GOST 28956-91

Polyamides, polyamide fibres, fabrics, films. Determination of mass fraction of residual caprolactam and low-molecular compounds and their concentration of migration in water. Methods of liquid and gas-liquid chromatography

Enamels PF-223. Specifications

Physical optics. Terms, letter symbols and definitions of basic quantities

Milk and milk products. Determination of calcium, sodium, potassium and magnesium contents. Atomic absorption spectrometric method

Panel multilayer polycarbonate. Specifications

State system for ensuring the uniformity of measurements. State verification schedule for measuring instruments of standard lightning and switching impulse electrical voltage in the range from 1 to 1000 kV