GOST ISO 21940-31-2016

High-efficiency filters and filter media for removing particles in air. Part 4. Test method for determining leakage of filter elements – scan method

Earth-moving machinery. Ореrator enclosure environment. Part 3. Pressurization test method

Secondary cells and batteries containing alkaline or other non-acid electrolytes. Safety requirements for portable sealed secondary cells, and for batteries made from them, for use in portable applications. Part 2. Lithium systems

Pipeline valves for nuclear stations. General specifications

Alarm intruder technical means. Classification. General technical requirements and test methods

State system for ensuring the uniformity of measurements. State primary standard and all-union verification schedule for means measuring radiation field parameters of antenna systems with operating dimension of apertures from 0,75 to 1,5 m at the frequency range from 2,5 to 42 GHz