DIN 863-1
DIN 863-1
Geometrical product specifications (GPS) - Micrometers - Part 1: Micrometers for external measurements; maximum permissible errorsstandard by Deutsches Institut Fur Normung E.V. (German National Standard), 02/01/2017
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 02/01/2017