Description
Knob weight F1, 5 kg is an individual precision mass piece intended for calibration and verification of laboratory balances and related weighing systems. Manufactured from polished special steel and specified as non-magnetizable, this F1 single weight supports reliable routine checks across the stated range from 1 g to 10 kg. The piece is delivered in a protective plastic box, with a net weight of 5,000 kg, making it practical for bench use, intermediate controls and quality-assurance procedures. From manufacturer Sartorius, the polished special-steel build is chosen for durability and ease of handling while limiting magnetic interaction with sensitive instruments. Knob-style geometry allows secure placement and removal during balance testing without unnecessary surface contact. Laboratories and metrology teams employ F1 individual weights for scheduled verification, method validation and day-to-day performance monitoring of analytical and precision scales. The plastic-box packaging protects the finished surface between uses and simplifies organised storage within existing weight sets. This knob weight is supplied as one piece, ready for integration into standard laboratory calibration workflows.
This article is part of Calibration & test weights, in Balances & scales.
Key features
- Pack size: 1 pc
- Storage temperature: Room Temperature
- Type: Knob weight
- Accuracy class: F1
- Material: Polished special steel
- Magnetic properties: Non-magnetizable
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Questions about Knob Weight 5 kg, OIML F1
What is this article?
Knob Weight 5 kg, OIML F1 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. 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.
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.

