1 mg–500 mg Precision Weight Set, F1 Class, Polished Stainless Steel Plates, Plastic Case - KERN

Take advantage of a robust, natural-wood storage solution that combines compact protection with clear organisation for small laboratory masses; order the wooden case directly via Metav Werkzeuge or consult our specialists for matching storage options. KERN Wooden Case 338-090-200 — for individual precision weights, unpadded A sturdy KERN wooden case designed to store individual precision weights for calibration, inspection and controlled transport in laboratories and workshops Natural wood construction, durable finish Designed for single weights, button/compact form Fits nominal values from 1 mg to 500 mg Lightweight transport case, compact footprint Secure storage that preserves measurement integrity The wooden case provides a reliable housing for precision weights, keeping each piece separated and accessible. Its unpadded layout reduces the risk of contamination that can occur when fibres from linings migrate onto mass standards; at the same time the snug compartments prevent lateral movement, lowering abrasion and measurement drift during handling. The natural-wood shell offers dimensional stability and a tactile, professional finish that supports repeatable calibration procedures. Practical compatibility for calibration and quality control Designed for single, button-style or compact weights, the case accommodates nominal values between 1 mg and 500 mg, making it suitable for small-mass work in calibration labs and quality assurance. Clear organisation of individual slots accelerates inventory checks and instrument set-up, reducing downtime during verification tasks. The simple internal layout also facilitates routine cleanliness checks and makes it straightforward to pair weights with calibration reports or tare lists. Durable materials and straightforward handling Constructed from responsibly sourced natural wood, the case balances low weight with robust protection for small masses. The unpadded interior is intentionally chosen for applications where lint-free storage is preferred; this supports traceable mass handling and reduces the need for frequent re-cleaning of weights. The compact footprint and light overall weight simplify storage on workshop trolleys or inside cabinet drawers while maintaining immediate access to critical measurement standards. For secure storage and fast supply from Emmerich, contact Metav Werkzeuge to request the KERN wooden case 338-090-200 or ask for advice at info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical data Article number: 338 SKU: 338-090-200 Manufacturer: KERN Material: Wood Unpadded interior Fits nominal values 1 mg – 500 mg (single) GTIN: 4045761007291 Facts Net weight: 0.13 kg Customs tariff (CN): 84239090 eCl@ss: 21100103 Origin: DE Special features For individual weights (button / compact) Product category: Test weights / Cases Category path: Scales › Test weights Unpadded design for lint-free storage Lightweight, compact footprint for easy storage FAQ Is this case suitable for button or compact weights? Yes. The KERN wooden case 338-090-200 is designed specifically for single button/compact weights and organises them for quick access during calibration. Can the case accommodate weights down to 1 mg? The case fits nominal values from 1 mg up to 500 mg, making it suitable for small-mass sets used in fine measurement tasks. Does the interior include cushioning to protect delicate masses? The interior is unpadded by design; this supports lint-free storage and simplifies cleanliness control for precision masses. Who supplies this case and where is it shipped from? Metav Werkzeuge supplies the KERN wooden case 338-090-200 and ships from Emmerich am Rhein with transparent order processing for workshop and industry clients. Metav Werkzeuge, Emmerich am Rhein, Germany — info@metav-werkzeuge.com — +49 2822 7131930

Benefit from robust plastic construction, compatibility with single nominal values 1 mg–500 mg and secure organisation for calibration weights of classes E1–M2, ensuring reliable storage and easy handling. Order the case directly via Metav Werkzeuge or ask our consultants if needed. KERN 347-009-400 Plastic Case for Single Calibration Weights – for 1 mg–500 mg, E1–M2 The KERN 347-009-400 is a compact plastic case designed to protect and organise single calibration weights for laboratories, service engineers and workshop calibration tasks. Compact plastic case for calibration weights Fits single weights from 1 mg to 500 mg Compatible with classes E1 to M2 Lightweight at approx. 0.02 kg Protects precision weights during storage and transport The case provides secure storage for individual calibration weights, reducing the risk of contamination and handling damage that can alter mass values. The internal layout is adapted for button/compact designs commonly used in calibration sets; this keeps each weight separated and stable during transport. By using a dedicated enclosure made from durable plastic, routine handling becomes more predictable and safer for sensitive measurement artefacts. Ensures compatibility with recognised accuracy classes Designed for nominal values from 1 mg–500 mg, the enclosure supports weights used across common accuracy classes E1–M2, which makes it suitable for laboratory checks and field calibration. For readers less familiar with classes: E1 and M2 denote standardised tolerance ranges used in legal and laboratory metrology; storing weights in the correct case helps maintain traceability and reduces the chance of cross-contamination that could compromise conformity checks. Lightweight, compact design for efficient workflow At roughly 0.02 kg, the case contributes negligible additional mass while offering a compact footprint for bench or toolbox storage. The plastic construction balances low weight with sufficient rigidity to protect contents, enabling technicians to carry sets between site visits without bulky packaging. The space-saving profile also assists in organised inventory management, simplifying quick selection and return of individual weights during calibration routines. Practical benefits for workshops and calibration services For calibration laboratories, service teams and quality departments, a purpose-built case streamlines handling and reduces downtime caused by misplaced or contaminated weights. The product supports better operational consistency by keeping single calibration weights in order and immediately accessible, which translates into fewer interruptions during measurement tasks and a smoother calibration workflow. Contact Metav Werkzeuge for delivery from Emmerich, tailored advice or technical clarification via info@metav-werkzeuge.com or call +49 2822 7131930 Technical Data Article number: 347 SKU: 347-009-400 GTIN: 4045761008625 Manufacturer: KERN Facts Weight: 0.02 kg Nominal values: 1 mg–500 mg HS code: 84239090 Special features Material: Plastic For: single calibration weights (button/compact) Class compatibility: E1–M2 Country of origin: DE FAQ Which nominal values fit in this case? The KERN 347-009-400 accommodates single weights with nominal values from 1 mg to 500 mg. Is the case suitable for weights with button or compact form? Yes, the enclosure is intended for button/compact designs and keeps each single weight separated for safe storage. Which accuracy classes are compatible with the case? The case is compatible with weights in accuracy classes E1 to M2 and is suitable for laboratory and workshop use. What material is the case made from and how heavy is it? The case is constructed from plastic and weighs approximately 0.02 kg, offering a lightweight yet protective solution. Manufacturer: KERN, Address: Germany, Contact: not specified

Take advantage of precise storage, robust protection and a padded interior to keep single metrological weights safe and ready for immediate use; order the case directly via Metav Werkzeuge or ask our consultants for additional specifications Aluminium-protected case 317-009-600 — single-weights storage for 1 mg–500 mg, KERN The Aluminium-protected case is a compact, purpose-built storage solution for single metrological weights, designed for safe handling and routine use in calibration labs and workshops Aluminium-protected housing for robust transport Suitable for single weights 1 mg–500 mg Compatible with classes E1–M3 Padded interior for shock protection Built for secure, standards-compliant storage The aluminium shell provides a rigid outer barrier that protects delicate calibration weights from mechanical stress and contamination. By combining a lightweight aluminium construction with an internal padding system, the case offers mechanical protection and dimensional stability without adding unnecessary bulk. This design keeps single weights organised and protected, ensuring quick access during calibration tasks and reducing the risk of damage that can affect measurement accuracy. Ensures traceability and correct handling for metrology workflows Storage that supports metrological routines contributes directly to reliable results. The case is specified for weights in the range 1 mg–500 mg and for classes E1–M3, which makes it suitable for a wide range of laboratory and industrial calibration scenarios. Separate compartments for individual pieces and the padded interior reduce handling errors and minimise cross-contamination, helping maintain the declared tolerance and prolonging the service life of precision weights. Practical benefits that support everyday work in the workshop Lightweight and compact, the case simplifies logistics in environments where secure transport and secure storage are required. The rigid aluminium exterior resists deformation during routine movement, while the internal padding cushions delicate surfaces. This combination reduces downtime caused by damaged weights and supports efficient workflows in quality control and inspection routines, contributing to predictable throughput and fewer interruptions. Contact Metav Werkzeuge today to discuss the KERN aluminium-protected case 317-009-600 and secure a reliable storage solution for precision weights — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 317-009-600 Manufacturer: KERN SKU: 317-009-600 GTIN: 4045761223592 Facts Weight range: 1 mg–500 mg Suitable classes: E1–M3 Net weight: 0.3 kg HS code: 84239090 Origin: CN Special features Material: Aluminium Interior: padded Product group: aluminium-protected cases for single weights Product category: test weights / cases FAQ Is the case suitable for single weights from 1 mg to 500 mg? The aluminium-protected case 317-009-600 is specified for single weights in the range 1 mg–500 mg and supports organised storage for that range. Which weight classes can be stored in this case? This case is compatible with weights of classes E1–M3, making it suitable for a variety of calibration and inspection tasks requiring high accuracy. Does the interior protect against shock and abrasion? The interior of the KERN aluminium-protected case features padding that cushions weights and reduces the risk of mechanical damage and surface abrasion during transport and handling. Can the case be used for routine transport between sites? The rigid aluminium housing and padded interior of the 317-009-600 provide robust protection suitable for routine transport within laboratory and workshop environments. KERN — Origin: China; Contact: Metav Werkzeuge, Emmerich — eMail: info@metav-werkzeuge.com, Phone: +49 2822 7131930

Accurate handling of small calibration masses is achieved through the combination of stainless-steel construction, high-quality plastic tips and a practical 136 mm length; order the KERN 315-247 tweezers directly via Metav Werkzeuge or consult our product specialists for application advice. KERN 315-247 — Calibration tweezers with straight plastic tips A KERN 315-247 tweezers designed for secure, non-marking handling of small calibration weights in metrology and workshop environments. Straight stainless-steel tips for secure grip High-quality plastic tips to protect weights 136 mm length for precise, ergonomic handling Secure handling for exact calibration results For precision tasks, secure handling is essential. The instrument offers a controlled grip on calibration masses up to ≤ 5 g, compatible with classes E1–M3, which helps reduce handling errors and improves repeatability in weighing procedures. Constructed to meet the demands of metrology, the tool supports consistent measurement routines and minimises the risk of surface contact that could alter a weight’s value. By using a purpose-made tweezer rather than fingers, the chance of contamination and thermal transfer is lowered, contributing to more reliable results in daily quality checks. Durable build with gentle contact to sensitive masses A corrosion-resistant body delivers long service life while the high-quality plastic tips preserve delicate surfaces. The combination of stainless steel strength and soft tip protection ensures that fine calibration weights are neither scratched nor displaced during handling. The straight tip geometry provides direct visual control when picking up minute masses, and the construction requires minimal maintenance. This balance of durability and gentle contact supports both routine laboratory work and demanding workshop environments where component care matters. Practical design to streamline laboratory and workshop workflows Measuring 136 mm in length and weighing about 0.02 kg, the tweezers are optimised for comfortable, precise handling throughout repetitive tasks. The tool’s length offers ergonomic reach without compromising manoeuvrability at the balance pan, enabling steady placement and removal of weights during calibration cycles. Designed for integration into existing metrology workflows, the device supports standard operating procedures and helps technicians maintain efficient throughput while preserving measurement integrity. For further clarification on application limits or compatibility with specific test procedures, Metav’s consultants can advise on best practice. For supply and technical guidance on the KERN 315-247 tweezers, contact Metav Werkzeuge in Emmerich — email info@metav-werkzeuge.com or phone +49 2822 7131930 Technical data SKU: 315-247 Manufacturer: KERN GTIN: 4045761222922 Specifications Length: 136 mm Weight: 0.02 kg Suitable for weights: ≤ 5 g (classes E1–M3) Features Material: stainless steel with high-quality plastic tips Tip design: straight tips FAQ Which calibration weight classes can be handled with these tweezers? The tweezers are suitable for calibration masses up to ≤ 5 g and compatible with classes E1–M3, making them appropriate for fine-weight handling in precision weighing tasks. Are the plastic tips safe for delicate weight surfaces? Yes, the high-quality plastic tips are designed to protect sensitive surfaces and reduce the risk of scratching or marking during handling of calibration weights. What are the dimensions and mass of the tweezers? The tweezers measure 136 mm in length and have an approximate mass of 0.02 kg, providing a balance of reach and lightness for repeated use. Is this tool suitable for routine laboratory workflows? The design supports routine metrology and workshop workflows by offering ergonomic handling, controlled grip and surface protection, which together help maintain measurement consistency. Who supplies the product and where can further technical advice be obtained? The product is supplied by KERN (SKU 315-247); for application-specific advice and supply options, Metav Werkzeuge can provide consultancy and ordering information. KERN

Take advantage of secure handling of small calibration weights, robust stainless steel construction and a compact 105 mm length for precise control; order the tweezers directly via Metav Werkzeuge or contact our consultants for application advice. Pinzette 315-243 — Precision tweezers by KERN, stainless steel, 105 mm The Pinzette 315-243 is a precision tweezer designed for the secure handling of small calibration weights in laboratories and workshop environments. Secure grip for micro calibration weights Stainless steel construction Length 105 mm for fine control Suitable for 1 mg – 200 g (E1 – M3) Secure handling for trace and routine calibration tasks The compact design delivers a secure grip for very small test weights, reducing the risk of slippage and accidental contact. Its dimensions, including the 105 mm length, allow for controlled, repeatable handling that supports efficient calibration workflows. This contributes to fewer handling errors and a more consistent weighing routine when working with weights from 1 mg – 200 g. Durable construction that keeps processes dependable Manufactured in stainless steel, the tool combines durability with low maintenance, ensuring longevity in daily metrology use. The robust construction helps maintain geometric stability and handling precision under repeated use, which supports reliable measurement results and reduces downtime for replacements. The design suits both laboratory benches and on-site calibration setups where space and dexterity matter. Practical compatibility and metrology clarity Designed for compatibility with standard calibration classifications, the tweezers are suitable for weights in classes E1 – M3, covering high-accuracy laboratory weights as well as routine workshop standards. For users less familiar with weight classes: these designations indicate recognised accuracy ranges used by calibration professionals and metrology services, ensuring the tool is appropriate for precise, standard-compliant handling. Confidence through expert supply and service Sourcing tools from a trusted partner simplifies procurement and post-sale support. Metav Werkzeuge stands for democratisation of precision, offering an extensive range of metrology supplies from its base in Emmerich. With a broad catalogue and a long-standing customer base, the emphasis is on dependable availability and a clear supply chain that supports uninterrupted calibration operations. Contact Metav Werkzeuge for tailored advice on the KERN 315-243 tweezers and to confirm suitability for specific weight classes — email info@metav-werkzeuge.com or call +49 2822 7131930 for fast guidance from our Emmerich team Technical data Article number: 315 SKU: 315-243 Manufacturer: KERN GTIN: 4045761067615 Length: 105 mm Net weight: 0.02 kg Facts Suitable weight range: 1 mg – 200 g Applicable weight classes: E1 – M3 Material: Stainless steel Special features Secure gripping geometry for small calibration weights Compact format for precise handling and repeatability Designed for laboratory and workshop use Rapid dispatch and broad metrology assortment available from supplier FAQ How small a weight can be handled with these tweezers? The Pinzette 315-243 from KERN is suitable for handling weights from 1 mg up to 200 g, covering the usual micro and small calibration weights used in precise weighing tasks. What material is the tool made from and why does that matter? The tweezers are made from stainless steel, giving corrosion resistance and dimensional stability that support consistent handling and long service life in metrology environments. Are these tweezers suitable for laboratory-grade calibration weights? Yes, the KERN 315-243 is specified for weights in classes E1 – M3, which includes high-accuracy laboratory weights as well as standard workshop classes, making it appropriate for professional calibration work. What are the physical dimensions and weight of the tweezers? The tweezers measure 105 mm in length and have a net weight of 0.02 kg, offering a compact tool that balances control with minimal contact force. Metav Werkzeuge, Emmerich am Rhein, Email: info@metav-werkzeuge.com, Tel: +49 2822 7131930

High-grade OIML F1 accuracy and a 1 mg nominal value combine with a polished stainless-steel disc to deliver traceable results for microbalances; order this calibration weight directly via Metav Werkzeuge or consult our specialists for application and calibration advice. Milligram weight KERN 328-01 — 1 mg, OIML F1, polished stainless steel Milligram weight KERN 328-01 is a polished stainless-steel calibration disc for OIML F1 precision, designed for microbalances and high-accuracy laboratory use. OIML class F1 accuracy Nominal value 1 mg Tolerance 0.02 mg Polished stainless-steel disc Precise metrology: consistent measurement and traceability The OIML F1 classification and 0.02 mg tolerance establish a reliable baseline for laboratory-level calibration. This weight supports traceable calibration procedures on microbalances and precision balances, reducing measurement uncertainty in analytical and quality-control workflows. By specifying a 1 mg nominal value in a verified tolerance band, the component contributes to stable repeatability and simplified documentation for internal quality systems and audit trails. Compact design that protects measurement integrity A polished stainless-steel disc shape reduces surface contamination and eases gentle handling during calibration cycles. The compact form minimises air buoyancy effects at low masses and helps achieve reproducible placement on balance pans. Because of the very fine tolerance class, a protective case is recommended to prevent particulate contamination and mechanical damage during storage and transport. For formal traceability, a DAkkS calibration is advised; note that EU type approval for calibration weights will no longer be available after 30 November 2025, making accredited calibration an important step for long-term compliance. Practical applications and workshop confidence Engineered for laboratories, calibration services and precision workshops, the KERN 328-01 milligram weight supports verification tasks, method validation and routine balance checks. When integrated into a calibration schedule, the small mass helps maintain instrument performance and reduces downtime by catching drift early. The polished metal finish and disc form also make handling predictable during repeated use, contributing to consistent results and fewer retests — a direct efficiency gain for metrology teams and production control. For laboratory-grade traceability and reliable measurement, contact Metav Werkzeuge in Emmerich to request the KERN 328-01 milligram weight or speak with our consultants via info@metav-werkzeuge.com or +49 2822 7131930 Technical data Article number: T328-A SKU: 328-01 GTIN: 4045761240315 Manufacturer: KERN Country of origin: CN Tariff code: 84239090 Core specifications Nominal value: 1 mg OIML class: F1 Tolerance: 0.02 mg Form: disc Materials & features Material: stainless steel, polished Shape: disc Recommended: protective case for precision Calibration recommendation: DAkkS calibration Regulatory note: EU type approval for weights ends 30 November 2025 FAQ How accurate is the milligram weight for laboratory calibration? The KERN 328-01 milligram weight meets OIML F1 with a tolerance of 0.02 mg, providing the accuracy required for microbalance verification and high-precision calibrations. Which instruments is this weight suitable for? This calibration disc is intended for microbalances and precision balances where a 1 mg reference mass is required for routine checks and method validation. Is accredited calibration recommended or included? An accredited DAkkS calibration is recommended for formal traceability; the KERN 328-01 is typically supplied without calibration, so customers should arrange calibration to meet their documentation needs. How should the weight be stored and handled? Store the polished stainless-steel disc in a protective case and handle with tweezers or gloves to avoid fingerprints and contamination; a case is recommended due to the very fine tolerance class. Will the EU type approval affect future use? From 30 November 2025 EU type approval for calibration weights will no longer be available; for most applications a DAkkS calibration provides the necessary traceability and is therefore advised for continued compliance. KERN — Origin: China — GTIN: 4045761240315

Take advantage of high micro‑scale accuracy and a corrosion‑resistant finish to secure repeatable calibration results; order directly via Metav Werkzeuge or contact our consultants for tailored calibration and handling advice. Milligram weight KERN 328-02 (OIML F1, 2 mg, polished stainless steel) The Milligram weight is a precision calibration disc for analytical and microbalance verification in laboratories and calibration services. OIML F1 accuracy for milligram calibration Nominal value 2 mg in disc form Polished stainless steel construction Tight tolerance 0.02 mg for high precision Exceptional accuracy for micro‑scale calibration Designed for tasks that demand reliable microgram stability, this weight meets OIML F1 requirements and is specified at 2 mg with a manufacturing tolerance of 0.02 mg. Such classification supports traceable adjustment and verification of analytical balances and high‑precision scales, ensuring measurement uncertainty is minimised in routine laboratory workflows. The defined tolerance and certification class provide a measurable basis for conformity assessments and internal quality control routines. Durable finish and compact form for consistent handling The disc‑shaped construction combines a polished stainless steel surface with a compact profile that reduces contamination and facilitates cleaning. The polished finish improves wear resistance and simplifies handling while the flat disc form assists stable placement on balance pans and repeatable centring. For transport and long‑term preservation of metrological properties, use of a protective storage case is strongly recommended to avoid abrasion and environmental influences. Traceability and calibration path for accredited environments For legal metrology and accredited testing, a DAkkS certificate is advised as the accepted route to traceability; the EC initial verification for weights will no longer be available after 30 November 2025. A formal DAkkS calibration provides documented measurement uncertainty and a traceable certificate suitable for interlaboratory comparison, audits and quality management systems. The KERN 328-02 is therefore suited to laboratories that require documented conformity and stable reference values for high‑precision weighing equipment. For procurement guidance, DAkkS calibration options or to arrange delivery of KERN milligram weights, contact Metav Werkzeuge in Emmerich for expert advice and handling recommendations via info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical data Article number: T328-A Manufacturer: KERN SKU: 328-02 GTIN: 4045761240322 Country of origin: CN Facts Nominal value: 2 mg Tolerance (OIML): 0.02 mg OIML class: F1 Commodity code: 84239090 Special features Material: stainless steel Form: disc (plättchen) Surface: polished Recommendation: protective storage case recommended Calibration advice: DAkkS calibration recommended Intended use: reference weight for analytical and micro balances FAQ What does OIML class F1 mean for calibration tasks? OIML class F1 denotes a high level of accuracy for reference weights used in calibration and verification of precision balances; the Milligram weight specified as OIML F1 is suitable for tight uncertainty requirements in laboratory environments. Can the KERN 328-02 be supplied with an accredited calibration certificate? Yes, the KERN 328-02 can be supplied with a DAkkS calibration certificate, which ensures traceability and documented measurement uncertainty suitable for accredited testing and quality systems. Is the material suitable for long‑term use in laboratory conditions? The polished stainless steel construction offers corrosion resistance and ease of cleaning, supporting long‑term stability when stored and handled according to good metrological practice. Is a storage case necessary for this weight? A protective storage case is strongly recommended to prevent abrasion and contamination; use of a case preserves the metrological properties and supports repeatable results. For which applications is this milligram weight intended? The weight is intended for calibration and verification of analytical, micro and precision balances in laboratories, research facilities and calibration workshops where low measurement uncertainty is required. Metav Werkzeuge, Emmerich am Rhein, Germany — info@metav-werkzeuge.com — +49 2822 7131930

Take advantage of the combination of OIML F1 accuracy, a nominal value of 5 mg and a polished stainless‑steel disc for reproducible microbalance calibration; order directly via Metav Werkzeuge or consult our specialists for calibration and handling advice. KERN 328-03 milligram calibration weight — OIML F1, 5 mg, polished stainless‑steel disc The KERN 328-03 is a precision milligram calibration weight designed for microbalance verification and laboratory quality assurance, presented in a flat disc form for stable placement on balance pans. OIML F1 class accuracy Nominal value: 5 mg Polished stainless‑steel construction Disc shape optimised for microbalances Consistent microgram‑level accuracy for routine verification The calibration weight delivers OIML F1 accuracy with a stated tolerance of 0.02 mg, which translates into lower measurement uncertainty when used for routine verification of analytical and microbalances. This level of precision supports repeatable quality checks and helps maintain compliance with internal calibration plans. The clear numeric specification of the tolerance enables straightforward comparison with balance performance data and documentation requirements. Robust, low‑contamination design for everyday use Made from polished stainless steel, the weight resists corrosion and surface contamination, making handling and cleaning simple while preserving metrological properties. The disc shape provides a reliable seating on common microbalance pans, reducing the risk of tipping and ensuring stable readings during calibration cycles. This construction minimises handling‑induced variation and extends useful service life in laboratory and workshop environments. Calibration pathway and regulatory note for traceability EC initial verification of test weights will not be possible from 30 November 2025; for traceable results a DAkkS calibration is recommended, as it fulfils the needs of most applications requiring documented traceability. The nominal 5 mg value makes this weight suitable for small‑mass standards and microbalance adjustments, while formal calibration reports provide the evidence necessary for audits and quality management systems. Practical handling, storage and accessory recommendations Due to the fine accuracy, storage in a protective case is advised to avoid surface damage and contamination; an etui is recommended for transport and secure storage. When integrating the weight into calibration procedures, allow for thermal equilibration with the balance environment and use tweezers or gloves to avoid fingerprints. Clear labelling and secure storage help maintain the weight’s condition and ensure consistent calibration outcomes. For microbalance calibration tasks that demand milligram precision, contact Metav Werkzeuge in Emmerich for DAkkS calibration options, case recommendations and expert guidance via info@metav-werkzeuge.com or by phone at +49 2822 7131930 (WhatsApp +49 170 2837271) Technical Data SKU: 328-03 Article number: T328-A GTIN: 4045761240339 Manufacturer: KERN Origin: CN Core figures Nominal value: 5 mg OIML class: F1 Tolerance (OIML): 0.02 mg Material: Stainless steel Design / Special features Disc form (plättchen) Polished surface finish Intended for microbalance calibration Harmonised tariff code: 84239090 FAQ What level of accuracy does this calibration weight provide? The KERN 328-03 milligram calibration weight is specified as OIML F1 with a tolerance of 0.02 mg, offering accuracy suitable for microbalance verification and low‑mass routine checks. Is this weight suitable for analytical and microbalances? Yes, the nominal value of 5 mg and the disc form make this weight appropriate for microbalance applications and for use as a small‑mass standard in laboratory calibration procedures. How should the weight be handled and stored to preserve accuracy? Handle the calibration weight with tweezers or gloves and store it in a protective case; Metav Werkzeuge recommends using an etui to prevent contamination and surface damage which can affect readings. Can the weight be officially verified or calibrated for traceability? EC initial verification of test weights will not be possible from 30 November 2025; a DAkkS calibration is recommended for traceability and is considered equivalent for most purposes. What material is the weight made of and why does that matter? The weight is made from polished stainless steel, which provides corrosion resistance and a smooth surface that reduces contamination and wear, supporting long‑term stability. Metav Werkzeuge, Emmerich am Rhein — Email: info@metav-werkzeuge.com — Tel: +49 2822 7131930 — WhatsApp: +49 170 2837271

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

Take advantage of the combination of laboratory-grade accuracy, compact stainless-steel design and traceable calibration support for consistent small-mass measurements. Order the KERN 328-05 directly via Metav Werkzeuge or ask our consultants if needed. KERN 328-05 Milligram weight (OIML F1, 20 mg) — polished stainless-steel disc The KERN 328-05 is a precision milligram reference mass in disc form, engineered for calibration and high-resolution weighing tasks in laboratories and quality-control environments. OIML class F1 accuracy Nominal value 20 mg Polished stainless-steel disc design Tolerance 0.03 mg for precise calibration Consistent accuracy for low-mass calibration The KERN 328-05 delivers OIML class F1 performance at a nominal value of 20 mg, providing a reproducible standard for analytical balances and microbalances. The specified tolerance of 0.03 mg describes the permissible deviation under standard conditions and helps reduce measurement uncertainty when used as a reference mass. For laboratories that demand documented reliability, using a certified F1 weight minimises calibration drift and supports traceable measurement chains, which is essential for ensuring repeatable test results and meeting internal quality criteria. Durable form and material for long-term stability Manufactured as a polished stainless-steel disc, the mass combines corrosion resistance with easy surface maintenance. The disc shape supports secure placement on balance pans and reduces sensitivity to handling errors. A smooth finish lowers contamination risk and simplifies cleaning after use, preserving the calibration integrity over time. Because milligram weights are sensitive to environmental influences, a protective storage case is strongly recommended to prevent wear and particulate adhesion and to maintain the defined tolerance class. Seamless integration into calibration routines This calibration mass is suited for stepwise verification of precision balances and for use as a working standard in low-mass calibration procedures. Where statutory initial verification is required, note that EG initial verification of calibration weights will not be available after 30 November 2025; a DAkkS calibration is recommended for most traceability needs and is often equivalent for laboratory accreditation. Including a certified calibration record with the mass simplifies audit preparations and ensures compliance with internal SOPs and external quality assessments. Practical benefits that support productivity Selecting a dedicated 20 mg reference weight reduces the time spent on repeated adjustments and corrective actions during weighing tasks, contributing to smoother workflows. The combination of class-based accuracy and robust material choice results in fewer recalibrations and lower process interruptions. For facilities aiming to centralise supply and rely on consistent metrological quality, this small-mass standard supports precise measurement tasks across research, production control and quality assurance environments. Contact Metav Werkzeuge in Emmerich for DAkkS calibration advice, accessory recommendations and to arrange supply of the KERN 328-05 milligram weight. Technical data Article number / SKU: 328-05 Manufacturer: KERN GTIN: 4045761240353 Core specifications Nominal value: 20 mg Tolerance (OIML): 0.03 mg OIML class: F1 Tariff code: 84239090 Design & special features Material: polished stainless steel Shape: disc (plättchenform) Recommended accessory: protective case (etui) Calibration recommendation: DAkkS calibration advised Note: EG initial verification not possible after 30.11.2025 FAQ What does OIML class F1 mean for a 20 mg weight? OIML class F1 indicates a high-precision tolerance band suitable for calibration of high-resolution analytical balances; the 20 mg KERN 328-05 meets the strict limits associated with that class. Can the KERN 328-05 be used on any analytical balance? The 20 mg weight is intended as a reference for balances with appropriate resolution and load cell sensitivity; compatibility should be confirmed against the balance manufacturer’s calibration procedure. How should the milligram weight be stored between uses? Store the polished stainless-steel disc in a dedicated protective case to avoid contamination and mechanical wear; a clean, temperature-stable environment is recommended. Is a calibration certificate available for this weight? A DAkkS calibration is recommended and can be arranged to provide traceable documentation suitable for laboratory accreditation and audit purposes. Why is a protective case recommended for this weight? Due to the small nominal mass and tight tolerance, even minor contamination or scratches can affect accuracy; a case preserves surface condition and measurement reliability. Metav Werkzeuge, Emmerich am Rhein, Germany — info@metav-werkzeuge.com | +49 2822 7131930 | WhatsApp +49 170 2837271

Precise calibration solution in the milligram range: the polished 50 mg stainless steel disc conforms to OIML F1 accuracy with a tolerance of 0.04 mg, delivering reliable traceability for laboratory and industrial balances; order through Metav Werkzeuge or consult our specialists for application advice and calibration options Milligram weight 328-06 by KERN — 50 mg, OIML F1, polished stainless steel disc A Milligram weight intended as a high-precision mass standard for laboratory calibration and industrial metrology tasks, supplied in disc form for stable placement and repeatable results KERN precision class OIML F1 Nominal mass 50 mg with 0.04 mg tolerance Polished stainless steel disc for stability DAkkS calibration recommended for traceability Exceptional accuracy for sensitive balances The polished stainless steel disc is manufactured to meet OIML F1 requirements, providing a nominal mass of 50 mg with an allowed deviation of 0.04 mg. This level of precision supports repeatable calibration results on analytical and semi-micro balances, reducing measurement uncertainty in routine checks. The compact disc geometry improves seating stability on balance pans and simplifies handling in controlled environments. For many quality-assurance workflows, the compact mass standard increases throughput by shortening stabilisation times while preserving metrological integrity. Traceability and calibration fit for regulated environments Designed for professional metrology, the weight is compatible with formal traceability chains when accompanied by a certificate. Note that from 30 November 2025 the EC initial verification of calibration weights will no longer be possible; therefore, a DAkkS calibration is recommended, which is equivalent for most applications and ensures documented traceability suitable for audits. The combination of KERN manufacturing quality and accredited calibration secures conformity with internal quality systems and external standards, supporting reliable measurement results across production and laboratory processes. Practical handling, storage and workshop suitability The disc form factor and polished finish reduce surface contamination and make cleaning straightforward. For preservation of the mass and accuracy, storage in a suitable case is advised — particularly because of the fine tolerance class. The robust stainless steel material offers resistance to corrosion under normal laboratory conditions and supports repeated use without rapid wear. Where diverse material testing is required, this mass standard integrates into existing calibration routines and helps maintain consistent performance of precision balances across shifts and locations. Contact Metav Werkzeuge for tailored advice on KERN mass standards, DAkkS calibration options and suitable storage cases from our Emmerich location Technical Data SKU: 328-06 Article number: T328-A GTIN: 4045761240360 Manufacturer: KERN Material: stainless steel Form: disc (plättchenform) OIML class: F1 Nominal mass: 50 mg Tolerance: 0.04 mg Origin: CN Tariff number: 84239090 Facts Nominal mass: 50 mg Tolerance: 0.04 mg GTIN: 4045761240360 Tariff number: 84239090 Special features Polished stainless steel finish Disc shape for stable seating OIML F1 accuracy class Recommended: DAkkS calibration Case recommended due to high precision FAQ What accuracy class does this weight comply with? The mass conforms to OIML F1 accuracy, suitable for high-precision calibration tasks requiring a nominal mass of 50 mg with a tolerance of 0.04 mg. Is a calibration certificate available for the weight? Yes — a DAkkS calibration is recommended and can be supplied for the KERN milligram weight 328-06 to ensure traceability and documented conformity for audits. Can the weight be used on analytical balances? The polished stainless steel disc is intended for analytical and semi-micro balances; its 50 mg nominal mass and 0.04 mg tolerance make it appropriate for sensitive balance checks. How should the mass be stored and handled? Store the disc in a protective case to prevent contamination and mechanical damage; the polished surface allows easier cleaning and helps maintain measurement integrity. Why is DAkkS calibration recommended instead of EC initial verification? From 30 November 2025 EC initial verification for calibration weights will no longer be possible; DAkkS calibration provides equivalent traceability for most applications and is therefore advised. KERN — Origin: CN — For further information contact Metav Werkzeuge: info@metav-werkzeuge.com, +49 2822 7131930

Take advantage of the combination of high accuracy, corrosion-resistant material and traceable calibration options for reliable mass control in precise workflows. Order the milligram weight directly via Metav Werkzeuge or ask our consultants for DAkkS calibration and storage recommendations. KERN 328-07 Milligram Weight (OIML F1) — 100 mg, Polished Stainless Steel A precision milligram weight KERN 328-07 designed for laboratory calibration and high-accuracy mass checks on analytical balances and precision scales. OIML class F1 accuracy, 0.05 mg tolerance 100 mg nominal value in disc format Polished stainless steel body for stability Suitable for high-precision calibration tasks Precision that meets legal and laboratory requirements The OIML Class F1 rating denotes a level of accuracy suited to high-precision calibration and verification tasks. With a declared tolerance of 0.05 mg, the weight provides a reliable reference for balancing instruments where milligram-level uncertainty matters. The nominal 100 mg value is ideal for checking the lower end of analytical ranges and for routine quality assurance procedures in laboratories and calibration shops. Durable design for stable results and easy handling Manufactured from stainless steel with a polished finish, the disc-shaped mass offers reduced surface contamination and consistent placement on balance pans. The disc shape promotes repeatable seating and minimises handling variability; the polished surface also makes cleaning straightforward, supporting long-term measurement stability. A storage case is recommended for this class of weight to limit contamination and mechanical wear during transportation or shelving. Practical advantages for calibration workflows The weight is primarily intended for use with analytical balances and precision scales where traceable reference masses are required. The compact form factor simplifies integration into calibration kits, while the material choice reduces susceptibility to corrosion and environmental effects. For users unfamiliar with OIML classes: this specification indicates conformity with international tolerances, ensuring comparability of results across different laboratories and instruments. Traceability and conformity for quality systems As regulatory frameworks evolve, the recommended route for official traceability is a recognised calibration certificate. The manufacturer and supplier advise that EC initial verification of test weights will no longer be available after 30 November 2025; therefore a DAkkS calibration is recommended for most uses to maintain documented measurement traceability. Choosing a certified calibration route supports internal quality control and external audits, giving technicians and managers confidence in measurement data and compliance. Contact Metav Werkzeuge in Emmerich for tailored advice on DAkkS calibration, accessory cases and supply of the KERN 328-07; email info@metav-werkzeuge.com or call +49 2822 7131930 for prompt assistance Technical data Article number: 328-07 Manufacturer: KERN Model number: T328-A GTIN: 4045761240377 Country of origin: CN Tariff number: 84239090 Facts Nominal value: 100 mg OIML class: F1 Tolerance (OIML): 0.05 mg Special features Disc form Polished stainless steel Milligram class weight Recommended: case/etui for storage DAkkS calibration recommended FAQ What level of accuracy does this weight provide? The KERN 328-07 milligram weight is specified as OIML Class F1 with a tolerance of 0.05 mg, making it suitable for high-precision calibration and verification tasks. Can this weight be used for routine calibration of analytical balances? Yes, the 100 mg nominal value and F1 tolerance make it appropriate for routine checks and calibration of analytical balances and other precision weighing instruments. Is a protective case necessary for this weight? A case is recommended for the KERN 328-07 to prevent contamination and mechanical damage; Metav advises using a suitable etui for weights of this accuracy. What calibration certificate is recommended for this weight? A DAkkS calibration is recommended for traceability and audit compliance, especially since EC initial verification for test weights will no longer be available after 30 November 2025. What material is the weight made from and why does that matter? The weight is made from polished stainless steel, which reduces corrosion risk, facilitates cleaning and helps maintain long-term mass stability. KERN; address and contact not specified in product data

Taking advantage of OIML Class F1 accuracy and a compact 200 mg nominal value ensures reliable calibration of analytical balances; combined with the polished stainless steel plate and a tight ±0.06 mg tolerance, the weight supports consistent measurement routines. Order the part directly via Metav Werkzeuge or consult our technical team for calibration options. KERN 328-08 Milligram weight — OIML F1, 200 mg, polished stainless steel plate KERN 328-08 Milligram weight for precise calibration of analytical and precision balances in laboratories and calibration laboratories OIML class F1 certified Nominal value 200 mg Polished stainless steel plate Tolerance ±0.06 mg Audit-ready accuracy for traceable calibration The combination of OIML Class F1 classification and a nominal mass of 200 mg delivers the repeatability and stability expected for routine laboratory calibrations. The specified tolerance of ±0.06 mg describes the allowable deviation under defined conditions and supports reliable adjustment and verification of high-resolution scales. For users unfamiliar with OIML classes: F1 indicates a high-precision mass standard suitable for many laboratory and industrial applications where small uncertainties are critical. This level of precision reduces measurement uncertainty and simplifies documentation for internal quality checks. Robust, low-maintenance design built for regular handling The polished stainless steel construction resists corrosion and is straightforward to clean, ensuring the mass remains stable in everyday use. The plate form improves handling for milligram values, allowing safe placement and retrieval with tweezers or forceps while minimising surface contact that could affect the mass. The compact geometry also helps to reduce air buoyancy effects during weighing operations when paired with appropriate environmental controls. For storage and transport, a protective case is recommended to preserve the surface finish and measurement integrity. Compliance strategy and calibration recommendations for longevity Following the change in verification regulations, the EG initial verification of calibration weights will not be possible after 30 November 2025; instead, a DAkkS calibration is recommended for traceability and conformity across most applications. The KERN 328-08 can be supplied with or without formal calibration; where traceable results are required for audits or ISO-compliant quality systems, DAkkS certification provides documented measurement uncertainty and comparability. For laboratories seeking to reduce supplier complexity and secure consistent supply, choosing a certified mass standard with recommended calibration services ensures long-term measurement confidence. For precise mass standards from KERN, rely on Metav Werkzeuge as your supplier — contact info@metav-werkzeuge.com or call +49 2822 7131930 to discuss DAkkS calibration and suitable protective cases Technical data Article number: 328-08 Manufacturer: KERN Model / art. no.: T328-A SKU: 328-08 GTIN: 4045761240384 Facts Nominal value: 200 mg Tolerance (OIML F1): 0.06 mg Commodity code: 84239090 Origin: CN Special features Material: stainless steel (polished) Form: plate OIML class: F1 Recommended: protective case / etui Recommendation: DAkkS calibration advised FAQ How precise is this mass for laboratory calibration? The KERN 328-08 milligram weight offers OIML Class F1 precision with a nominal value of 200 mg and a tolerance of ±0.06 mg, making it suitable for high-resolution analytical balances where low uncertainty is required. Can this weight be used for routine checks on analytical balances? Yes; the polished stainless steel plate design and the F1 classification make the weight appropriate for regular balance checks and routine calibration tasks in laboratory and workshop environments. Is a protective case necessary for this milligram weight? A protective case is recommended to protect the polished surface and to maintain measurement stability; Metav Werkzeuge suggests using an etui for transport and storage to avoid contamination and surface damage. What calibration services are appropriate for this weight? Given regulatory changes, a DAkkS calibration is recommended for traceable and auditable results. DAkkS calibration documents measurement uncertainty and is suitable for most laboratory quality systems. Does the manufacturer offer information about conformity after 2025? The EG initial verification of calibration weights ends on 30 November 2025; therefore, DAkkS calibration is advised for continued conformity and traceability when using the KERN 328-08. Metav Werkzeuge, Emmerich am Rhein, Germany · info@metav-werkzeuge.com · +49 2822 7131930 · WhatsApp +49 170 2837271

Take advantage of OIML F1 accuracy, a 500 mg nominal value and a tight 0.08 mg tolerance for reliable routine calibration; order the 328-09 milligram weight directly via Metav Werkzeuge or ask our consultants if needed. 328-09 Milligram weight by KERN — OIML F1, 500 mg, polished stainless steel A 328-09 milligram weight for precision calibration of laboratory and workshop balances, supplied as a polished disc for stable handling OIML F1 class for milligram accuracy Nominal value 500 mg with 0.08 mg tolerance Polished stainless steel disc shape KERN brand quality and traceability Consistent calibration results for routine and audit use The polished stainless steel disc delivers stable behaviour on fine balances, ensuring repeatable readings and minimal surface contamination. As an OIML F1 weight with a 500 mg nominal value and a measured 0.08 mg tolerance, it provides a clear, measurable basis for adjustment and verification tasks. For workshops and calibration labs that prioritise throughput, the combination of small form factor and tight tolerance reduces rework and shortens verification cycles, supporting efficient quality control processes. Robust handling and easy identification at the bench Constructed from high-grade stainless steel and finished to a polished surface, the disc design simplifies placement and removal without compromising metrological performance. The compact form factor minimises air disturbance during handling and is less prone to accidental tipping on a balance pan. These physical attributes translate into fewer handling errors and improved operator confidence when performing sensitive mass checks, which in turn helps maintain production continuity and reduces measurement uncertainty in everyday operations. Traceability and calibration options for regulated environments The weight is manufactured by KERN, a recognised name in precision metrology, and is suitable for documented calibration workflows. Since type approval under certain EU schemes will change after 30.11.2025, consideration of a DAkkS calibration is recommended for traceable results that meet most regulatory and audit requirements. Choosing a documented calibration path secures measurement traceability and supports compliance with internal quality management systems and external audits. For traceable calibration with KERN precision, request the 328-09 milligram weight via Metav Werkzeuge and enquire about DAkkS calibration and delivery from our Emmerich site. Technical data Article number: T328-A SKU: 328-09 GTIN: 4045761240391 Manufacturer: KERN Material: stainless steel OIML class: F1 Facts Nominal value: 500 mg Tolerance (OIML): 0.08 mg Tariff code: 84239090 eCl@ss: 32120103 Special features Disc shape (plättchen) Polished finish Milligram-level accuracy Suitable for balance calibration Recommendation: DAkkS calibration available FAQ What accuracy class does this weight meet? The 328-09 meets OIML F1 class requirements, offering milligram-level accuracy suitable for fine balance verification. What is the nominal value and tolerance of the weight? The weight has a nominal value of 500 mg with an OIML tolerance of 0.08 mg, as stated for the 328-09. Is the material suitable for routine use in workshops? Yes; the 328-09 is made from polished stainless steel, which resists corrosion and is easy to clean after regular use. Can this weight be supplied with calibration documentation? Calibration services such as DAkkS calibration are recommended for the 328-09 to provide traceable documentation that supports quality systems and audits. What is the recommended handling to preserve accuracy? Handle the polished disc with tweezers or gloves, store it in a protective case, and avoid touching measuring surfaces to maintain the 328-09’s specification. KERN — Origin: CN — GTIN: 4045761240391

Take advantage of a lightweight, polyamide handling tool that ensures a secure grip on small calibration weights up to 200 g; its 100 mm length combines fine control with easy handling for routine calibration tasks. Order directly via Metav Werkzeuge or consult our specialists for matching accessories and delivery from Emmerich. KERN 315-242 Tweezer (Polyamide, 100 mm) KERN 315-242 is a precision plastic tweezer for secure handling of small calibration weights in laboratories and workshops Secure grip for small calibration weights Suitable for weights E1–M3, 1 mg–200 g 100 mm length for precise handling Polyamide construction, lightweight 10 g Precision handling reduces contamination and measurement error The compact design provides a controlled hold when placing and removing calibration masses, helping to preserve the integrity of sensitive components. Made from polyamide, the instrument is gentle on metallic and plated surfaces and reduces risk of scratching or marking. The compatibility with 1 mg–200 g weights across E1–M3 classes means the tool supports a wide range of calibration workflows, supplying consistent handling where repeatability matters. Built for routine use, the tweezer contributes to faster setup times and fewer handling-related deviations. Comfortable length and light weight for repetitive tasks At 100 mm, the geometry balances reach and tactile feedback to enable precise positioning without overextension of the hand. The construction results in a lightweight tool — approximately 10 g — that decreases operator fatigue during repeated handling. The slim tips facilitate access to small masses and narrow pans, while the overall form factor supports careful handling during calibration runs. Clear, repeatable manipulation of weights improves throughput and aids adherence to internal quality procedures. Durable, easy-care design for laboratory and workshop environments The choice of high-quality plastic provides a durable and easy to clean solution suitable for environments where metal tweezers could risk scratching or produce magnetic influence. Maintenance is straightforward: wipe clean and store in a dry place to maintain tip alignment and performance. The tool's simple construction minimises service requirements and offers a dependable adjunct to balances, scales and precision measuring equipment in both calibration laboratories and industrial workshops. Contact Metav Werkzeuge today for tailored advice and supply of the KERN 315-242 tweezer; our Emmerich-based team can confirm suitability for specific calibration setups and arrange prompt delivery via the central European warehouse (info@metav-werkzeuge.com | +49 2822 7131930 | WhatsApp +49 170 2837271) Technical data Article number: 315 SKU: 315-242 Manufacturer: KERN GTIN: 4045761003439 Material: Polyamide (plastic) Facts Length: 100 mm Weight: 0.01 kg Suitable weight range: 1 mg–200 g Special features Secure grip for small calibration weights Suitable for weight classes E1–M3 Lightweight construction for reduced operator fatigue Simple cleaning and low maintenance FAQ What weight range is compatible with these tweezers? The KERN 315-242 tweezer is suitable for handling calibration weights from 1 mg up to 200 g. Which weight classes can be handled safely with this tool? This tweezer supports weights across classes E1 to M3, making it appropriate for a broad range of calibration tasks. Is the material safe for delicate or plated masses? Yes, the polyamide construction of the KERN 315-242 is designed to be gentle on delicate and plated surfaces, helping to avoid scratches. How should the tweezer be maintained to ensure longevity? Routine care for the KERN 315-242 involves simple cleaning with a soft cloth and storage in a dry place to preserve tip alignment and performance. Can this tool be used in both laboratory and workshop environments? The lightweight, easy-care design of the KERN 315-242 makes it suitable for calibration benches in laboratories as well as workshop settings where precise handling is required. Metav Werkzeuge, Emmerich am Rhein, Germany — Email: info@metav-werkzeuge.com — Tel: +49 2822 7131930 — WhatsApp: +49 170 2837271

Take advantage of a simple, reliable accessory that keeps calibration masses free from dust while preserving accuracy and prolonging service life. The combination of gentle bristles, low weight and practical handling ensures efficient routine maintenance of scales and weights. Order the KERN brush directly via Metav Werkzeuge or consult our advisors for further details. KERN 318-270 Dust Brush — compact brush for gentle cleaning of calibration weights The KERN 318-270 dust brush is a lightweight accessory designed to remove dust and particles from calibration weights and weighing surfaces in laboratories and workshops. Soft bristles for gentle cleaning Designed for calibration weights Lightweight and easy to handle Preserve measurement accuracy with gentle, targeted cleaning Regular cleaning of calibration masses prevents contamination that can alter mass values and affect the repeatability of results. The compact brush offers gentle bristles that remove dust without abrading surfaces or leaving residues, helping to maintain the precision of weights used in verification and calibration. For technicians and workshop teams, this reduces the frequency of recalibration and supports consistent measurement quality across production and quality-assurance processes. Practical handling for routine maintenance and quick interventions The accessory is intentionally lightweight and easy to manoeuvre during daily maintenance tasks, enabling swift removal of particles from weight stacks and pans without disassembly. Ergonomic handling minimises the risk of accidental knocks or slips near sensitive balances, while the brush design supports access to small grooves and recessed areas. This results in faster cleaning cycles and less downtime, contributing to a more efficient workflow in busy metrology environments. Reliability in supply and fit for professional environments The brush is supplied by a recognised manufacturer for weighing technology and suits workshops, service departments and calibration laboratories that require straightforward maintenance tools. Paired with Metav Werkzeuge’s role as a dependable distributor, this accessory supports a transparent supply chain and practical on-bench readiness. Investing in simple, purpose-built maintenance tools safeguards the performance of weighing equipment and complements broader quality-management measures. Contact Metav Werkzeuge to procure the KERN 318-270 dust brush for dependable maintenance of calibration weights or to request additional technical information Technical data Article number: 318 SKU: 318-270 Manufacturer: KERN GTIN: 4045761004146 Facts Weight: 0.01 kg Eclass: 21041109 Special features Suitable for cleaning calibration weights Rapid dispatch available via distributor FAQ How does this brush protect calibration accuracy? The brush removes dust and particles that can adhere to masses; using the KERN 318-270 dust brush helps maintain the declared mass values and stable measurement results. Is the brush suitable for all types of laboratory weights? The brush is intended for routine cleaning of calibration weights and standard weighing pans; compatibility with specialised mass geometries should be assessed case by case. Can the brush be used on balance pans without causing damage? Yes, the soft bristles are designed for gentle cleaning and avoid abrasive contact that could harm pans or plated surfaces. Manufacturer: KERN — Address: not specified — Contact: not specified