NBN A 11-403-1982
Metallurgical products. Calibration of reference blocks for Rockwell hardness testing machines (Grades B, C, N and T)

Standard No.

NBN A 11-403-1982

Release Date

1981

Published By

BE-NBN

Latest

NBN A 11-403-1982

NBN A 11-403-1982 history

• 1981 NBN A 11-403-1982 Metallurgical products. Calibration of reference blocks for Rockwell hardness testing machines (Grades B, C, N and T)