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Surface-active substances. Method of determination of free polyethylene glycol and an active substance in nonionic surface-active substances
Document status: Active
Ground feldsparic and quartzfeldsparic materials. Method for determination of mica content
Document status: Active
Vessels and apparatus. Norms and methods of strength calculation. Heat-exchangers
Document status: Replaced by GOST 34233.7-2017
Brown coals, hard coals, anthracite. Product quality index system
Document status: Active