GOST 7619.9-81

State system for ensuring the uniformity of measurements. State verification schedule for instruments measuring surface flatness parameters of optical surfaces up to 200 mm

Brown coals, hard coals and anthracites. General requirements for methods of analysis

Reciprocating internal combustion engines. Safety requirements for engines, intended for use in potentially explosive atmospheres. Part 3. Group III engines for use in flammable dust atmospheres

Gas supply system. Main pipeline gas transportation. Environmental protection. Protection of the water environment. Water preparation. Technical requirements

Electronic-mechanical wrist and pocket watches. General specifications

Knowledge management. Implementing of knowledge management in small and medium-sized enterprises