Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 12690.1-2022 |
Chemical analysis methods for non-rare earth impurities in rare earth metals and their oxides—Part 1: Determination of carbon and sulfur content—High frequency-infrared absorption method {译} 稀土金属及其氧化物中非稀土杂质化学分析方法 第1部分:碳、硫量的测定 高频-红外吸收法 |
China National Standards content—High |
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GB/T 10574.12-2017 |
Methods for chemical analysis of tin-lead solders—Part 12:Determination of sulfur content—High frequency combustion with infrared absorption method 锡铅焊料化学分析方法 第12部分:硫量的测定 高频燃烧红外吸收光谱法 |
China National Standards content—High |
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GB/T 1819.10-2017 |
Methods for chemical analysis of tin concentrates—Part 10: Determination of sulfur content—High frequency combustion with infrared absorption method and potassium iodate titrimetric method 锡精矿化学分析方法 第10部分:硫量的测定 高频感应炉燃烧红外吸收法和碘酸钾滴定法 |
China National Standards content—High |
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