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Butt welded steel flanges of vessels and apparatus. Design and dimensions
Document status: Replaced by GOST 28759.3-2022
Turf and products of its processing. Methods for the determination of ash content
Document status: Replaced by GOST 11306-2013
Steel enamelled collectors. Types, basic parameters and dimensions
Document status: Active
Niobium pentoxide. Method for the determination of potassium and sodium content
Document status: Active
Petroleum Products. lubricating oils and additives. Determination of sulphated ash
Document status: Active