GB/T 44031-2024 《Manganese ore, method of chemical analysis, general rule》 Related products

"GB/T 44031-2024 Manganese Ore, Methods of Chemical Analysis, General Rules" is a Chinese national standard, which stipulates the general principles and methods of chemical analysis of manganese ore. It is applicable to the formulation, revision and use of standards for chemical analysis methods of manganese ore. This standard is modified to adopt ISO 4297:1978 international standard, which covers the requirements of reagents, Analytical Balance, capacity instruments, measuring instruments, as well as the number of analytical samples, Repeatability limit and verification test. It is centrally managed by the National Pig Iron and Ferroalloy Standardization Technical Committee, and the competent department is the China Iron and Steel Industry Association.