Description
E2 knob weight is a precision single weight for calibration and verification of balances and scales in laboratory and production environments. It forms part of the E2 individual-weight range from 1 g to 10 kg and is manufactured from special steel that is polished and non-magnetizable, supporting stable reference mass and minimal magnetic influence during weighing. The compact knob design allows convenient handling when placing the weight on a pan or platform. Each piece is supplied in a plastic box that protects the polished surface between uses. This 0,020 kg unit is provided as a single piece and is suitable for routine metrology checks, quality-control routines and periodic performance testing of weighing instruments. The polished special-steel construction from manufacturer Sartorius offers a durable, corrosion-conscious mass standard for everyday laboratory practice. Laboratories and industrial sites that maintain calibrated weighing systems can incorporate the knob weight into their existing test-weight collections for consistent verification workflows.
This article is part of Calibration & test weights, in Balances & scales.
Key features
- Pack size: 1 pc
- Storage temperature: Room Temperature
- Accuracy class: E2
- Type: Knob weight
- Material: Special steel, polished
- Properties: Non-magnetizable
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Questions about Knob Weight 20 g, OIML E2
What is this article?
Knob Weight 20 g, OIML E2 is the article on this page. Luminix Health distributes Sartorius 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.

