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Water quality. Life cycle cost estimation for efficient operation of water supply and sanitation systems and facilities
Document status: Active
Unified system for design documentation. Conventional representation of gears, racks, worms and chain wheels
Document status: Active
Copper of high purity. Methods of photometric analysis
Document status: Replaced by GOST 27981.5-2015
United power system and isolated power systems. Renewable generation. Technical requirements for photovoltaic solar power plants
Document status: Active