ISO 1355:1989 Metallic materials -- Hardness test -- Calibration of standardized blocks to be used for Rockwell superficial hardness testing machines (scales 15N, 30N, 45N, 15T, 30T and 45T)
Withdrawn in: 1999-09-02
Withdrawn by: TC 164
Replaced by: ISO 6508-3:1999
Last updated on 2001-04-25
Copyright © ISO, 2001