2006BS EN 14945:2006 Refractory products and materials. Spectrometric determination of chromium (VI) in chrome bearing refractories, before and after use
2006BS EN 14945:2005 Refractory products and materials - Spectrometric determination of chromium (VI) in chrome bearing refractories, before and after use
1998BS 1902-9.3:1998 Methods of testing refractory materials - Chemical analysis by instrumental methods - Determination of chromium (VI)