GOST 21458-75

Ruthenium. Method of volatile additions determination

State system of ensuring the uniformity of measurements. Positive displacement liquid meters. Methods and means for verification

Indoor air. Part 32. Investigation of buildings for the occurrence of pollutants

Glassfiber. Rovings. Manufacture of test specimens and determination of tensile strength of impregnated rovings

State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means measuring current intensities from 0,04 up to 300 A within the frequency range of 0,1 up to 300MHz

Leather. Physical and mechanical tests. Method of determination of thickness