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Vessels and apparatus. Norms and methods of strength calculation. Reinforcement of openings in shells and heads under internal and external pressure. Strength calculation of shells and heads under external static loads on the nozzle
Document status: Active
Insulating liquids. Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
Document status: Active
Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 3. Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns
Document status: Replaced by GOST 31371.3-2025