Description
Test weight class M1, cast iron, black, 20000 g ± 500 mg is a robust calibration mass for verifying and adjusting laboratory and industrial balances. The nominal value is 20 000 g with a maximum permissible error of ± 500 mg, matching OIML accuracy class M1. Constructed from cast iron with a black surface finish, the weight is built for routine handling in weighing rooms and quality-control environments. It is manufactured in accordance with the recommendations of OIML R-111 for metrological characteristics and design. The piece is supplied without a protective case and without a certificate, making it suitable where an uncased class M1 working standard is required. This test weight from manufacturer Labbox belongs to the METRIA range and is offered as a single unit with a net weight of 20,000 kg. Typical uses include balance checks, comparative mass measurements and educational metrology setups that specify cast-iron M1 weights at the 20 kg level. The durable black finish supports everyday laboratory use while the defined tolerance enables reproducible calibration workflows aligned with recognised international recommendations.
This article is part of Calibration & test weights, in Balances & scales.
Key features
- Pack size: 1 pc
- Accuracy class: M1
- Material: cast iron, black
- Nominal mass: 20000 g ± 500 mg
- Standard: OIML R-111
- EAN: 8434868054202
- GTIN: 08434868054202
- Technical Information Sheet:
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Questions about Precision weights, made of black cast iron, class M1, 20000 g ± 500 mg
What is this article?
Precision weights, made of black cast iron, class M1, 20000 g ± 500 mg is the article on this page. Luminix Health distributes Labbox 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. Delivery across Europe, two to five days when in stock. 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
