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20 kg Test Weight Button Shape Polished Stainless Steel OIML E1 10 mg Tolerance - KERN

Product information "20 kg Test Weight Button Shape Polished Stainless Steel OIML E1 10 mg Tolerance - KERN"

Take advantage of the combination of highest-class accuracy, robust stainless-steel construction and ergonomics for reliable balance verification; order directly via Metav Werkzeuge or ask our consultants for application advice.

KERN 307-15 calibration weight — 20 kg, OIML class E1

The KERN 307-15 is a single calibration weight designed for high-precision verification of laboratory and industrial balances, optimised for traceable mass checks in calibration and QA environments

  • OIML class E1 accuracy
  • Nominal mass 20 kg
  • Polished stainless steel construction
  • Knob form for secure handling

Traceable accuracy that meets strict standards

The weight conforms to OIML class E1, ensuring an exceptionally low nominal tolerance of 10 mg for a 20 kg reference mass. This level of accuracy is intended for laboratories and calibration houses where legal metrology and tight measurement uncertainty budgets are paramount. Certification to this class implies that the mass value has been determined and documented with a measurement uncertainty compatible with high-precision work. Using such a reference mass reduces uncertainty propagation in verification tasks and supports compliance with internal quality procedures and external audits.

Durable finish and safe handling for routine use

Constructed from polished stainless steel, the component combines corrosion resistance with a surface finish that minimises contamination and eases cleaning. The knob design provides a clear ergonomic advantage when placing or removing the mass from balances, reducing the risk of accidental contact and transfer errors during handling. These features extend the service life of the mass and help maintain calibration integrity; paired with a protective case—recommended for storage—damage during transport or storage is kept to a minimum.

Practical integration into calibration workflows

Designed as a single reference mass for precision balances, the item supports straightforward inventory and traceability procedures thanks to its clear identification (SKU 307-15, GTIN 4045761002791). The robust construction and tight tolerance make it suitable for periodic verification schedules and inter-laboratory comparisons. For organisations seeking to simplify procurement and ensure consistent quality, Metav Werkzeuge provides centralised supply from Emmerich, where incoming goods are subject to a quality filter that supports reliable stock and delivery for workshop and laboratory applications.

For application-specific advice or to secure the KERN 307-15 through Metav Werkzeuge, contact our team in Emmerich at info@metav-werkzeuge.com or call +49 2822 7131930 for tailored ordering and delivery guidance

Technical data

  • Article number: 307-15
  • Manufacturer: KERN
  • GTIN: 4045761002791
  • SKU: 307-15

Facts

  • Nominal mass: 20 kg
  • Tolerance (OIML): 10 mg
  • OIML class: E1
  • Tariff number: 84239090
  • Country of origin: Germany

Special features

  • Material: Polished stainless steel
  • Shape: Knob form
  • Category: Single calibration weight
  • Recommended accessory: Protective case

FAQ

What does OIML class E1 mean for measurement uncertainty?
OIML class E1 indicates the highest level of nominal tolerance for calibration masses; the KERN 307-15 therefore provides a declared tolerance of 10 mg for a 20 kg mass and is suitable where minimal added uncertainty is required.

Is the 20 kg mass suitable for routine balance verification?
Yes, the 20 kg nominal mass is intended for verification and calibration of precision balances; the polished stainless-steel construction and knob form support regular use in laboratory and industrial calibration routines.

How should the weight be handled and stored to preserve accuracy?
Handle the mass using its knob and clean with lint-free cloths; store the reference mass in a protective case as recommended to avoid surface damage and contamination that could affect the calibrated value.

Does the product come with official identification for traceability?
The KERN 307-15 is identified by SKU 307-15 and GTIN 4045761002791, which supports traceability and documentation within calibration records and inventory systems.

Can the mass be used for accredited calibration services?
The E1 classification and documented tolerance make the unit appropriate as a reference mass within accredited calibration procedures, subject to the laboratory’s scope and accreditation requirements.


KERN · Germany

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20kg Wooden Case For Single Calibration Weights, Padded, For Classes E1–F1 - KERN

Take advantage of a padded wooden case that protects calibrated masses, designed specifically for 20 kg single weights in classes E1–F1, and compatible with common KERN single-weight models; order the case directly via Metav Werkzeuge or consult our specialists for suitability. Wooden case for single weights KERN 317-150-100 — padded, for 20 kg, E1–F1 The wooden case for single weights KERN 317-150-100 provides secure storage and organised transport for precision calibration weights used in workshops and calibration laboratories. Padded wooden case for single weights Compatible with KERN 307–329 series Designed for 20 kg nominal value, E1–F1 classes Robust wood construction for safe handling Secure protection that preserves calibration A padded interior and solid wood shell minimise mechanical stress and surface wear on precision masses, helping to maintain calibration between checks. The restrained design reduces movement during transport and prevents dents or scratches that can alter mass values, so measurement accuracy is preserved. This results in lower rework and fewer out-of-tolerance incidents for calibration and testing workflows. Clear compatibility for workshop logistics The case is specified for a 20 kg nominal mass and certified accuracy classes E1–F1, making it suitable where high-precision standards are required. It fits a range of single-weight formats from the KERN series, enabling spare-part standardisation and streamlined inventory management. The compact layout supports quick identification and retrieval of individual masses, simplifying daily processes in metrology rooms and service vehicles. Practical handling that supports efficiency Constructed from durable wood and lined with protective padding, the case balances robustness with manageable weight for handling and storage. Its form factor reduces the need for additional packaging and lowers the risk of accidental damage during movement, contributing to a smoother production and calibration routine. The organised interior helps technicians maintain orderly stock and reduces time spent searching for specific calibration masses. Materials and care for long service life Made from quality wood with a cushioned interior, the case requires little maintenance beyond keeping it dry and clean. Regular visual inspections of the padding and closures ensure ongoing protection for the masses housed inside. When used as intended, the case extends the usable life of precision weights and supports the operational reliability expected in industrial metrology environments. Select the KERN 317-150-100 wooden case for reliable protection of 20 kg calibration weights and contact Metav Werkzeuge in Emmerich for tailored advice or to arrange supply — info@metav-werkzeuge.com | +49 2822 7131930 | WhatsApp +49 170 2837271 Technical data Article number: 317-150-100 Manufacturer: KERN GTIN: 4045761003811 Material: Wood Origin: DE Facts Weight: 4.6 kg Suitable nominal value: 20 kg Accuracy classes: E1–F1 Tariff number: 84239090 Special features Padded interior Fits single weights KERN 307, 316, 317, 326, 327, 329 For button/compact design Case for single weights Made from wood FAQ Is this case suitable for 20 kg calibration weights? Yes. The KERN wooden case (SKU 317-150-100) is specified for a 20 kg nominal value and for accuracy classes E1–F1. Which KERN weight models fit the case? The case accepts single weights from the KERN series including models 307, 316, 317, 326, 327 and 329. How much does the case weigh and is it easy to handle? The case itself weighs 4.6 kg and is designed for practical handling while providing robust protection for the contained masses. What material is the case made from and how should it be cared for? Constructed from wood with a padded interior, the case should be kept dry and cleaned with a soft, dry cloth to maintain its protective properties. Can the case be used for transport between sites? The padded wooden case is suitable for protected transport when normal handling precautions are observed and the case is kept dry. KERN • Germany • Contact via Metav Werkzeuge: info@metav-werkzeuge.com / +49 2822 7131930

Regular price: €580.00
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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.
20 kg Aluminium-Protected Case For Single Calibration Weights Padded, E1–M3 - KERN

Secure storage and reliable transport for calibration weights are achieved by combining a robust aluminium shell, a padded interior and compatibility with E1–M3 accuracy classes for single, button/compact weights up to 20 kg. Order the case directly via Metav Werkzeuge or consult our specialists for application advice. KERN 317-150-600 Aluminium-protected case for single calibration weights, padded An Aluminium-protected case that offers padded, professional storage for single calibration weights used in calibration laboratories and workshop environments. Aluminium-protected outer shell Padded interior for secure transport Compatible with E1–M3 single weights up to 20 kg Lightweight 1.7 kg for easier handling Secure protection for delicate calibration weights The aluminium outer housing delivers a hard-wearing barrier against knocks and abrasion while keeping the internal environment stable during transport and storage. Inside, the padded lining cushions individual weights in the button/compact form, reducing the risk of surface damage and preserving metrological integrity. Designed for single weights up to 20 kg and matching E1–M3 classes, the case supports traceable handling of reference masses and helps maintain calibration status between uses. Practical benefits for metrology workflows Lightweight construction at 1.7 kg and a compact footprint make the case easy to move between benches and transport boxes, improving workflow efficiency in calibration labs and service rounds. The materials and layout are chosen to simplify inventory management for calibration sets: items remain organised and immediately available for precision tasks. The design reduces handling stress on certified masses, supporting repeatable measurement results and saving time in routine calibration procedures. Durable design tailored to professional use The combination of an aluminium shell and internal padding creates a durable storage solution that adapts to regular workshop and laboratory use. Compatibility with the knob/compact weight format streamlines integration with existing equipment and storage racks. By protecting weight surfaces from dents and contamination, the case contributes to longer service life of reference masses and helps preserve conformity with accuracy classes during transport and short-term storage. Contact Metav Werkzeuge today for expert guidance on the KERN 317-150-600 aluminium-protected case and to arrange delivery from our Emmerich warehouse Technical data Article number: 317-150-600 Manufacturer: KERN GTIN: 4045761136052 ECLASS: 21100103 HS code: 84239090 Facts Weight (case): 1.7 kg Suitable for weights up to: 20 kg Suitable for classes: E1–M3 Materials / Special features Material: Aluminium Interior: padded For weights: single (button/compact) Origin: CN Product group: Aluminium-protected cases FAQ Which weight classes are supported by the case? The case accommodates calibration weights in classes E1 to M3, suitable for use with certified single knob/compact masses. Is the case suitable for weights up to 20 kg? Yes, the KERN 317-150-600 aluminium-protected case is designed for single weights with nominal values up to 20 kg. What materials and features protect the weights inside the case? The combination of an aluminium outer shell and a padded interior protects weight surfaces from mechanical damage during transport and storage. How heavy is the protective case itself? The empty case has a mass of 1.7 kg, allowing straightforward handling within calibration workflows. Does the case fit knob/compact style reference masses? The interior layout is specified for button/compact single weights, ensuring secure placement and reduced movement during transport. KERN; Origin: CN

Regular price: €105.00
Product Quantity: Enter the desired amount or use the buttons to increase or decrease the quantity.