ISO 4547:1993被替代
Metallic materials - Hardness test - Calibration of standardized blocks to be used for Knoop hardness testing machines
出版：International Organization for Standardization
专家解读视频
Applies only for determining Knoop hardness in accordance with ISO 4545 giving indentations with long diagonals longer than or equal to 20 micrometres. Describes manufacture of the block, standardizing machine, standardizing procedure, number of indentations, uniformity of hardness, marking and test certificate.
KS B ISO 4547:2003 - Identical
GB/T 18449.3-2001 - Identical
NBN ISO 4547:1997 - Identical
