
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)
出版:International Organization for Standardization

专家解读视频
19891970
BS EN 10109-3 : 1996 - Similar to
BS 4175(1989) : 1989 - Similar to
DIN 51303 : 1995 - Similar to
DIN 51303 : 1995 - Similar to
BS 4175(1989) : 1989 - Similar to
NFA 03 506 : 1986 - Similar to
NFA 03 506:1986 - Similar
AS 2025-1991 - Equivalent
BS 4175-2:1970 - Equivalent
BS EN 10109-3:1996 - Similar
DIN 51303 (1995-01) - Similar
NFA 03 027:1989 - Equivalent
BS 4175:1989 - Similar