This standard applies to ferrous and non-ferrous metals and alloys and establishes a method for measuring Rockwell indentation hardness.
GOST 22975-1978 Referenced Document
GOST 23677-1979 Hardness testing machines for metals. General technical requirements*， 1979-04-19 Update
GOST 2789-1973 Surface roughness. Parameters and characteristics
GOST 3722-1981 Rolling bearings. Balls. Technical requirements*， 1981-04-19 Update
GOST 8.001-1980 State system of ensuring the unity of measurements. Rules for conducting the state tests of measuring means*， 1980-04-19 Update
GOST 8.398-1980 State system for ensuring the uniformity of measurements. Hardness testing machines for metals and alloys. Methods and means of verification*， 1980-04-19 Update
GOST 9031-1975 Standardized blocks of hardness. Specifications*， 2024-04-19 Update
GOST 9377-1981 Diamond indenters and hammers for metal and alloys hardness testing machines. Specifications*， 2024-04-19 Update
GOST 22975-1978 history
1978GOST 22975-1978 Metals and alloys. Rockwell hardness test under low loads (using Super-Rockwell test)