Unused lubricating base oils and asphaltene free petroleum fractions. Determination of polycyclic aromatics by dimethyl sulphoxide extraction method and refractive index measuring
Document status: Active
Perfumery and cosmetics. Method for determination of ethyl alcohol by gaschromatography
Document status: Active
Coke chemical pyridine-base products. Gas chromatographic method for determination of component composition
Document status: Replaced by GOST 28812-2023
Petroleum and natural gas industries. Downhole equipment. Lock mandrels and landing nipples. General technical requirements
Document status: Active
