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DIN EN ISO 3650:1999
Geometrical product specifications (GPS) - Length standards - Gauge blocks (ISO 3650:1998); German version EN ISO 3650:1998
This document specifies the most important design and metrological characteristics of gauge blocks with a rectangular cross section and a nominal length ln ranging from 0,5 mm to 1000 mm. Limit deviations and tolerances are stated for the calibration grade K and for the grades 0,1 and 2 for various measuring purposes.
Deutsches Institut für Normung [din]