GOST 12697.13-90

Welding and allied processes. Classification of geometric imperfections in metallic materials. Part 2. Welding with pressure

Printed circuit boards. Basic parameters of structure

Combined animal feeding stuffs. Method for determination of total acidity

State system for ensuring the uniformity of measurements. Standard reference data. Aluminium, Mercury. Reflectivity and emittance in near and supercritical region

State system for ensuring the uniformity of measurements. State verification schedule for instruments measuring the radiant flux, irradiance, spectral irradiance and exposure in spectral range from 0,0004 to 0,400 mcm

Unified system for design documentation. Graphic identifications in schemes. Gaps, arresters and fuses