rhein — info@metav-werkzeuge.com | +49 2822 7131930
10 kg Test Weight Eco Form Polished Stainless Steel OIML F1, 50 mg Tolerance - KERN
Take advantage of the combination of OIML class F1 accuracy, polished stainless steel construction and an ergonomic Eco‑Form for dependable calibration results and straightforward handling. Order the test weight directly via Metav Werkzeuge or consult our specialists for application advice. KERN 326-14 test weight — 10 kg, OIML F1, polished stainless steel KERN 326-14 is a single calibration weight designed for precise verification of laboratory and industrial balances, suitable for routine checks and traceable control processes. OIML class F1 accuracy Nominal value: 10 kg Tolerance: 50 mg Polished stainless steel, Eco‑form Consistent accuracy for routine and accredited checks The emphasis of this calibration mass is on reproducible measurement certainty: its OIML class F1 rating and tolerance of 50 mg provide a clear, measurable basis for balance verification and routine quality assurance. For workshops and calibration labs that require documented performance, the precision class ensures compatibility with many verification procedures and internal control routines. The specification supports decision-making where traceable, standard‑based measurements are required rather than informal checks. Robust construction that eases handling and care Manufactured from polished stainless steel, the weight resists corrosion and is straightforward to keep clean, which helps maintain long‑term stability of the mass value. The Eco‑Form design offers a low‑profile, user-friendly geometry that facilitates safe placement on pans and reduces the risk of tipping. With cylinder dimensions of 100×183 mm, the geometry balances accessibility and compactness for standard laboratory and workshop scales. Durable materials combined with practical form reduce maintenance effort and support continuous operation. Seamless integration into calibration workflows The test weight is supplied as a single reference item with clear identifiers for inventory and documentation: SKU 326-14 and GTIN 4045761223622 simplify stock and traceability handling. Originating from Germany, the product suits professional environments where consistent supply and transparent product data are important. For companies consolidating their supplier base, this precision weight fits into standard measurement and verification processes and complements a wider metrology toolkit without requiring specialist adaptation. For precise calibration needs, rely on KERN quality — contact Metav Werkzeuge in Emmerich for tailored advice or to request the detailed datasheet at info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical data Article number: 326 SKU: 326-14 GTIN: 4045761223622 Manufacturer: KERN Origin: DE Tariff code: 84239090 Facts Nominal value: 10 kg Tolerance (OIML F1): 50 mg Dimensions (cylinder): 100×183 mm eClass: 32120103 Special features Material: polished stainless steel Form: ECO‑Form OIML class: F1 Product type: single test weight FAQ What accuracy class does this calibration weight meet? The calibration weight complies with OIML class F1, providing a tolerance of 50 mg suitable for many laboratory and industrial verification tasks. Is the weight suitable for regular workshop checks? Yes, the KERN 326-14 test weight is designed for routine verification and can be used for periodic control of balances and scales in workshops and labs. What material is the weight made from and why does it matter? The weight is made from polished stainless steel, which offers corrosion resistance and easy cleaning to preserve the mass value over time. How is the product identified for inventory purposes? Identification is provided via SKU 326-14 and GTIN 4045761223622, aiding traceability and stock management. KERN, Germany
10 kg Test Weight Hook Stainless Steel Fine-Turned, OIML M1 ±500 mg - KERN
Take advantage of the combination of certified accuracy, robust stainless-steel construction and a hook design that speeds suspended calibrations; order the calibration mass directly via Metav Werkzeuge or ask our consultants for application advice. KERN 347-146 Hook weight — OIML M1, 10 kg, turned stainless steel The KERN 347-146 is a precision OIML M1 hook weight designed for suspended calibration of industrial scales and balances in workshop and laboratory environments. OIML class M1 accuracy Nominal mass 10 kg Turned stainless steel construction Hook design for suspended calibration Tolerance 500 mg Reduce measurement uncertainty with certified accuracy The OIML M1 classification ensures the calibration mass meets internationally recognised tolerances, delivering repeatable results when verifying weighing equipment. As a 10 kg nominal mass with a declared tolerance of 500 mg, this calibration weight reduces measurement uncertainty in verification routines and routine checks. Using a certified mass simplifies documentation for quality systems and supports compliance with internal and external auditing requirements. Robust material and design for long service life Manufactured from turned stainless steel, the mass resists corrosion and maintains surface integrity under repeated handling. The hook configuration permits secure suspended mounting during calibration procedures, avoiding contact errors that can occur with plate-style masses. Durable machining and a turned finish contribute to stable performance over time, which minimises recalibration frequency and supports predictable maintenance planning. Practical integration into calibration workflows The hook form factor speeds the setup of suspended tests and is compatible with many industrial and laboratory balances. Clear nominal mass labelling and a compact footprint make the unit straightforward to store and deploy during routine checks. As a dedicated calibration mass, it complements a traceable set of standards and fits into a standardised calibration plan, helping maintain consistent measurement capability across multiple instruments. Trustworthy supply and expert partnership Metav stands for democratisation of precision: a supplier that combines decades of expertise with a comprehensive product range. The availability of this high-quality calibration mass from a central European quality filter in Emmerich ensures reliable supply and transparent order handling. The combination of certified accuracy, robust stainless-steel construction and dependable logistics supports uninterrupted production and precise measurement results. Contact Metav Werkzeuge in Emmerich for purchase, delivery options and expert advice on the KERN 347-146 hook weight Technical data SKU: 347-146 Article number: 347 GTIN: 4045761256262 Manufacturer: KERN Facts Nominal mass: 10 kg Tolerance (OIML M1): 500 mg Cylinder dimensions: 220×160 mm Special features Material: turned stainless steel Type: hook weight (suspended calibration) OIML class: M1 Origin: DE Tariff number: 84239090 FAQ What accuracy class does this calibration mass have? The KERN 347-146 hook weight is specified to OIML M1, providing the tolerance class typically required for industrial and many laboratory calibration tasks. Is the KERN 347-146 suitable for suspended calibration of large-capacity balances? Yes, the hook design of this calibration mass is intended for suspended applications and is well suited to verification routines for larger or industrial balances where a 10 kg nominal mass is required. How resistant is the material to corrosion and workshop wear? Manufactured from turned stainless steel, the KERN 347-146 offers good corrosion resistance and surface durability, reducing the need for frequent refurbishment. Can this calibration mass be used as a reference in a quality management system? As an OIML M1 class mass with declared tolerance, the KERN 347-146 can form part of a traceable set of standards used in documented calibration procedures. What documentation accompanies the calibration mass? The product is delivered as a precision calibration mass; for documentary requirements and calibration certificates, consult Metav Werkzeuge for the available certification and traceability options. Manufacturer: KERN — Germany. Dealer/Contact: Metav Werkzeuge, Emmerich am Rhein. eMail: info@metav-werkzeuge.com, Tel: +49 2822 7131930, WhatsApp: +49 170 2837271
10 kg Wooden Case For Custom Calibration Weights Unpadded, F2–M3 - KERN
Take advantage of a robust wooden construction and tailored compatibility with F2 + M3 calibration weights — ideal for bespoke sets up to 10 kg. Order directly via Metav Werkzeuge or consult our specialists for configuration and delivery from Emmerich. Wooden case KERN 335-090-200 — unpadded case for calibration weight sets, suitable for F2 + M3 Wooden case 335-090-200 is a purpose-built, unpadded storage and transport solution for bespoke calibration weight sets used in laboratories, calibration labs and workshop environments Designed for F2 and M3 calibration weights Accommodates individual sets up to 10 kg Solid wood construction, unpadded interior Special-order item, no returns Secure storage that supports accurate workflows A stable storage solution reduces handling risk and streamlines daily routines; the wood construction provides durable protection while keeping the profile lightweight for transport. Designed for calibration classes F2 and M3, the case accepts nominal values from 1 mg to 10 kg, making it compatible with a wide range of reference masses. The solid build helps keep sets organised, which supports repeatable procedures and reduces time spent searching for individual weights. Flexible layout for bespoke weight configurations This unpadded case is intended for individually configured weight sets and can be furnished with custom inserts at order stage. The layout supports button/compact weight formats commonly used in precision metrology, enabling technicians to specify exact slot sizes for each nominal mass. As a special-order product from KERN, the case is tailored to the required set and therefore supplied as a bespoke item; this ensures a precise fit but also means returns are excluded. Practical benefits for calibration and workshop use The case balances practical transportability with workshop resilience: total mass and dimensions are suited to regular handling without excess bulk. Clear labelling possibilities (SKU and GTIN) support inventory control and traceability in accredited environments. By choosing a purpose-made wooden case for storage of certified masses, facilities reduce accidental damage and maintain measurement integrity — a direct contribution to reliable calibration results and efficient quality assurance. Contact Metav Werkzeuge in Emmerich to specify your customised wooden case (KERN 335-090-200) or to discuss required slot dimensions and delivery options via info@metav-werkzeuge.com or +49 2822 7131930 Technical data Article number: 335-090-200 Manufacturer: KERN Material: Wood GTIN: 4045761006164 Country of origin: DE Facts Total mass: 9.5 kg Suitable for nominal values: 1 mg – 10 kg Calibration classes: F2, M3 Customs code: 84239090 Special features Unpadded interior For individual weight sets / bespoke configuration Suitable for button/compact weight formats Special-order item — non-returnable FAQ What calibration classes is this case designed for? The wooden case 335-090-200 from KERN is designed for calibration classes F2 and M3, covering common laboratory and workshop reference weights. Can the case accommodate a full set up to 10 kg? Yes. The case accepts individual sets with nominal values up to 10 kg and can be specified to hold the largest single weight indicated at order stage. Is padding included with the case? No. The interior is unpadded by design; the case is intended for bespoke insert layouts that can be arranged when ordering the custom set. Are these cases returnable if not needed? These wooden cases are manufactured as special orders and are therefore supplied non-returnable; this is stated at the time of order. Which formats of weights are supported by the internal layout? The case supports button/compact weight formats and can be configured to the exact slot dimensions required for each nominal mass. Manufacturer: KERN, Germany
10 kg Wooden Case Three-Point Padded For F1 Calibration Weights - KERN
Robust wooden storage with a padded interior and secure retention for a single 10 kg control weight, designed for calibration classes F1–M1; lightweight handling at 3.1 kg ensures uncomplicated routine use. Combine reliable protection, durable wooden construction and straightforward organisation for an efficient calibration workflow. Order the KERN case directly via Metav Werkzeuge or ask our consultants if needed. KERN Wooden Case 337-141-100 — Padded storage for control weights The KERN 337-141-100 wooden case is a compact protective case intended for safe storage and transport of individual calibration control weights used in laboratory and workshop metrology. Padded interior for secure weight protection Designed for single 10 kg control weights Suitable for calibration classes F1–M1 Solid wooden construction for long service life Compact and lightweight at 3.1 kg Protecting valuable calibration weights for accurate results The padded interior and tailored compartments minimise movement and surface contact, preserving the metrological condition of a control weight during transport and storage. By reducing mechanical shocks and abrasion, the case helps maintain calibration accuracy and measurement traceability over time. For users operating in calibration laboratories or internal quality control, preserving the reference mass means fewer calibration errors and more consistent measurement outcomes. The durable wooden shell adds mechanical protection while remaining gentle on fine surfaces. Faster workflows through clear organisation and easy handling With a design optimised for a single standard weight, the case shortens handling times during routine checks and calibrations. The compact format and the low net weight of 3.1 kg allow straightforward placement on a workbench or in instrument cabinets, improving daily efficiency and reducing search time for reference standards. Clear visual orientation inside the case supports rapid identification and return of the weight to its designated storage, contributing to good laboratory practice and simplified inventory control. Meets calibration needs for F1–M1 classes and workshop use The case is specified for calibration classes F1–M1, meaning it is suitable for weights that demand strict tolerance and surface condition. While the enclosure itself does not change the weight’s calibration, protecting the artefact from contamination and mechanical impact supports the long-term stability required by metrology standards. For workshops and service providers that handle reference masses, this case provides a practical solution to help ensure that weights remain within their certified condition between calibrations. A dependable addition to a precision toolkit The wooden construction, combined with internal padding, offers a balance between protection, longevity and a professional appearance suited to calibration environments. Procuring the case through a specialised supplier ensures access to a quality-filtered product range and dependable supply. Metav Werkzeuge’s emphasis on precision democratisation and a broad product offering supports customers who prioritise consistent performance and logistical reliability from a single source. For secure, standards-compliant storage of F1 control weights, choose the KERN 337-141-100 via Metav Werkzeuge — based in Emmerich — or contact Metav’s consultants at info@metav-werkzeuge.com / +49 2822 7131930 for further details Technical Data Article number: 337-141-100 Manufacturer: KERN GTIN: 4045761237261 Origin country: DE Tariff number: 84239090 eClass: 21100103 Core technical data Case weight: 3.1 kg Suitable for nominal weights up to 10 kg Calibration classes: F1–M1 Special features Material: wood Interior: padded Designed for single control weight (10 kg) Product category: cases & etuis Product group: wooden etuis FAQ What weight sizes fit this case? The KERN 337-141-100 is designed specifically to accommodate a single control weight with a nominal value of 10 kg. Is the case suitable for calibration class F1 weights? Yes, the case is specified for calibration classes F1–M1 and provides protection that helps preserve the condition required for F1 weights. What material is the case made from? The enclosure is manufactured from wood and features a padded interior to protect surfaces and reduce movement of the weight. How heavy is the empty case and is it easy to handle? The empty case weighs 3.1 kg, offering a compact and lightweight solution for routine handling and storage. Can this case be used for transport between sites? Yes, the padded interior and solid wooden construction are intended to protect a single control weight during short-distance transport and internal transfers. Manufacturer: KERN, Germany; Contact via distributor Metav Werkzeuge — info@metav-werkzeuge.com, +49 2822 7131930
10 kg Wooden Weight Case Unpadded, For Class F2/M1 Calibration Weights - KERN
Combine robust, compact design with quick availability and precise fit for a 10 kg control weight; the wooden construction ensures secure handling and easy storage. Order the case directly via Metav Werkzeuge or consult our specialists for application advice. Holz-Etui KERN 337-141-200 — Wooden case for 10 kg control weight, unpadded the Holz-Etui KERN 337-141-200 is a wooden storage case designed to accommodate a single 10 kg control weight, offering compact protection for calibration and testing tasks Wooden case for 10 kg control weight Unpadded interior for custom protection Suitable for F2 and M1 control weights Secure storage and clear protection for calibration weights The wooden case is tailored to the safe storage of a 10 kg calibration or control weight, reducing the risk of surface damage during handling and transport. The unpadded interior offers a straightforward solution for workshops that prefer to apply bespoke padding or use the raw cavity for a snug fit. Built from solid wood, the case provides a stable shell that resists dents and deformation, while the compact form keeps the mass centrally supported, which helps to maintain the integrity of the control weight between uses and calibrations. Practical benefits for workshop workflows and logistics Designed for single-weight storage, the case supports fast, repeatable handling routines in metrology and maintenance environments. At a case weight of 3.1 kg, the container remains easy to move and stack, simplifying inventory management and transport within the workshop. The straightforward construction reduces maintenance needs and allows immediate use on site or in transit. Where traceable measurement work is required, this storage solution integrates neatly into calibration procedures and workshop workflows, supporting efficient turnaround and minimal handling complexity. Durable materials and responsible sourcing for everyday use Constructed from quality wood, the case combines durability with a tactile, repairable surface that is straightforward to maintain. The plain interior and robust exterior make the product suitable for repeated use in industrial settings where tools and standards are stored close to hand. The case is produced under the KERN brand, known for precision equipment, and is supplied via a distribution network that emphasises reliable fulfilment. This combination of durability and availability supports long-term operational reliability without adding unnecessary complexity to storage routines. For tailored advice on the KERN wooden case and to secure reliable supply from Metav Werkzeuge in Emmerich, contact our consultants for an assessment of suitability and delivery options Technical data Article number: 337 SKU: 337-141-200 GTIN: 4045761150676 Manufacturer: KERN Country of origin: DE Facts Case weight: 3.1 kg Intended for nominal value: 10 kg Tariff number: 84239090 ECLASS: 21100103 Special features Material: Wood Interior: Unpadded Design: For single control/test weights Product group: Wooden case for test weights FAQ Is this case suitable for a 10 kg calibration weight? The case is intended for a 10 kg nominal control weight and provides rigid protection for calibration and storage tasks. Does the case come padded? The interior is unpadded; the design allows bespoke padding to be added if a softer internal lining is required. Which accuracy classes is the case intended for? The wooden case is supplied for use with control weights in classes F2 and M1, matching common workshop calibration needs. What is the weight of the empty case? The empty case weighs approximately 3.1 kg, which supports easy handling and stacking in workshop environments. KERN — Germany
10 mg Precision Caliper Test Weight Plate Stainless Steel Polished OIML F2, 0.08 mg Tolerance - KERN
Take advantage of precise OIML F2 accuracy, polished stainless steel durability and compact disc design for dependable microbalance calibration; order directly via Metav Werkzeuge or consult our specialists for tailored advice. KERN 338-04 Milligram weight — 10 mg, OIML F2, polished stainless steel disc The KERN 338-04 is a precision milligram weight designed for calibration and verification of microbalances and laboratory scales, offering high stability in a compact disc form. OIML class F2 certified tolerance 0.08 mg Nominal value 10 mg in disc format Polished stainless steel for corrosion resistance Suitable for microbalance calibration and testing Precise calibration for microbalances and laboratory use The milligram weight delivers traceable accuracy in environments where every microgram counts. Certified to OIML F2, the unit’s stated tolerance of 0.08 mg supports reliable adjustments of analytical and microbalances, reducing uncertainty in repeated measurements. For laboratories and quality departments this means fewer recalibrations, consistent measurement results and smoother compliance with internal quality control procedures. Robust material and handling for long-term stability Manufactured from polished stainless steel, the disc design resists surface corrosion and simplifies cleaning after use, which preserves mass stability over time. The compact form factor minimises air drag during handling and is suited to routine use in controlled environments. Due to the small nominal mass, storage in a protective case is recommended to avoid contamination; an appropriate etui is advised to maintain calibration integrity and to protect the surface from fingerprints and particulate deposits. Traceability, calibration options and practical recommendations With the cessation of EC initial verification for weights after 30 November 2025, a DAkkS calibration is recommended for most applications as an equivalent route to documented traceability. A documented calibration provides a clear measurement chain and supports audit requirements in accredited labs. For use on sensitive balances, allow the weight to thermally equilibrate in the balance room and employ appropriate handling tools to avoid oils or residues that could affect the mass. For laboratory-grade microbalance calibration choose the KERN 338-04 and contact Metav Werkzeuge in Emmerich for product supply, calibration options and delivery advice — eMail: info@metav-werkzeuge.com / Tel: +49 2822 7131930 Technical data Article number: T338-A SKU: 338-04 Manufacturer: KERN Material: Stainless steel Form: Disc (plättchen) GTIN: 4045761240254 Numbers / Core technical data Nominal value: 10 mg Tolerance (OIML F2): 0.08 mg Tariff number: 84239090 ECLASS: 32120103 Special features / Versions OIML class: F2 Surface: Polished Recommended accessory: Protective etui for precise weight class Origin: CN FAQ What tolerance can be expected from this milligram weight? The KERN 338-04 milligram weight is specified to OIML F2 with a tolerance of 0.08 mg, providing the small uncertainty required for microbalance adjustments and fine measurement tasks. Is a calibration certificate available and what is recommended? A DAkkS calibration is recommended for most uses as an equivalent to former EC initial verification; the KERN 338-04 can be supplied with traceable calibration to support quality systems and audits. Can this weight be used on analytical balances and microbalances? Yes, the 10 mg nominal mass in disc form is suitable for microbalance and analytical balance calibration, provided correct handling and equilibration procedures are followed. How should the weight be handled and stored to maintain accuracy? Use tweezers or gloves, avoid touching the surface, store the disc in a protective etui and keep it in a dust-free, temperature-stable environment to preserve mass stability. Does the material affect long-term performance? The polished stainless steel surface minimises corrosion and contamination, supporting long-term dimensional and mass stability when cleaned and stored correctly. KERN; Origin: China; Contact: not specified in data
10 mg Precision Caliper Weight Plate, OIML M1, Polished Stainless Steel, 0.25 mg Tolerance - KERN
Take advantage of the combination of OIML M1 accuracy, 10 mg nominal value and polished stainless-steel construction for dependable microbalance calibration; order the calibration mass directly via Metav Werkzeuge or ask our consultants for DAkkS calibration options. Milligram weight 348-04 (OIML M1, 10 mg) — KERN The Milligram weight 348-04 is a polished stainless-steel calibration mass in disc form designed as a reference standard for precision microbalances and laboratory metrology. OIML class M1 accuracy Nominal value 10 mg for milligram calibration Polished stainless-steel construction Disc form for reliable weighing placement Consistent, traceable results for microbalances The OIML M1 classification and a nominal value of 10 mg provide a stable reference for routine checks and instrument verification. With an OIML tolerance of 0.25 mg, this calibration mass reduces measurement uncertainty and helps to detect drift on high-resolution balances. The precision of this mass supports reproducible processes in testing, quality control and laboratory workflows, lowering the risk of rework and improving batch-to-batch consistency. Durable design that simplifies handling and storage Manufactured from stainless steel with a polished finish, the mass resists corrosion while presenting a surface that is easy to clean. The disc form ensures stable placement on weighing pans and minimises tilt-related errors. For handling and long-term integrity, use tweezers or gloves and store the mass in a protective case to prevent contamination or surface damage. These features combine to deliver both reliability and low maintenance for everyday calibration tasks. Prepared for accredited calibration and regulatory change As the EG initial verification will no longer be possible after 30 November 2025, a DAkkS calibration is recommended for traceability and documentation suitable for most applications. DAkkS accreditation provides an auditable calibration route that documents the measurement chain back to national standards. This calibration mass is therefore a practical choice for labs and workshops seeking documented conformity and robust quality assurance procedures. For KERN-level precision and traceable milligram calibration, contact Metav Werkzeuge in Emmerich to discuss supply and DAkkS calibration options via email info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical data Article number: 348-04 (SKU) Manufacturer: KERN GTIN: 4045761240162 Core figures Nominal value: 10 mg OIML class: M1 Tolerance (OIML): 0,25 mg Tariff number: 84239090 eClass: 32120103 Country of origin: CN Materials & features Material: stainless steel Form: disc Surface finish: polished Recommended calibration: DAkkS calibration (EG initial verification not possible after 30.11.2025) FAQ What accuracy class does this calibration mass have? The calibration mass is certified as OIML M1, providing high accuracy suitable for routine checks of microbalances and laboratory scales. Is a DAkkS calibration necessary for traceability? A DAkkS calibration is recommended for traceability and documented conformity; this is advised since EG initial verification will not be available after 30 November 2025. Can this mass be used on all microbalances? The 10 mg nominal value is intended for high-resolution balances; compatibility depends on the balance resolution and manufacturer guidance—use the mass as a calibration reference within the instrument’s specified calibration range. How should the mass be handled to maintain its accuracy? Handle the mass with tweezers or gloves and keep it in a protective case to avoid contamination or surface marks that could affect the mass value. Is the stainless-steel finish corrosion resistant? The polished stainless-steel surface offers good resistance to corrosion, but sensible storage and handling practices are still important to preserve long-term integrity. Manufacturer: KERN — Address: not specified — Contact: not specified
10 mg Precision Caliper Weight Three-Point Plated Stainless Steel E2 Tolerance 0.008 mg - KERN
Precise milligram calibration with OIML Class E2 accuracy and a nominal value of 10 mg, combined with a polished stainless steel plate that minimises contamination and drift. Ideal for traceable laboratory checks and routine industrial verifications; order the milligram weight directly via Metav Werkzeuge or ask our consultants if needed. Milligram weight 318-04 — KERN calibration plate, OIML Class E2, 10 mg, polished stainless steel The Milligram weight 318-04 is a precision plate weight intended for calibrating laboratory and industrial balances where microgram-level accuracy and traceability are required OIML Class E2 accuracy Nominal value 10 mg Tolerance ±0.008 mg Polished stainless steel plate Ensure micro-scale results with OIML-class precision For applications that demand repeatable tiny-mass measurements, the combination of OIML Class E2 and a nominal 10 mg value provides a reproducible reference point. The specified 0.008 mg tolerance quantifies maximum permissible error and allows technicians to evaluate balance performance against an international standard. Using a defined reference weight reduces the need for time-consuming rework, supports quality documentation and helps maintain production throughput by ensuring instruments remain within specification. Reduced contamination and stable readings through design and material The polished stainless steel surface lowers particle adhesion and simplifies cleaning, which in turn reduces drift between calibrations. The plate form offers a compact footprint for microbalances while minimising airflow effects during handling. As a result, calibration routines are faster and less error-prone, helping to cut downtime. For environments where ambient contamination or frequent handling is likely, the material choice supports longer intervals between service cycles and contributes to consistent measurement quality. Traceability, calibration options and practical handling advice Traceability is essential for auditability and process control; therefore a DAkkS calibration is recommended, especially because statutory EG initial verification will not be possible after 30 November 2025. A DAkkS certificate provides documented equivalence for most industrial and laboratory applications and supports compliance with internal quality systems. Due to the sensitivity of milligram weights, storage in a suitable case is advised to protect the reference mass from contamination and mechanical damage. Regular visual inspection and controlled handling minimise uncertainty and prolong reliable service life. For traceable micro-scale calibration and DAkkS calibration options, contact Metav Werkzeuge to arrange supply of the KERN 318-04 or to discuss the right calibration route for the application. Technical Data Article number: T318-A / SKU 318-04 GTIN: 4045761240438 Manufacturer: KERN Origin: CN Core specifications Nominal value: 10 mg OIML class: E2 Tolerance: 0.008 mg Form: Plate Materials & special features Material: Polished stainless steel Recommended: Use protective case due to high accuracy Calibration recommendation: DAkkS calibration advised Regulatory note: EG first verification not possible after 30.11.2025 Commodity code: 84239090 FAQ What level of accuracy does this weight provide? The KERN milligram weight 318-04 is OIML Class E2 with a tolerance of 0.008 mg, providing the micro-level accuracy required for sensitive balance checks. Is a calibration certificate available for this weight? Yes; a DAkkS calibration is recommended for the 318-04 to ensure traceability and documented equivalence for most laboratory and industrial purposes. How should the weight be stored to maintain accuracy? Store the 10 mg plate in a protective case and handle with clean gloves or forceps to avoid contamination; polished stainless steel benefits from gentle cleaning and minimal handling. Can this weight be used for routine balance verification? The 318-04 is suitable for routine verification of high-precision balances where a 10 mg reference is appropriate, supporting process control and instrument performance checks. Why choose a polished stainless-steel plate over other forms? Polished stainless steel reduces particle adhesion and is easier to clean, which helps maintain stable readings and extends intervals between recalibrations. Metav Werkzeuge, Emmerich am Rhein — eMail: info@metav-werkzeuge.com — Telefon: +49 2822 7131930 — WhatsApp: +49 170 2837271
10 mg Precision Mass, Three-Point Wire Shape, Stainless Steel Polished, OIML E1 Tolerance 0.003 mg - KERN
Take advantage of the combination of OIML class E1 accuracy, a polished stainless steel wire form and a very low tolerance to maintain traceable calibrations and repeatable measurement results; order the weight directly via Metav Werkzeuge or consult our specialists for technical advice. Milligram weight 308-34 — KERN, OIML class E1, 10 mg, polished stainless steel The Milligram weight 308-34 is a precision calibration weight in wire form, intended for use with high-precision laboratory balances and calibration services OIML class E1 accuracy Nominal value 10 mg Polished stainless steel material Wire form for fine-balance calibration Reliability for certified calibrations The OIML class E1 designation guarantees a level of accuracy required for primary calibrations and inter-laboratory comparisons; with a nominal value of 10 mg and an OIML tolerance of 0.003 mg, this weight supports measurement processes that demand minimal uncertainty. For technicians and quality managers, the benefit is clear: fewer measurement corrections and better conformity with traceability chains. The class specification defines permissible error limits and handling protocols; understanding these ensures that calibration procedures remain compliant with international standards. Practical design for routine laboratory use The wire form and polished stainless steel finish reduce contact surface and facilitate delicate handling when working with microbalances. The design minimises contamination and adsorption effects, which otherwise introduce bias at milligram scales. For laboratories, this means reduced drift between calibrations and a lower risk of particulate transfer. The polished finish also simplifies cleaning and inspection, extending the usable life of the standard while maintaining consistent mass values under standard laboratory conditions. Integrating the standard into measurement workflows As a compact, high-precision mass artefact, this weight fits easily into established calibration routines and storage systems; the producer recommends the use of a protective case to preserve accuracy during transport and storage. Incorporating such a standard into routine checks improves repeatability of results and supports quality documentation. For procurement and test houses, the combination of traceability, durable material and adherence to stringent OIML criteria streamlines accreditation processes and reduces administrative effort related to uncertainty budgets. For traceable calibrations and expert guidance on selection, choose the KERN 308-34 via Metav Werkzeuge — contact our Emmerich team at info@metav-werkzeuge.com or call +49 2822 7131930 for detailed technical support and delivery options Technical data Article number: 308-34 Manufacturer: KERN GTIN: 4045761002968 SKU: 308-34 Country of origin: DE Tariff code: 84239090 Facts Nominal value: 10 mg OIML tolerance: 0.003 mg OIML class: E1 Special features Material: stainless steel Form: wire form Finish: polished stainless steel Recommended storage: use a protective case Intended use: calibration of high-precision balances FAQ What level of accuracy does this weight provide? The KERN 308-34 milligram weight meets OIML class E1 with a tolerance of 0.003 mg, suitable for primary calibration tasks and high-precision laboratory work. Is the material suitable for repeated use and cleaning? Yes, the polished stainless steel construction of the 308-34 resists corrosion and simplifies cleaning, helping to maintain stable mass values over repeated use. Why is the wire form beneficial for microbalances? The wire form reduces contact area and surface contamination, lowering adsorption effects that can bias readings on microbalances and improving repeatability in fine-scale measurements. Should this weight be transported with any special precautions? A protective case is recommended for the 308-34 to prevent mechanical damage and contamination; careful storage preserves the calibration state and minimises the need for frequent recalibration. KERN — Germany. For enquiries and sales: Metav Werkzeuge, Emmerich. Email: info@metav-werkzeuge.com | Tel: +49 2822 7131930
10 mg Precision Milligram Weight Disc Stainless Steel Polished, OIML F1 0.025 mg Tolerance - KERN
Take advantage of precise OIML F1 accuracy, a polished stainless steel disc shape and a nominal value of 10 mg to maintain reproducible calibration routines; order the mass directly via Metav Werkzeuge or consult our specialists for calibration options. Milligram weight KERN 328-04 — OIML F1, 10 mg polished stainless steel disc The Milligram weight KERN 328-04 is a polished stainless steel disc intended for high-precision calibration of microbalances and laboratory scales. OIML Class F1 accuracy Nominal value 10 mg Polished stainless steel disc Tolerance ±0.025 mg Precision for the smallest measurement ranges The OIML F1 classification and a nominal value of 10 mg make this calibration mass suitable for use with microbalances and high-resolution laboratory scales. The stated tolerance of ±0.025 mg defines the permissible deviation and thereby reduces measurement uncertainty in routine checks and instrument verification. As a calibration mass, it enables traceable adjustment points for balance linearity and repeatability checks, supporting documented quality procedures in testing laboratories and production metrology environments. Material choice and handling that protect results Manufactured as a polished stainless steel disc, the mass resists corrosion and surface contamination that could otherwise alter readings at the milligram level. The disc form minimises sharp edges and supports stable resting on a balance pan; careful handling with tweezers or gloves and storage in a protective case are recommended to preserve the calibrated value. Due to the sensitivity of the class, a protective case is advised for transport and storage to avoid abrasion or particulate adhesion that would affect accuracy. Calibration, conformity and practical implications The initial type approval under EC rules will no longer be available after 30.11.2025; for most laboratory and industrial needs a DAkkS calibration is recommended to ensure traceability and acceptance in accredited workflows. The mass integrates into documented calibration chains and helps maintain conformity with internal quality controls and ISO requirements. Supplied by the established brand KERN, this item supports consistent measurement practices and can be used as a reliable reference mass in both routine checks and formal recalibration cycles. Contact Metav Werkzeuge to arrange delivery from our Emmerich warehouse, to discuss DAkkS calibration options or to request further technical specifications for the KERN 328-04 calibration mass. Technical Data Article number: T328-A SKU: 328-04 GTIN: 4045761240346 Manufacturer: KERN Origin: CN Core data Nominal value: 10 mg OIML class: F1 Tolerance: 0.025 mg Tariff number: 84239090 Special features Material: Stainless steel Form: Disc shape Surface finish: Polished Protective case recommended Calibration recommendation: DAkkS calibration Note: EC type approval not available after 30.11.2025 FAQ What accuracy class does this calibration mass belong to? The KERN 328-04 is manufactured to OIML F1 accuracy, suitable for high-precision balance verification. What is the nominal value and tolerance of the mass? The mass has a nominal value of 10 mg with a tolerance of ±0.025 mg, providing reliable reference points for microbalance checks. Is a protective case required for this mass? Due to the very fine tolerance, a protective case is recommended for the 10 mg mass to avoid contamination or surface damage during storage and transport. Which calibration is recommended for traceability? A DAkkS calibration is recommended for the KERN 328-04 to ensure full traceability and documented conformity for laboratory and industrial use. Can this mass be used on production floor balances? The disc is primarily intended for microbalances and high-resolution laboratory scales; assess compatibility with production balances according to their readability and calibration procedures. Manufacturer: KERN — Origin: CN, GTIN: 4045761240346
100 g Calibration Weight Button Shape Polished Stainless Steel OIML E1, 0.05 mg Tolerance - KERN
KERN 307-07 combines legal-grade accuracy and robust stainless-steel design for dependable calibration results; its OIML Class E1 tolerance and compact button form offer repeatable measurements and easy handling in laboratory and production environments. Order through Metav Werkzeuge or consult our specialists for accessory recommendations. KERN 307-07 calibration weight — OIML Class E1, 100 g, polished stainless steel KERN 307-07 is a precision test weight for laboratory and industrial calibration tasks, designed as a polished stainless-steel button for reliable use on analytical and precision balances. OIML Class E1 for highest accuracy Nominal value 100 g for calibration Polished stainless steel, button shape Tight tolerance 0.05 mg for traceable results Accuracy that supports certified calibration workflows High-precision metrology depends on reproducible reference masses. The KERN 307-07 meets OIML Class E1 requirements and offers a tolerance of 0.05 mg, making it suitable for calibration of analytical and high-precision laboratory balances. This level of specification reduces measurement uncertainty in calibration routines and supports quality assurance processes where minimal deviation is critical. The compact 22×38 mm cylindrical profile ensures secure placement on pans while maintaining a small footprint on the balance. Durable finish and handling benefits for everyday laboratory use A polished stainless-steel construction provides corrosion resistance and a smooth surface that eases cleaning after use. The button form factor improves handling on tiny balance pans and minimises tipping or contact errors during transfers. Thanks to the robust finish, the reference mass sustains repeated handling without rapid surface degradation, which contributes to long-term stability and lowers the frequency of recalibration required in routine workflows. A compact mass of 100 g and a practical shape support efficient operation in busy calibration environments. Designed to integrate into traceable quality systems The product’s adherence to OIML Class E1 supports traceability demands for accredited laboratories and internal quality systems. The precise specification—combined with manufacturer identification and SKU for inventory—simplifies record keeping and procurement within a calibrated equipment register. For preservation of the weight’s accuracy, storage in a protective case is recommended; this reduces contamination and mechanical wear that would otherwise affect measurement fidelity. The clear technical specifications allow straightforward comparison with regulatory requirements and laboratory procedures. Practical applications and recommended care Intended primarily for metrology labs, calibration service providers and precision workshops, this reference mass is ideal where exact mass values are necessary for verification and adjustment of analytical balances. Handling advice: minimise fingerprints and grit contact, store the mass in a protective case when not in use, and follow the laboratory’s cleaning and recalibration schedule to preserve conformity with the stated 0.05 mg tolerance. The compact stainless-steel construction enables use across a variety of controlled environments without introducing material compatibility concerns. For procurement and accessory guidance—such as selection of a suitable protective case—contact Metav Werkzeuge in Emmerich for tailored advice and ordering support via info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 307 SKU: 307-07 GTIN: 4045761002722 Manufacturer: KERN Country of origin: DE Core specifications Nominal weight: 100 g OIML class: E1 Tolerance: 0.05 mg Dimensions (cylinder): 22×38 mm Mass (kg): 0.1 Materials and special features Material: polished stainless steel Form: button shape Tariff number: 84239090 Protective case recommended for high-precision class FAQ What accuracy and tolerance does this reference mass provide? The KERN 307-07 calibration weight is specified as OIML Class E1 with a tolerance of 0.05 mg, suitable for calibration of analytical and high-precision balances. Is this weight intended for laboratory calibration or field use? This 100 g reference mass is intended primarily for laboratory and calibration service use; the Class E1 specification supports controlled calibration procedures rather than rough field checks. How should the mass be stored to maintain accuracy? Store the KERN 307-07 in a protective case when not in use, avoid direct handling with bare hands where possible, and keep it in a stable, clean environment to preserve the stated tolerance. Which balances can be adjusted with this weight? The weight is suitable for analytical and precision balances that require a 100 g reference mass for verification or adjustment within a laboratory calibration workflow. Does the product require special handling during measurement? Handle the KERN 307-07 with clean gloves or tweezers and place it gently on the balance pan; a protective case is recommended to prevent contamination and preserve long-term stability. Metav Werkzeuge, Emmerich am Rhein — Email: info@metav-werkzeuge.com — Tel: +49 2822 7131930 — WhatsApp: +49 170 2837271
100 g Calibration Weight Button Shape Polished Stainless Steel OIML E2, 0.16 mg Tolerance - KERN
High-precision OIML Class E2 accuracy combined with a polished stainless steel finish provides a reliable, long-term reference mass for laboratory and industrial balances; the knob form and compact dimensions simplify handling and storage. Order the weight directly via Metav Werkzeuge or consult our specialists for selection and calibration advice. KERN 317-07 — 100 g OIML Class E2 polished stainless steel test weight A KERN 317-07 precision test weight designed as a knob-shaped calibration mass for balances and scales in laboratories, quality departments and production control. OIML Class E2 accuracy for laboratory use Polished stainless steel for corrosion resistance Knob-shaped for secure handling and placement Very low tolerance of 0.16 mg for traceable results Certified accuracy for consistent measurement results The calibration mass delivers OIML Class E2 performance, offering a tolerance of 0.16 mg at a nominal value of 100 g, which supports repeatable verification of high-precision balances. This level of accuracy means fewer adjustments and less downtime during routine checks; the specification is suitable for environments where measurement uncertainty must be tightly controlled. The knob form reduces handling error during placement and removal on weighing pans. Robust design that eases day-to-day use Constructed from polished stainless steel, the mass resists surface corrosion and is simple to clean, preserving its metrological characteristics over time. The compact dimensions (22 × 38 mm) and a mass of 0.1 kg provide a stable centre of gravity on most laboratory scales, reducing the risk of tipping or imbalance. The finish also minimises particulate adherence, which lowers maintenance effort and helps maintain calibration integrity between checks. Traceability and calibration recommendations For legally relevant or accreditation-driven applications, the EU first verification (EG-Erstbewertung) for test weights is no longer possible from 30.11.2025; therefore, a DAkkS calibration is recommended, as it provides traceability and recognised measurement certificates for most professional purposes. Choosing a calibrated reference mass ensures documented measurement chains and supports quality management systems in industry and research. Practical benefits for procurement and quality workflows The compact design and standardised accuracy class make this calibration mass a convenient choice for centralised tool rooms, calibration labs and mobile verification kits. As a single, certified mass it reduces the number of reference items required for routine checks, streamlines inventory and aids compliance with internal and external audit requirements. Choose KERN quality: contact Metav Werkzeuge in Emmerich for tailored advice and DAkkS calibration arrangements at info@metav-werkzeuge.com or +49 2822 7131930 Technical data Article number: 317 SKU: 317-07 GTIN: 4045761003644 Manufacturer: KERN Origin country: DE Data Nominal value: 100 g Mass (kg): 0.1 Dimensions (Ø × H): 22 × 38 mm Tolerance (OIML E2): 0.16 mg Tariff number: 84239090 Special features Form: knob shape Material: polished stainless steel OIML class: E2 Recommendation: DAkkS calibration advised Note: EG first verification not possible from 30.11.2025 FAQ What level of accuracy does this calibration mass provide? The KERN 317-07 offers OIML Class E2 accuracy with a tolerance of 0.16 mg at a nominal value of 100 g, making it suitable for high-precision balance verification. Is this weight suitable for routine laboratory verification? Yes, the polished stainless steel construction and Class E2 specification make this calibration mass appropriate for routine checks in laboratory and production environments. How should the mass be maintained to preserve accuracy? Handle the knob carefully, keep the surface clean and free of contaminants, and store the mass in a protective case when not in use to maintain the polished finish and measurement integrity. Is calibration traceability provided or required? For accredited or legally relevant measurements, a DAkkS calibration is recommended; the product page advises DAkkS certification as the preferred traceability route. Why is the knob shape advantageous? The knob form simplifies placement and removal on weighing pans, reducing handling-related uncertainties and improving repeatability during verification. Metav Werkzeuge, Emmerich am Rhein, Germany — info@metav-werkzeuge.com — +49 2822 7131930
100 g Calibration Weight Button Shape Stainless Steel Fine-Turned OIML M2 - KERN
High-accuracy OIML Class M2 100 g knob calibration weight with finely turned stainless-steel finish for dependable routine checks; compact knob form enables safe handling and quick placement on scales. Order the KERN 357-07 directly via Metav Werkzeuge or consult our specialists for tailored metrology advice. KERN 357-07 – 100 g OIML M2 calibration weight, knob form, stainless steel A KERN 357-07 calibration weight designed for routine scale verification and workshop or laboratory checks where a compact, robust reference mass is required. OIML class M2 certified Nominal mass 100 g Finely turned stainless steel finish Knob form for secure handling Certified accuracy for routine verification The weight is specified as OIML Class M2, a recognised standard for calibration masses used in routine verification and non-precision laboratory checks. The 100 g nominal mass provides a stable reference for balances and scales where Class M2 tolerances are applicable. Using a certified reference reduces uncertainty in routine checks and supports traceable results, helping maintain measurement consistency across production and inspection points. Robust stainless-steel construction for daily use Manufactured from finely turned stainless steel, the reference mass resists corrosion and surface wear in workshop environments, extending service life and preserving measurement stability. The knob form simplifies handling and placement, reducing the risk of finger oil or contamination affecting the mass. Durable construction also minimises the need for frequent replacement, supporting efficient maintenance cycles and reliable daily verification routines. Practical fit into calibration workflows Compact design and clear specification make this calibration mass straightforward to integrate into existing calibration procedures. The compact knob facilitates quick, repeatable placement on balances, speeding up routine checks and reducing downtime. Clear labelling and certification support documentation requirements for internal quality control and audit trails, making the component a practical tool for production, workshop and inspection areas. For certified calibration supplies and advice on integrating the KERN 357-07 into existing workflows, contact Metav Werkzeuge in Emmerich—our consultants will assist with technical questions and supply options. Technical data Article number: 357-07 Manufacturer: KERN Product type: Calibration weight (knob form) Data Nominal mass: 100 g Mass (kg): 0.1 OIML class: M2 Special features Material: finely turned stainless steel Form: knob form Category: Calibration weights (single weight) FAQ What does OIML Class M2 mean for routine checks? OIML Class M2 specifies metrological requirements for non-precision calibration masses; the KERN 357-07 meets these requirements for its nominal value and is suitable for routine verification of balances within the corresponding tolerance band. Is this weight suitable for workshop and laboratory use? Yes. The finely turned stainless-steel construction and knob form of the KERN 357-07 make it suitable for workshop and laboratory environments where robust handling and repeatable placement are required. How should the calibration weight be handled to preserve accuracy? Handle the calibration weight with clean gloves or tweezers, avoid touching measurement surfaces directly, and store it in a protective case or dry location to prevent contamination and corrosion. Can the weight be used for documentation and audits? Yes. The certified OIML class and clear nominal value enable the KERN 357-07 to be recorded in internal calibration logs and audit trails as part of routine quality assurance procedures. Metav Werkzeuge — Emmerich am Rhein — Email: info@metav-werkzeuge.com — Tel: +49 2822 7131930 — WhatsApp: +49 170 2837271
100 g Calibration Weight Button Stainless Steel Fine-Turned, OIML F2 1.6 mg Tolerance - KERN
Combine industry-grade accuracy with a robust stainless-steel finish and compact button design to ensure reliable calibration results and simple handling. Order directly via Metav Werkzeuge or contact our consultants for accessory recommendations. KERN 337-07 calibration weight – 100 g, OIML F2, stainless steel A KERN 337-07 single calibration weight in button form, designed for verification and routine calibration of precision balances in laboratories and workshops. OIML class F2 precision Nominal value 100 g Fine-turned stainless steel Button form 22×39 mm Precision where measurement counts The OIML F2 classification and a stated tolerance of 1.6 mg make this calibration weight suitable for high-accuracy verification tasks and internal quality control. As a 100 g reference mass, it provides a compact, traceable standard that supports reproducible results on analytical and precision balances. Choosing a weight with defined OIML conformity reduces uncertainty in routine checks and helps meet audit and certification requirements, allowing calibration cycles to be planned with confidence. Durable construction for repeatable results Manufactured from fine-turned stainless steel, the reference mass offers excellent surface integrity and corrosion resistance, which preserves the metrological properties over time. The button form simplifies handling and placement on small balance pans, while the compact 22×39 mm geometry minimises thermal and air-flow influences during weighing. This combination of material and shape reduces wear and maintains mass stability, decreasing the frequency of replacements and interventions. Practical integration into calibration routines Designed as a reference mass for balance verification, this weight supports efficient calibration workflows: small footprint for bench use, clear classification for documentation, and a robust finish for everyday handling. A protective case is recommended given the tight tolerance of the class; Metav offers suitable etuis and accessory options to protect the reference mass during storage and transport. Using a well-documented single weight like this reduces downtime during routine checks and simplifies traceability records. Trusted supply and quality assurance Produced by a recognised metrology manufacturer in Germany and supplied with full identification, the calibration mass is designed for professional environments where repeatability and traceability are essential. Relying on certified reference masses contributes directly to process reliability and customer confidence in measured results. Metav’s procurement and quality-filtering at Emmerich ensures consistent product availability and compliant delivery for industrial and laboratory use. Contact Metav Werkzeuge for tailored advice on the KERN 337-07 calibration weight, accessory recommendations and to request the suitable protective case — email info@metav-werkzeuge.com, call +49 2822 7131930 or WhatsApp +49 170 2837271 Technical data Article number: 337 SKU: 337-07 Manufacturer: KERN GTIN: 4045761006409 Country of origin: DE OIML class: F2 Core specifications Nominal value: 100 g Mass: 0.1 kg Tolerance (OIML F2): 1.6 mg Dimensions (cylinder): 22×39 mm Tariff code: 84239090 Special features Fine-turned stainless steel Button form for safe placement Suitable for laboratory and balance calibration Recommendation: protective case (etui) FAQ What accuracy class does this weight meet? The weight conforms to OIML F2 and is specified with a tolerance of 1.6 mg, making it suitable for precision verification and internal calibration tasks. For which applications is this reference mass intended? This single calibration weight is intended for verification of precision and analytical balances in laboratories, quality control departments and workshop metrology. How should the weight be stored and handled? Handle the mass with clean tweezers or gloves and store it in a protective case to avoid surface contamination; a protective etui is recommended for the KERN 337-07 due to its narrow tolerance. What benefits does the stainless-steel construction provide? Fine-turned stainless steel offers corrosion resistance and dimensional stability, which preserves the mass value and extends service life under normal laboratory conditions. Is a protective case necessary for transport? Given the tight tolerance of the class, a protective case is strongly recommended to prevent damage or contamination during transport and storage. KERN · Country of origin: DE · GTIN: 4045761006409
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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