GB/T 5686.5-2008 锰铁、锰硅合金、氮化锰铁和金属锰 碳含量的测定 红外线吸收法、气体容量法、重量法和库仑法 Ferromanganese ferromanganese-silicon nitrogen-bearing ferromanganese and manganese metal - Determination of carbon content - The infrared absorption method the gasometric method the gravimetric and the coulometric method
Ferromanganese ferromanganese-silicon nitrogen-bearing ferromanganese and manganese metal - Determination of carbon content - The infrared absorption method the gasometric method the gravimetric and the coulometric method