This document describes the method of determining the sulfur content in ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal, using the infrared absorption method and combustion-neutralization method. This document is applicable to the determination of sulfur content in ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal. For Method 1, the determination range (mass fraction) is. 0.003% ~ 0.120%; for Method 2, the determination range (mass fraction) is. 0.015% ~ 0.120%. Method 2 is not suitable for the determination of sulfur content in nitrogen-bearing ferromanganese.
Basic Data
Standard ID
GB/T 5686.7-2022 (GB/T5686.7-2022)
Description (Translated English)
Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal - Determination of sulfur content - Infrared absorption method and combustion-neutralization method
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
H11
Classification of International Standard
77.100
Word Count Estimation
18,160
Date of Issue
2022-12-30
Date of Implementation
2023-07-01
Older Standard (superseded by this standard)
GB/T 5686.7-2008
Issuing agency(ies)
State Administration for Market Regulation, China National Standardization Administration
