GOST 22904-1993 Reinforced concrete structures. Magnetic method for tne determination of the thickness of concrete protection layer and the location of the reinforcement
GOST 8.001-1980 State system of ensuring the unity of measurements. Rules for conducting the state tests of measuring means
GOST 8.326-1989 State system for ensuring the uniformity of measurements. Metrological certification measuring instruments
GOST 8.383-1980 State system for ensuring the uniformity of measurements. State tests of means for measurements. General statements
GOST 22904-1993 history
1993GOST 22904-1993 Reinforced concrete structures. Magnetic method for tne determination of the thickness of concrete protection layer and the location of the reinforcement