GOST 2604.8-77

Ryazhenka. Specifications.

Barite concentrate. General requirements for methods of analysis

Yttrium, lanthanum, ytterbium, lutetium and their oxides. Chemical-spectral method of determination of impurities of vanadium, tungsten, iron, cobalt, manganese, copper, molybdenum, nickel, niobium, lead, tantalum, titanium and chromium

Sterile hypodermic syringes for single use. Part 4. Syringes with re-use prevention feature

Statistical methods. Control charts for arithmetic average with warning limits

Leather. Methods of determination of certain azo colorants in dyed leathers. Part 1. Determination of certain aromatic amines derived from azo colorants