Description
Test weight KERN 308-31 is a precision milligram reference weight of OIML class E1 intended for the calibration and verification of high-accuracy analytical and microbalances. With a nominal mass of 1 mg, the weight is manufactured as a fine wire from polished stainless steel, ensuring dimensional stability, corrosion resistance and minimal magnetic susceptibility. The E1 tolerance class meets the most stringent metrological requirements for primary laboratory standards, supporting traceable measurements in pharmaceutical, chemical and research environments. Its wire form allows secure handling with appropriate tweezers while presenting a low surface area that reduces the influence of air buoyancy and dust accumulation. Produced by manufacturer Kern, this single-piece test weight is supplied ready for use in controlled laboratory conditions and is suitable for routine balance checks, adjustment procedures and quality-assurance protocols. The polished stainless-steel finish facilitates cleaning and maintains long-term mass constancy when stored and handled according to good laboratory practice. Laboratories requiring reliable milligram-level references for balance performance monitoring will find this E1 wire weight an essential metrology accessory.
This article is part of Calibration & test weights, in Balances & scales.
Key features
- Pack size: 1 pc
- Weight class: E1
- Nominal weight: 1 mg
- Material: Stainless steel
- Design: Wire
- EAN: 4045761002937
- Technical Information Sheet:
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Questions about Test Weight KERN 308-31
What is this article?
Test Weight KERN 308-31 is the article on this page. Luminix Health distributes Kern for laboratory use. It sits in Calibration & test weights, inside Balances & scales, in Lab instruments.
A test weight is a mass of a stated class, used to check a balance. The class sets the tolerance. A weight that is dirty, or that has been handled with bare fingers, is no longer that class. The certificate ties the weight to a standard.
A balance compares a mass with a standard. An analytical balance reads to 0.1 mg or finer and needs a draft shield and a stable bench. A precision balance is coarser and faster. A platform scale takes a heavier load. The reading is only as good as the calibration chain back to the kilogram, which is why test weights and a certificate exist. A moisture analyser is a balance with a heater: it records the loss of mass as water leaves. The unit of mass is kept by the BIPM, compared across Europe by EURAMET, and accredited by BELAC. NIST publishes the same measurement foundations.
Which category should I open next?
The category is Balances & scales. The sub-category is Calibration & test weights. The catalogue is Lab instruments.
Shelves beside this one are Precision balances, Balance accessories, calibration & certificates, Bench, platform & industrial scales, Analytical balances and Moisture analysers.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.