ISO 674:1988 Metallic materials -- Hardness test -- Calibration of standardized blocks to be used for Rockwell hardness testing machines (scales A - B - C - D - E - F - G - H - K)
Withdrawn in: 1999-09-02
Withdrawn by: TC 164
Replaced by: ISO 6508-3:1999
Last updated on 2001-04-25
Copyright © ISO, 2001