Testing of asbestos and asbestos products; determining the organic matter content by oxidation with potassium permanganate in alkaline solution— 4 стр.
Testing of asbestos and asbestos products; content of organic substances, determination by means of alkaline oxidation with potassium permanganate— 3 стр.
Flanges and their joints - Quality assurance inspection and testing of gaskets in accordance with the series of standards EN 1514 and EN 12560; German version EN 14772:2005— 16 стр.