This standard covers the means of measuring hardness according to Rockwell and Super Rockwell and establis es the order of transmis ion of the hardness unit according to Rockwell and Super Rockwell in the range from 30 to 1 500 N (3 to 150 kgf) from the set of hardness standard measurements of 2nd category up to the work measurement means and also establis es the composition and main metrological characteris ics of the standard and work measurement means through which the hardness unit is transmitted according to Rockwell and Super Rockwell at the Metrology Research Institute (iNIMET) of the State Committee for Standardization (CE?).
NC 90-09-06-1984 history
1984NC 90-09-06-1984 Metrological Assurance. Hardness Measurement Means According to Rockwell and Super Rockwell National Transmission Scheme