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Petroleum products and used oils. Determination of polychlorinated biphenyls (PCB) and related products. Part 3. Determination and quantification of polychlorinated terphenyls (PCT) and polychlorinated benzyl toluenes (PCBT) content by gas chromatography (GC) using an electron capture detector (ECD)

Document status: Active

Oil of Eucalyptus citriodora Hook. Specifications

Document status: Replaced by GOST ISO 3044-2022

Chalk. Method for determination of manganese mass fraction

Document status: Active

Reagents. Aluminium sulphate octadecahydrate. Specifications

Document status: Active

Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 5. Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and for a laboratory and on-line process application using three columns

Document status: Replaced by GOST 31371.5-2022

Lead concentrates. Determination of arsenic. Photometric and titrimetric methods

Document status: Active