Testing of ceramic materials; chemical analysis of refractories mainly consisting of alumina and silica, determination of total iron oxides estimated as ferric oxide— 2 стр.
Testing of ceramic materials; chemical analysis of silicon carbide used as raw material and as constituent in materials; decomposition with sodium carbonate and boric acid— 2 стр.
Testing of ceramic materials; chemical analysis of alumosilicates; determination of the iron and manganese content by atomic absorption spectrometry— 4 стр.