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Chrysotile asbestos. Method for determination of fibre average length, mass fractions of fibre of length less than 5 mm and 0,5 mm

Document status: Replaced by GOST 12871-2013

Flotation pyrite. Specifications

Document status: Replaced by GOST 444-2016

Ammonium sulphate technical. Determination of free acid content. Titrimetric method

Document status: Active

Petroleum liquids and liquefied petroleum gases. Measurements. Standard reference conditions

Document status: Active

Reagents. Method for determination of ammonium impurity

Document status: Active

Reagents. Potassium iodide. Specifications

Document status: Active