DIN 50158-2:2008 Metallic materials - Hardness testing with portable measuring instruments operating with electrical penetration depth - Part 2: Verification and calibration of the testing devices
DIN 50158-1 Metallic materials - Hardness testing with portable measuring instruments operating with electrical penetration depth - Part 1: Test method*, 2008-07-01 Update
DIN EN ISO 376 Metallic materials - Calibration of force-proving instruments used for the verification of uniaxial testing machines (ISO 376:2011); German version EN ISO 376:2011 / Note: DIN EN ISO 376 (2005-02) remains valid alongside this standard until 2011-12-31.*, 2011-09-01 Update
DIN EN ISO 6507-3 Metallic materials - Vickers hardness test - Part 3: Calibration of reference blocks (ISO 6507-3:2018); German version EN ISO 6507-3:2018*, 2018-07-01 Update
DIN 50158-2:2008 history
2008DIN 50158-2:2008-04 Metallic materials - Hardness testing with portable measuring instruments operating with electrical penetration depth - Part 2: Verification and calibration of the testing devices
2008DIN 50158-2:2008 Metallic materials - Hardness testing with portable measuring instruments operating with electrical penetration depth - Part 2: Verification and calibration of the testing devices