GB/T 223.68-1997
ActiveMethods for chemical analysis of iron,steel and alloy--The potassium iodate titration method after combustion in the pipe furnace for the determination of sulfur content
钢铁及合金化学分析方法 管式炉内燃烧后碘酸钾滴定法测定硫含量
🔗 Related Standards / 同类标准
GB/T 4190-1984
Doped molybdenum bars
GB/T 4189-1984
Doped tungsten bars
GB/T 4188-1984
Molybdenum rods
GB/T 4187-1984
Tungsten rods
GB/T 4185-1984
Molybdenum-tungsten alloy bars
GB/T 222-1984
Method of sampling steel for determination of chemical composition and permissible variations for product analysis
GB/T 223.48-1985
Methods for chemical analysis of iron,steel and alloy--The semixylenol orange photometric method for the determination of bismuth content
GB/T 223.42-1985
Methods for chemical analysis of iron,steel and alloy--The anion-exchange separation-bromopyrogallol red photometric method for the determination of tantalumcontent