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5 kg Precision Test Weight Button Polished Stainless Steel, OIML Class E1, 2.5 mg Tolerance - KERN

Product information "5 kg Precision Test Weight Button Polished Stainless Steel, OIML Class E1, 2.5 mg Tolerance - KERN"

Secure consistent calibration with a 5 kg OIML E1 single weight: 2.5 mg tolerance and polished stainless steel provide a stable, traceable reference mass for laboratory and industrial use. Order the KERN 307-13 directly via Metav Werkzeuge or consult our specialists for application advice.

KERN 307-13 — single calibration weight, OIML E1 accuracy, 5 kg, polished stainless steel

The KERN 307-13 is a single calibration weight in button form, engineered for laboratory and industrial scale verification where high accuracy and traceability are required.

  • OIML class E1 accuracy, 2.5 mg tolerance
  • 5 kg nominal mass in button form
  • Polished stainless steel for corrosion resistance
  • Traceable SKU 307-13, manufacturer KERN

Reliable reference for precision workflows

A certified reference mass in OIML E1 provides the tightest legal-class accuracy suitable for calibration laboratories and high-end industrial verification. With a 5 kg nominal value and an OIML tolerance of 2.5 mg, this single weight reduces measurement uncertainty and supports repeatable results during routine checks. The high-precision classification helps streamline calibration procedures and reduces downtime by cutting the number of re-measures needed to confirm instrument performance. Where documented traceability and conformity are part of quality management, this mass standard supports uncomplicated integration into existing calibration chains.

Built for regular use and careful handling

The mass is manufactured from polished stainless steel, giving good resistance to surface corrosion while presenting a smooth finish that minimises particulate adherence. Its button form concentrates mass centrally for stable placement on pans and helps with handling during frequent transfers. Cylinder dimensions of 80×140 mm are balanced for laboratory balances and industrial scales. For such a high-accuracy artefact a protective case is recommended to prevent contamination and mechanical damage during storage and transport; Metav provides a selection of suitable cases to preserve long-term performance and calibration integrity.

Compliance, traceability and system benefits

This single weight is supplied by KERN and carries the necessary identifiers for documentation and audits, making it straightforward to include in quality systems and calibration protocols. Using a certified E1 mass assists laboratories in meeting accreditation requirements and supports a transparent calibration history. Supplied through Metav Werkzeuge’s quality-controlled logistics, the item benefits from careful stock handling at the Emmerich site, which acts as a quality filter for European customers and contributes to reliable delivery and documentation.

For tailored advice and to secure the KERN 307-13 through Metav Werkzeuge—including guidance on the recommended protective case—contact our team in Emmerich today

Technical data

  • Article number: 307
  • SKU: 307-13
  • GTIN: 4045761002777
  • Manufacturer: KERN
  • Country of origin: DE

Facts

  • Nominal mass: 5 kg
  • OIML class: E1
  • Tolerance (OIML): 2,5 mg
  • Cylinder dimensions: 80×140 mm
  • Tariff/HS code: 84239090

Special features

  • Polished stainless steel
  • Button form
  • Single calibration weight
  • Recommended protective case for E1 class

FAQ

What level of accuracy does this calibration weight provide?
The KERN 307-13 single weight is OIML class E1 with a tolerance of 2.5 mg, suitable for high-precision calibration tasks in laboratories and industry.

Is the 307-13 suitable for routine verification of industrial scales?
Yes. As an E1-class mass, the KERN 307-13 is intended for reference calibrations and is appropriate for routine verification where tight tolerances are required.

How should the weight be stored to maintain accuracy?
Store the weight in a protective case and handle it with clean gloves; Metav Werkzeuge recommends a suitable case to avoid contamination and mechanical wear that could affect long-term performance.

Does the product include traceability documentation?
The KERN 307-13 is supplied with manufacturer identification and is compatible with standard traceability records used in accredited calibration workflows.


Metav Werkzeuge, Emmerich am Rhein, Germany · info@metav-werkzeuge.com · +49 2822 7131930

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1 Pair Cotton Gloves Protecting Test Weights From Finger Oil And Moisture, For Weights Up To 2 kg - KERN

Take advantage of gentle, cotton handling and reliable contamination protection to extend the service life of precision weights; order directly from Metav Werkzeuge or contact our consultants for tailored advice. Gloves KERN 317-280 — Cotton gloves for protecting test weights up to 2 kg The Gloves KERN 317-280 are designed to protect test weights and precision masses from finger grease and moisture during everyday handling in workshops and calibration labs. Cotton construction for gentle handling Protects test weights from finger grease Suitable for test weights up to 2 kg Lightweight, reusable pair for workshop use Preserve measurement accuracy with clean handling Handling delicate masses without contamination helps to maintain precision and reduces the need for frequent recalibration. The KERN cotton gloves provide an effective barrier against finger grease and light moisture, keeping surfaces free of oils that can alter measured mass. By preventing direct contact, the gloves contribute to consistent readings and minimise the risk of measurement drift, supporting reliable quality control in routine metrology tasks. Practical protection for everyday workshop routines Lightweight and easy to store, this pair is tailored for straightforward use in production and service environments. The simple design allows quick application while handling small test weights, helping to maintain workflow speed without compromising care. Suitable for masses up to 2 kg, the gloves enable safe manipulation of common calibration weights, combining protection with operational convenience to keep processes efficient and repeatable. Why cotton is the right material for delicate tools Cotton fibres offer a soft, absorbent contact surface that decreases the transfer of oils and residues onto sensitive metal surfaces. The natural fabric reduces abrasion risk compared with harsher materials, providing gentle handling that preserves finish and mass integrity. At an almost negligible net weight, the gloves do not affect the handling ergonomics of small weights but do increase confidence in routine handling and storage practices. Contact Metav Werkzeuge for personalised advice or to secure the KERN cotton gloves from our Emmerich stock; our team will assist with product details and suitability for specific calibration needs. Technical data Article number: 317 SKU: 317-280 Manufacturer: KERN Facts Net weight: 0.01 kg Suitable for test weights up to 2 kg GTIN: 4045761003866 Special features Material: cotton Protects test weights from finger grease and moisture Supplied as one pair Segment: Test weight accessories FAQ Are these gloves suitable for precision balances? The KERN 317-280 gloves are intended to protect precision masses and are suitable for handling small test weights used with precision balances. How do the gloves protect test weights? The cotton fibres of the gloves reduce oil and moisture transfer, helping to keep the surface of test weights clean and preserving measurement accuracy. Can the gloves be used for weights above 2 kg? The gloves are specified as ideal for handling test weights up to 2 kg; heavier items may require different handling methods or protective equipment. What material are the gloves made from? The gloves are made from cotton, chosen for its gentle contact and absorbent properties. Is the KERN 317-280 pair reusable? The gloves are designed for repeated use in workshop routines, offering lightweight, practical protection for daily handling of test weights. Metav Werkzeuge — Emmerich am Rhein, Germany · eMail: info@metav-werkzeuge.com · Phone: +49 2822 7131930 · WhatsApp: +49 170 2837271

Regular price: €6.00
Product Quantity: Enter the desired amount or use the buttons to increase or decrease the quantity.
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5kg Wooden Case For Single Calibration Weights, Padded - KERN

Combine secure, padded storage with a durable wooden shell to protect a single 5 kg calibration weight from shocks and contamination; benefit from compatibility with E1–F1 accuracy classes and order the wooden case directly via Metav Werkzeuge or consult our advisors for precise fit and delivery. Wooden case 317-130-100 — Padded storage for single 5 kg weights (KERN) A wooden case designed to house a single 5 kg calibration weight, suitable for accuracy classes E1–F1 and for button/compact weight designs. Padded interior for gentle weight protection Fits KERN single weights, models 307–329 Designed for 5 kg button/compact weights Solid wood case for workshop durability Protects calibration accuracy and reduces maintenance costs The padded interior and robust wooden shell provide reliable protection against knocks, dust and light impacts, which helps to maintain the calibration integrity of precision weights. By preventing surface damage and contamination, the case reduces the frequency of re-calibration and repair, delivering a clear cost-benefit in routine workshop operations. This protective solution is particularly relevant for weights used in metrology and quality assurance, where maintaining class E1–F1 specification is essential for traceable measurement results. Clear fit and practical handling for busy workshops Built to accept the common KERN single-weight formats, the case is compatible with KERN 307, 316, 317, 326, 327 and 329 models and accommodates the button/compact form factor. The internal padding secures the 5 kg nominal weight in place during transport, while the compact wooden design simplifies storage on-site or in transit between departments. These attributes improve workflow efficiency by offering immediate, safe accessibility to a single calibration weight when measurements are required, reducing handling time and the risk of accidental damage. Durable materials that signal care and professionalism Made from solid wood and finished to withstand workshop conditions, the case conveys a practical, professional image while delivering functional longevity. The construction preserves the weight’s surface and geometry, supporting consistent metrology performance. For laboratories and service providers that prioritise equipment longevity and traceability, this wooden case represents a straightforward measure to protect valuable calibration assets and to keep measurement standards stable over time. Contact Metav Werkzeuge for availability, stock verification and tailored advice regarding the wooden case 317-130-100 and compatible calibration weights Technical data Article number: 317-130-100 Manufacturer: KERN GTIN: 4045761003750 Origin country: DE Commodity code: 84239090 Facts Case weight: 0.57 kg Fits nominal weight: 5 kg Suitable accuracy classes: E1–F1 Special features Material: wood Interior: padded Compatible with KERN single weights 307, 316, 317, 326, 327, 329 Designed for button/compact weight form FAQ What weights fit this wooden case? The wooden case 317-130-100 is designed for a single 5 kg calibration weight and is compatible with KERN single-weight models 307, 316, 317, 326, 327 and 329. Is the case suitable for E1 class weights? Yes. The case accommodates weights for accuracy classes E1–F1, offering appropriate protection to help maintain class compliance. How does the padding benefit the weight? The padded interior minimises movement and absorbs minor shocks, protecting the weight’s surface and geometry and thereby supporting stable calibration results. Can the case be used for transport between sites? Yes. The compact wooden construction with internal padding is intended for safe short-distance transport and on-site storage of a single calibration weight. What material is the case made from? The case is made of wood with an internal padded compartment for gentle protection of the calibration weight. Metav Werkzeuge, Emmerich am Rhein, Germany — Email: info@metav-werkzeuge.com — Phone: +49 2822 7131930 — WhatsApp: +49 170 2837271

Regular price: €101.00
Product Quantity: Enter the desired amount or use the buttons to increase or decrease the quantity.
Blaues Kunststoff Etui für Einzelgewichte. Das Etui ist zylindrisch mit Rillen auf der Seite. Es sieht ein bisschen so aus wie eine Dose für Filme oder eine Regentonne in Miniatur.
5kg Plastic Single Weight Case E2 For Button/Compact Weights - KERN

Take advantage of the durable plastic construction, the compact format for 5 kg E2 single weights and the case’s lightweight handling for consistent, protected storage; order the KERN 317-130-400 through Metav Werkzeuge or consult our advisors for specification support. KERN 317-130-400 Plastic weight case — for single 5 kg E2 calibration weights, button/compact format The KERN 317-130-400 is a purpose-made plastic case for secure storage and transport of single calibration weights in the 5 kg nominal value and E2 accuracy class, suitable for laboratories and workshop environments where organised weight handling is required. Plastic case for single calibration weights Designed for 5 kg weights, class E2 Fits button/compact weight designs Lightweight, corrosion-resistant construction Secure protection for precision weights and traceability The carrying solution is designed to safeguard E2 calibration weights by reducing exposure to dust, knocks and surface contamination. The robust plastic exterior provides shock-attenuating support while preserving the nominal value of the weight; this protection contributes directly to prolonged service intervals and fewer recalibrations, which supports efficient measurement workflows and cost control. The E2 classification refers to a high-precision tolerance band for reference weights, ensuring suitability for calibration and verification tasks where documented accuracy matters. Space-saving organisation that speeds up routine tasks With a compact footprint tailored to the button/compact weight form, the case enables tidy storage on workshop trolleys or laboratory shelves and simplifies quick selection during measuring routines. The low mass of the case (listed as 0.02 kg) minimises additional handling weight while maintaining stable retention of the single weight. Organisational gains translate into measurable time savings in repeated processes, supporting higher throughput without compromising metrological discipline. Practical material choice for everyday workshop use Constructed from industrial-grade plastic, the case resists corrosion and is easy to keep clean, reducing the risk of contaminants affecting sensitive surfaces. The material choice supports frequent handling and transport between workstations. Supplied within a quality-controlled network, this storage solution aligns with professional metrology requirements and complements a broader inventory of calibration accessories for systematic measurement routines, strengthening operational reliability. Contact Metav Werkzeuge in Emmerich for tailored advice or a quotation on the KERN 317-130-400 plastic weight case — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data SKU: 317-130-400 Article number: 317 GTIN: 4045761081420 Manufacturer: KERN Customs tariff number: 84239090 Facts Nominal value: 5 kg Class: E2 Weight: 0.02 kg Country of origin: Germany Special features Material: Plastic Suitable for: Single weights (button/compact) Product group: Plastic cases for calibration weights FAQ What nominal value and class is the case intended for? The case is intended for single calibration weights with a nominal value of 5 kg in E2 accuracy class and is specified as SKU 317-130-400 from KERN. Can the case be used for different weight designs? The KERN 317-130-400 is optimised for button/compact weight designs; compatibility with other formats should be verified against the weight geometry. Is the material suitable for workshop environments? Yes — the plastic construction is corrosion-resistant and easy to maintain, making the case suitable for regular workshop or laboratory use. Does Metav provide advice on selection and compatibility? Metav Werkzeuge offers technical guidance and can advise on suitability for specific calibration setups and workflows. Manufacturer: KERN, Germany — Address and direct contact not provided

Regular price: €27.00
Product Quantity: Enter the desired amount or use the buttons to increase or decrease the quantity.
Blaues Kunststoff Etui für Einzelgewichte. Das Etui ist zylindrisch mit Rillen auf der Seite. Es sieht ein bisschen so aus wie eine Dose für Filme oder eine Regentonne in Miniatur.
5kg Aluminium-Protected Case For Single Test Weights Button/Compact Padded, E1–M3 - KERN

Take advantage of a robust combination of aluminium protection, a padded interior and compatibility with precision weight classes to keep calibration weights safe and inspection-ready. Order the case directly via Metav Werkzeuge or consult our specialists for application advice. Aluminium-protected case for single calibration weights, padded and durable The Aluminium-protected case offers secure transport and storage for single calibration weights used in precision weighing applications. Padded interior for secure storage Aluminium protective shell Designed for single calibration weights Suitable for classes E1–M3 Protection that preserves calibration reliability A well-engineered storage solution reduces handling risks and preserves measurement integrity. The Aluminium-protected case combines a robust aluminium shell with a padded interior to absorb shocks and prevent surface damage to high-accuracy weights. For laboratories and workshops that rely on traceable mass values, this reduces the need for frequent recalibration by helping to maintain the condition of the weights. The result is fewer interruptions in quality checks and a more reliable calibration chain. Practical organisation for compact weights Internally, this case is arranged for organised stowage of single calibration weights in button or compact form. The layout supports quick visual checks and efficient handling during routine calibration tasks, which shortens preparation time and minimises handling errors. Clear separation of individual weights also prevents contact between items, maintaining each mass artefact’s surface finish and nominal value. Lightweight, durable material for everyday use Constructed from aluminium, the case strikes a balance between low weight and mechanical protection, making it suitable for regular transport between workstations or to external calibration services. The material resists corrosion and provides reliable shielding against dents and impacts without adding excessive bulk. For environments where tools and test equipment are frequently on the move, the aluminium construction delivers long service life with consistent protective performance. Built for standards and dependable workflows Designed for nominal 5 kg weights and compatible with accuracy classes E1–M3, the case supports a range of high-precision applications. Choosing a purpose-built storage solution reduces the probability of handling-related drift and helps maintain compliance with calibration protocols. The combination of protective structure and practical organisation supports efficient workflows in metrology, quality assurance and precision workshops. For secure storage and transport of KERN single calibration weights, contact Metav Werkzeuge in Emmerich for expert advice and reliable supply Technical data Article number: 317-130-600 SKU: 317-130-600 GTIN: 4045761222731 Manufacturer: KERN Material: Aluminium Suitable for nominal weight: 5 kg Suitable for classes: E1–M3 Padded interior: yes Core specifications Case weight: 1.1 kg Tariff number: 84239090 ECLASS: 21100103 Special features Padded interior Aluminium-protected shell For single weights (button/compact) Origin: CN FAQ Is this case suitable for 5 kg E1 calibration weights? Yes. The Aluminium-protected case is specified for nominal 5 kg weights and is compatible with accuracy classes E1–M3, making it suitable for high-precision applications. How does the padding protect high-accuracy weights? The padded interior prevents direct contact and cushions shocks, which helps to preserve the surface and mass values of weights stored in the Aluminium-protected case. Can the case be used for transport between sites? Yes. The aluminium shell and padded interior provide protection for transport; the case is designed for everyday movement of calibration weights without excessive weight penalty. Which weight forms fit inside the case? The internal layout is arranged for single calibration weights in button or compact form, ensuring organised storage and easy access. Who manufactures this case and what is the SKU? The case is manufactured by KERN, SKU 317-130-600, and is intended for secure handling of precision calibration weights. Manufacturer: KERN; Distributor: Metav Werkzeuge, Emmerich am Rhein; Email: info@metav-werkzeuge.com; Phone: +49 2822 7131930

Regular price: €53.00
Product Quantity: Enter the desired amount or use the buttons to increase or decrease the quantity.