1.1 This standard specifies a method for the calibration of standardized blocks to be used in Brinell hardness testing machines for the indirect verification of these machines as described in IS : 2281-1983*.
1.1.1 It applies to the calibration of standardized blocks.
IS 4132-1984 history
1985IS 4132-1984 Calibration method for standard blocks used in Brinell hardness testing machines