2009BS EN ISO 20565-3:2009 Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials (alternative to the X-ray fluorescence method). Flame atomic absorption spectrometry (FAAS) and inductively coupled plasma atomic emission spectrometry (ICP-AES)
2009BS EN ISO 20565-1:2008 Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials (alternative to the X-ray fluorescence method).Part 1: Apparatus, reagents, dissolution and determination of gravimetric silica