GOST 2149-75

Feeds, compound feeds. Determination of calcium, copper, iron, magnesium, manganese, of potassium, sodium and zinc by atomic absorption spectrometry method

All-wool and half-wool fabrics and yarn. Methods of chemical tests

Plastics. Preparation of test specimens by machining

Parts and assembly units of coupler and automatic coupler devices of railway rolling stock. Test methods

Cheese and processed cheese. Method of determination of citric acid and citrate content

Adjustable speed electrical power drive systems. Part 9-1. Ecodesign for power drive systems, motor starters, power electronics and their driven applications. General requirements for setting energy efficiency standards for power driven equipment using the extended product approach (EPA) and semi analytic model (SAM)