GOST 7565-1981 Iron, steel and alloys. Sampling for determination of chemical composition
GOST 8.315-1997 State system for enshuring the uniformity of measurements. Certified reference materials of composition and properties of substances and materials. Basic principles
GOST R 12.1.019-2009 Occupational safety standards system. Electrical safety. General requirements and nomenclature of kinds of protection
GOST R 52361-2005 Analytical control of the object. Terms and definitions