GB/T 5686.7-1988 Methods for chemical analysis of silicomanganese alloy--The infrared absorption method for the determination of sulfur content (English Version)
This standard applies to the determination of sulfur content in manganese-silicon alloys. Measuring range: 0.005% to 0.045%.
GB/T 5686.7-1988 history
2022GB/T 5686.7-2022 Ferromanganese,ferromanganese-silicon,nitrogen-bearing ferromanganese and manganese metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization method
2008GB/T 5686.7-2008 Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal. Determination of sulfur content. Infrared absorption method and combustion-neutralization method
1988GB/T 5686.7-1988 Methods for chemical analysis of silicomanganese alloy--The infrared absorption method for the determination of sulfur content