State system for ensuring the uniformity of measurements. State verification schedule for instruments measuring the content of components in gaseous media
Unified system of corrosion and ageing protection. Metals, alloys, metallic and non-metallic coatings. Permissible and impermissible contacts with metals and non-metals
Electromagnetic compatibility of technical equipment. Immunity of technical equipment intended for use in residential, commercial and light-industrial environments. Requirements and test methods
