2018DIN EN ISO 6507-3:2018-07 Metallic materials - Vickers hardness test - Part 3: Calibration of reference blocks (ISO 6507-3:2018); German version EN ISO 6507-3:2018
2018DIN EN ISO 6507-3:2018 Metallic materials - Vickers hardness test - Part 3: Calibration of reference blocks (ISO 6507-3:2018); German version EN ISO 6507-3:2018
2006DIN EN ISO 6507-3:2006 Metallic materials - Vickers hardness test - Part 3: Calibration of reference blocks (ISO 6507-3:2005); English version of DIN EN ISO 6507-3:2006-03
1998DIN EN ISO 6507-3:1998 Metallic materials hardness testing according to Vickers DIN Part 3: Calibration of hardness reference plates