ISO 6507-2:2018 pdf download – Metallic materials -Vickershardness test— Part 2: verification and calibration of testing machines

ISO 6507-2:2018 pdf download – Metallic materials -Vickershardness test— Part 2: verification and calibration of testing machines. 5.5 VerIfication of the testing cycle The testing cycle shall be timed with equipment having a maximum expanded uncertainty of 1 s. The...