NF B49-435-2*NF EN ISO 20565-2:2009 Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials (alternative to the X-ray fluorescence method) - Part 2 : wet chemical analysis.
2009NF B49-435-2*NF EN ISO 20565-2:2009 Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials (alternative to the X-ray fluorescence method) - Part 2 : wet chemical analysis.