Description
E2 knob weight is an individual calibration weight for accurate checking of laboratory and industrial balances. It belongs to the E2 single-weight series covering 1 g to 50 kg and is made from special steel that is high-gloss polished, non-magnetisable and highly corrosion-resistant, with a stated density of 8,0 g/cm³. This unit has a net weight of 0,005 kg and is delivered as one piece; weights up to 20 g are packed in a plastic box, and pieces from 50 g upward are supplied in a wooden case. The refined steel surface and stable density make the weight suitable for metrology tasks that call for E2-class reference masses. Gross weight of the packaged item is 0,110 kg. From manufacturer Sartorius, the knob form factor allows secure handling during routine and intermediate calibration work in quality control, service laboratories and production environments. Origin is Germany (Baden-Württemberg). Select this single E2 knob weight when a corrosion-resistant, non-magnetisable mass standard in this accuracy class is required.
This article is part of Calibration & test weights, in Balances & scales.
Key features
- Pack size: 1 pc
- Density: 8,0 g/cm³
- Storage temperature: Room Temperature
- Product type: Knob weight
- Accuracy class: E2
- Material: Special steel, high-gloss polished, non-magnetisable
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Questions about Knob Weight 5 g, OIML E2
What is this article?
Knob Weight 5 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

