GOST 25336-1982 Laboratory glassware and equipment. Basic parameters and dimensions*, 1982-04-19 Update
GOST 25794.3-1983 Reagents. Methods of preparation of standard volumetric solutions for precipitation titration, non-aqueous titration and other titrimetric methods*, 1983-04-19 Update
GOST 27025-1986 Reagents. General test requirements*, 1986-04-19 Update