Russian standards
Brown coals and hard coals. Methods for the determination of humic acids yields
Document status: Replaced by GOST 9517-94
Insulating oils. Detection of corrosive sulfur. Silver strip test
Document status: Active
Used petroleum products. General specification
Document status: Replaced by GOST 21046-2021
Reagents. Methods for determination of sulfates impurity
Document status: Active
Bauxite. Methods for determination of titanium dioxide content
Document status: Active