Measuring equipment
Calibration of masses by users

To help the reader carry out a simple calibration, we propose to present that of a 20 kg gray cast-iron weight with a view to its classification as M ₁ ; for further details, the reader may refer to the box at the end of the article.

For weight classification, the OIML has established a relationship between the MPE of a weight and the uncertainty of that same weight (see table 6 ):

• the measurement uncertainty...