Standard Code | Standard Title | Standard Class | Order |
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GB/T 12690.21-2024 |
Chemical analysis methods for non-rare earth impurities in rare earth metals and their oxides-Part 21: Determination of sulfate content in rare earth oxides-Barium sulfate turbidimetry {译} 稀土金属及其氧化物中非稀土杂质化学分析方法-第21部分:稀土氧化物中硫酸根含量的测定-硫酸钡比浊法 |
China National Standards Determination sulfate the |
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GB/T 40795.1-2021 |
Chemical analysis method of lanthanum-cerium metals and their compounds—Part 1:Determination of cerium content—Ammonium ferrous sulfate titration method 镧铈金属及其化合物化学分析方法 第1部分:铈量的测定 硫酸亚铁铵滴定法 |
China National Standards Determination sulfate the |
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GB/T 8704.5-2020 |
Ferrovanadium—Determination of vanadium content—The ammonium ferrous sulfate titrimetric method and the potentiometric titrimetric method 钒铁 钒含量的测定 硫酸亚铁铵滴定法和电位滴定法 |
China National Standards Determination sulfate the |
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GB/T 6730.9-2016 |
Iron ores—Determination of silicon content—The silicomolybdic blue spectrophotometric method reduced by ammonium ferrous sulfate 铁矿石 硅含量的测定 硫酸亚铁铵还原-硅钼蓝分光光度法 |
China National Standards Determination sulfate the |
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GB/T 4702.1-2016 |
Chromium metal—Determination of chromium content—The ammonium ferrous sulfate titrimetric method 金属铬 铬含量的测定 硫酸亚铁铵滴定法 |
China National Standards Determination sulfate the |
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GB/T 32696-2016 |
Photography—Determination of residual thiosulfate and other related chemicals in processed photographic materials—Methods using iodine-amylose,methylene blue and silver sulfide 摄影 已加工过的摄影材料上残留的硫代硫酸盐和其它相关的化学品的测定方法 碘直链淀粉、亚甲基蓝和硫化银法 |
China National Standards Determination sulfate the |
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GB/T 6730.32-2013 |
Iron ores - Determination of vanadium content - The ammonium ferrous sulfate titrimetric method 铁矿石 钒含量的测定 硫酸亚铁铵滴定法 |
China National Standards Determination sulfate the |
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GB/T 4701.1-2009 |
Ferrotitanium - Determination of titanium content - The ammonium ferric sulfate titration method 钛铁 钛含量的测定 硫酸铁铵滴定法 |
China National Standards Determination sulfate the |
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GB/T 24583.1-2009 |
Vanadium-Nitrogen alloy - Determination of vanadium content - The ammonium ferrous sulfate titration method 钒氮合金 钒含量的测定 硫酸亚铁铵滴定法 |
China National Standards Determination sulfate the |
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GB/T 18570.11-2009 |
Preparation of steel substrates before application of paints and related products - Tests for the assessment of surface cleanliness - Part 11: Field method for the turbidimetric determination of water-soluble sulfate 涂覆涂料前钢材表面处理 表面清洁度的评定试验 第11部分:水溶性硫酸盐的现场浊度测定法 |
China National Standards Determination sulfate the |
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GB/T 4699.2-2008 |
Ferrochromium and ferrosilicochromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method 铬铁和硅铬合金 铬含量的测定 过硫酸铵氧化滴定法和电位滴定法 |
China National Standards Determination sulfate the |
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GB/T 6150.14-2008 |
Methods for chemical analysis of tungsten concentrates - Determination of manganese content - The ammonium ferrous sulfate volumetric method and flame atomic absorption spectrometric method 钨精矿化学分析方法 锰量的测定 硫酸亚铁铵容量法和火焰原子吸收光谱法 |
China National Standards Determination sulfate the |
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GB/T 8704.5-2007 |
Ferrovanadium - Determination of vanadium content - The ammonium ferrous sulfate titrimetric method and the potentiometric titrimetric method 钒铁 钒含量的测定 硫酸亚铁铵滴定法和电位滴定法 |
China National Standards Determination sulfate the |
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GB/T 6730.9-2006 |
Iron ores - Determination of silicon contents - The silicomolybdic blue spectrophotometric method reduce by ammonium ferrous sulfate 铁矿石 硅含量的测定 硫酸亚铁铵还原-硅钼蓝分光光度法 |
China National Standards Determination sulfate the |
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GB/T 6730.23-2006 |
Iron ores - Determination of titanium content - The ferric ammonium sulfate titrimetric method 铁矿石 钛含量的测定 硫酸铁铵滴定法 |
China National Standards Determination sulfate the |
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GB/T 1819.3-2004 |
Methods for chemical analysis of tin concentrates--Determination of iron content--The cerium sulfate titrimetric method 锡精矿化学分析方法 铁量的测定 硫酸铈滴定法 |
China National Standards Determination sulfate the |
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GB/T 223.13-2000 |
Methods for chemical analysis of iron,steel and alloy--The ammonium ferrous sulfate titrationmethod for the determination of vanadium content 钢铁及合金化学分析方法 硫酸亚铁铵滴定法测定钒含量 |
China National Standards Determination sulfate the |
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GB/T 4702.1-1997 |
Methods for chemical analysis of chromium metal--The ammonium ferrous sulfate volumetric method for thedetermination of chromium content 金属铬化学分析方法 硫酸亚铁铵容量法测定铬量 |
China National Standards Determination sulfate the |
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GB/T 4698.11-1996 |
Sponge titanium,titanium and titanium alloys--Determination of chromium content in the absence of Vanadium--Ammonium ferrous sulfate titration method 海绵钛、钛及钛合金化学分析方法 硫酸亚铁铵滴定法测定铬量(不含钒) |
China National Standards Determination sulfate the |
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GB/T 4698.10-1996 |
Sponge titanium,titanium and titanium alloys--Determination of chromium content in thepresence of Vanadium--Ammonium ferrous sulfate titration method 海绵钛、钛及钛合金化学分析方法 硫酸亚铁铵滴定法测定铬量(含钒) |
China National Standards Determination sulfate the |
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GB/T 223.18-1994 |
Methods for chemical analysis of iron,steel and alloy--The sodium thiosulfate separation iodimetric method for the determination of copper content 钢铁及合金化学分析方法 硫代硫酸钠分离-碘量法测定铜量 |
China National Standards Determination sulfate the |
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GB/T 13580.6-1992 |
Determination of sulfate in the wet precipitation 大气降水中硫酸盐测定 |
China National Standards Determination sulfate the |
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GB/T 4333.7-1984 |
Methods for chemical analysis of ferrosilicon--The chromatographic separation-barium sulfate gravimetric method for the determination of sulfur content 硅铁化学分析方法 色层分离硫酸钡重量法测定硫量 |
China National Standards Determination sulfate the |
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GB/T 3653.5-1983 |
Methods for chemical analysis of ferroboron--The chromatographic separation-barium sulfate gravimetric method for the determination of sulfur content 硼铁化学分析方法 色层分离硫酸钡重量法测定硫量 |
China National Standards Determination sulfate the |
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