20 kg Test Weight Button Shape Polished Stainless Steel OIML E1 10 mg Tolerance - KERN
€4,280.00
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