BS 427-2 62nd Edition, December 13, 1962
Method for Vickers Hardness Test Part 2: Verification of the Testing Machine
Includes all amendments and changes through Amendment 1, October 1982
Additional Comments: W/D S/S BY BS 427
Published By:British Standards Institution (BSI)
Sections 1 and 2: direct and indirect verification. Section 3: routine checks. Section 4: calibration of standard hardness blocks used for indirect verification.