GOST 9012-1959 Metals. Method of Brinell hardness measurement
GOST 9717.2-1982 Copper. Method of spectral analysis of metal standart specimens with photographic registration of spectrum
GOST 9717.3-1982 Copper. Method of spectral analysis of oxide standart specimens
GOST R ISO 2859-1-2007 Statistical methods. Sampling procedures for inspection by attributes. Part 1. Sampling schemes indexed by acceptance quality limit for lot-by-lot inspection