Stainless steel calibration weights F2 – Complete series from 1 g to 20 kg
Class F2 stainless steel calibration weights are designed for the verification or calibration of class M1 weights, and in some cases class M2 weights, as well as for use with class II weighing instruments. Their level of accuracy meets the metrological requirements necessary in technical or scientific environments where increased accuracy is expected, without reaching the most stringent tolerances of class E.
From 1 g to 20 kg, each mass is manufactured in accordance with OIML R111. Weights from 1 g to 20 g are made in one piece, i.e. without an adjustment cavity. From 50 g upwards, the weights have a sealed adjustment cavity, which allows precise adjustment during calibration or recalibration. Each weight is identified to ensure traceability within a quality control or certification process.
The materials used meet specific requirements:stainless steel has a density of 8000 ± 100 kg/m³ and a low surface roughness (Rz < 5 µm, Ra < 1 µm), which limits particle adhesion. Permanent magnetisation is less than 80 µT, and magnetic susceptibility varies depending on mass. These physical properties allow use in controlled environments, limiting electromagnetic interactions and ensuring measurement stability over time.
These weights are designed for a wide range of applications: periodic checking of weighing instruments in laboratories or industry, internal calibration as part of a quality system, or external verification by an accredited body. They can be used in the pharmaceutical, chemical, food and educational sectors.
The series covers all standard calibration requirements, from very low masses to the most commonly used standard weights on analytical, semi-micro or industrial precision balances. To preserve their stability and prevent contamination, the weights are handled with clean gloves and stored in suitable containers (wooden boxes or plastic cases).
The entire series provides a consistent basis for any organisation that needs to perform or maintain reliable calibrations as part of a control plan, accreditation or quality monitoring.
