Describes manufacture of the blocks, standardizing machine, standardizing procedure, number of indentations, uniformity of hardness, marking and test certificate. The calibration method specified is applicable only for indentations with diagonals less than or equal to 20 µm.
Số hiệu tiêu chuẩn
ISO 640-2
Tên tiêu chuẩn
Metallic materials; calibration of standardized blocks to be used for Vickers hardness testing machines; part 2: less than HV 0,2
Ngày phát hành
1993-07-00
Tiêu chuẩn tương đương
DIN EN ISO 6507-3 (1998-01), MOD * SN EN ISO 6507-3 (1998), MOD
Thay thế cho
ISO/DIS 640-2 (1989-09)
Thay thế bằng
ISO 6507-3 (1997-11)
Từ khóa
Blocks * Calibration * Control samples * Hardening test sheets * Hardness measurement * Hardness testers * Hardness tests * Marking * Metals * Test equipment * Testing * Tests * Vickers * Vickers hardness * Vickers hardness measurement