BS EN 725-1:1997-Advanced technical ceramics. Methods of test for ceramic powders - Part 1. Determination of impurities in alumina
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This part of EN 725 specifies methods for the determination of elements of sodium, potassium, iron, silicon, calcium and magnesium present as impurities in alumina using atomic absorption (AAS) or inductively coupled plasma (ICP) instruments. For each element present as impurities, the methods are applicable to the following ranges, calculated as oxides