China National Standards

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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards;  We provide Chinese GB standards and English version GB standards  Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services.
  •  China "hemi" GB Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 6150.16-2009 Methods for chemical analysis of tungsten concentrates - Determination of iron content - The sulfosalicylic acid spectrophotometry
    钨精矿化学分析方法 铁量的测定 磺基水杨酸分光光度法
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    GB/T 4061-2009 Polycrystalline silicon-examination method-assessment of sandwiches on cross-section by chemical corrosion
    硅多晶断面夹层化学腐蚀检验方法
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    GB/T 24488-2009 Test method for electrochemical properties of magnesium alloys sacrificial anode
    镁合金牺牲阳极电化学性能测试方法
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    GB/T 24514-2009 Zinc and/or aluminium based coatings on steel - Determination of coating mass per unit area and chemical composition - Gravimetry, inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry
    钢表面锌基和(或)铝基镀层 单位面积镀层质量和化学成分测定 重量法、电感耦合等离子体原子发射光谱法和火焰原子吸收光谱法
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    GB/T 16484.9-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 9: Determination of nickel oxide content - Flame atomic absorption spectrometry
    氯化稀土、碳酸轻稀土化学分析方法 第9部分:氧化镍量的测定 火焰原子吸收光谱法
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    GB/T 16484.8-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 8: Determination of sodium oxide content - Flame atomic absorption spectrometry
    氯化稀土、碳酸轻稀土化学分析方法 第8部分:氧化钠量的测定 火焰原子吸收光谱法
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    GB/T 16484.7-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 7: Determination of magnesium oxide content - Flame atomic absorption spectrometry
    氯化稀土、碳酸轻稀土化学分析方法 第7部分:氧化镁量的测定 火焰原子吸收光谱法
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    GB/T 16484.6-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 6: Determination of calcium oxide content - Flame atomic absorption spectrometry
    氯化稀土、碳酸轻稀土化学分析方法 第6部分:氧化钙量的测定 火焰原子吸收光谱法
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    GB/T 16484.5-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 5: Determination of barium oxide content - Inductively coupled plasma atomic emission spectrometry
    氯化稀土、碳酸轻稀土化学分析方法 第5部分:氧化钡量的测定 电感耦合等离子体发射光谱法
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    GB/T 16484.4-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 4: Determination of thorium oxide content - ArsenazoⅢ spectrophotometry
    氯化稀土、碳酸轻稀土化学分析方法 第4部分:氧化钍量的测定 偶氮胂Ⅲ分光光度法
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    GB/T 16484.3-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 3: Determination of fifteen REO relative contents - Inductively coupled plasma atomic emission spectrometry
    氯化稀土、碳酸轻稀土化学分析方法 第3部分:15个稀土元素氧化物配分量的测定 电感耦合等离子体发射光谱法
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    GB/T 16484.23-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 23: Determination of acid insoluble substance in light rare earth carbonate - Gravimetry
    氯化稀土、碳酸轻稀土化学分析方法 第23部分:碳酸轻稀土中酸不溶物量的测定 重量法
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    GB/T 16484.22-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 22: Determination of zinc oxide content - Flame atomic absorption spectrometry
    氯化稀土、碳酸轻稀土化学分析方法 第22部分:氧化锌量的测定 火焰原子吸收光谱法
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    GB/T 16484.2-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 2: Determination of europium oxide content - Inductively coupled plasma mass spectrometry
    氯化稀土、碳酸轻稀土化学分析方法 第2部分:氧化铕量的测定 电感耦合等离子体质谱法
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    GB/T 16484.21-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 21: Determination of iron oxide content - 1,10-phenanthroline spectrophotometry
    氯化稀土、碳酸轻稀土化学分析方法 第21部分:氧化铁量的测定 1,10-二氮杂菲分光光度法
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    GB/T 16484.20-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 20: Determination of nickel oxide, manganese oxide, lead oxide, aluminum oxide, zinc oxide, thorium oxide content - Inductively coupled plasma mass spectrometry
    氯化稀土、碳酸轻稀土化学分析方法 第20部分:氧化镍、氧化锰、氧化铅、氧化铝、氧化锌、氧化钍量的测定 电感耦合等离子体质谱法
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    GB/T 16484.18-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 18: Determination of ignition loss content in light rare earth carbonate - Gravimetry
    氯化稀土、碳酸轻稀土化学分析方法 第18部分:碳酸轻稀土中灼减量的测定 重量法
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    GB/T 16484.16-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 16: Determination of water insoluble substance content in rare earth chloride - Gravimetry
    氯化稀土、碳酸轻稀土化学分析方法 第16部分:氯化稀土中水不溶物量的测定 重量法
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    GB/T 16484.15-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 15: Determination of chlorine content in light rare earth carbonate - Silver nitrate turbidimetry
    氯化稀土、碳酸轻稀土化学分析方法 第15部分:碳酸轻稀土中氯量的测定 硝酸银比浊法
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    GB/T 16484.14-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 14: Determination of phosphorus radical content - Phosphorus-antimonate-molybdenum blue spectrophotometry
    氯化稀土、碳酸轻稀土化学分析方法 第14部分:磷酸根量的测定 锑磷钼蓝分光光度法
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    GB/T 16484.13-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 13: Determination of ammonium chloride content - Distillation-titrimetry
    氯化稀土、碳酸轻稀土化学分析方法 第13部分:氯化铵量的测定 蒸馏-滴定法
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    GB/T 16484.12-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 12: Determination of sulfate radical
    氯化稀土、碳酸轻稀土化学分析方法 第12部分:硫酸根量的测定
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    GB/T 16484.1-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 1: Determination of cerium oxide content - Ammonium ferrous sulfate titrimetry
    氯化稀土、碳酸轻稀土化学分析方法 第1部分:氧化铈量的测定 硫酸亚铁铵滴定法
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    GB/T 16484.11-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 11: Determination of lead oxide content - Flame atomic absorption spectrometry
    氯化稀土、碳酸轻稀土化学分析方法 第11部分:氧化铅量的测定 火焰原子吸收光谱法
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    GB/T 16484.10-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 10: Determination of manganese oxide content - Flame atomic absorption spectrometry
    氯化稀土、碳酸轻稀土化学分析方法 第10部分:氧化锰量的测定 火焰原子吸收光谱法
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    GB/T 9649.29-2009 Terminology classification and code of geology and mineral resources - Part 29: Geochemistry exploration
    地质矿产术语分类代码 第29部分:地球化学勘查
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    GB/T 24327-2009 Pulps - Laboratory wet disintegration - Disintegration of chemical pulps
    纸浆 实验室湿解离 化学浆解离
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    GB/T 24228-2009 Chromium ores and concentrates - Methods of chemical analysis - General instruction
    铬矿石和铬精矿 化学分析方法 通则
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    GB/T 24196-2009 Corrosion of metals and alloys - Electrochemical test methods - Guidelines for conducting potentiostatic and potentiodynamic polarization measurements
    金属和合金的腐蚀 电化学试验方法 恒电位和动电位极化测量导则
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    GB/T 24170.1-2009 Surface antibacterial stainless steel - Part 1: Electrochemical method
    表面抗菌不锈钢 第1部分:电化学法
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    GB 15258-2009 General rules for preparation of precautionary label for chemicals
    化学品安全标签编写规定
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    GB 13690-2009 General rule for classification and hazard communication of chemicals
    化学品分类和危险性公示 通则
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    GB/T 24268-2009 Test methods for chemical analysis of silver-tin oxide electric contact material
    银氧化锡电触头材料化学分析方法
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    GB/T 2910.9-2009 Textiles - Quantitative chemical analysis - Part 9: Mixtures of acetate and triacetate fibres (method using benzyl alcohol)
    纺织品 定量化学分析 第9部分:醋酯纤维与三醋酯纤维混合物(苯甲醇法)
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    GB/T 2910.8-2009 Textiles - Quantitative chemical analysis - Part 8: Mixtures of acetate and triacetate fibres (method using acetone)
    纺织品 定量化学分析 第8部分:醋酯纤维与三醋酯纤维混合物(丙酮法)
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    GB/T 2910.7-2009 Textiles - Quantitative chemical analysis - Part 7: Mixtures of polyamide and certain other fibres (method using formic acid)
    纺织品 定量化学分析 第7部分:聚酰胺纤维与某些其他纤维混合物(甲酸法)
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    GB/T 2910.6-2009 Textiles - Quantitative chemical analysis - Part 6: Mixtures of viscose or certain types of cupro or modal or lyocell and cotton fibres (method using formic acid and zinc chloride)
    纺织品 定量化学分析 第6部分:粘胶纤维、某些铜氨纤维、莫代尔纤维或莱赛尔纤维与棉的混合物(甲酸/氯化锌法)
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    GB/T 2910.5-2009 Textiles - Quantitative chemical analysis - Part 5: Mixtures of viscose,cupro or modal and cotton fibres (method using sodium zincate)
    纺织品 定量化学分析 第5部分:粘胶纤维、铜氨纤维或莫代尔纤维与棉的混合物(锌酸钠法)
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    GB/T 2910.4-2009 Textiles - Quantitative chemical analysis - Part 4: Mixtures of certain protein and certain other fibers (method using hypochlorite)
    纺织品 定量化学分析 第4部分:某些蛋白质纤维与某些其他纤维的混合物(次氯酸盐法)
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    GB/T 2910.3-2009 Textiles - Quantitative chemical analysis - Part 3: Mixtures of acetate and certain other fibres (method using acetone)
    纺织品 定量化学分析 第3部分:醋酯纤维与某些其他纤维的混合物(丙酮法)
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    GB/T 2910.24-2009 Textiles - Quantitative chemical analysis - Part 24: Mixtures of polyester and some other fibers (method using phenol and tetrachloroethane)
    纺织品 定量化学分析 第24部分:聚酯纤维与某些其他纤维的混合物(苯酚/四氯乙烷法)
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    GB/T 2910.23-2009 Textiles - Quantitative chemical analysis - Part 23: Mixtures of polyethylene and polypropylene (method using cyclohexanone)
    纺织品 定量化学分析 第23部分:聚乙烯纤维与聚丙烯纤维的混合物(环己酮法)
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    GB/T 2910.22-2009 Textiles - Quantitative chemical analysis - Part 22: Mixtures of viscose or certain types of cupro or modal or lyocell and flax of ramie fibres (method using formic acid and zinc chloride)
    纺织品 定量化学分析 第22部分:粘胶纤维、某些铜氨纤维、莫代尔纤维或莱赛尔纤维与亚麻、苎麻的混合物(甲酸/氯化锌法)
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    GB/T 2910.2-2009 Textiles - Quantitative chemical analysis - Part 2: Ternary fibre mixture
    纺织品 定量化学分析 第2部分:三组分纤维混合物
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    GB/T 2910.21-2009 Textiles - Quantitative chemical analysis - Part 21: Mixtures of chlorofibers, certain modacrylics, certain elastanes, acetates, triacetates and certain other fibers (method using cyclohexanone)
    纺织品 定量化学分析 第21部分:含氯纤维、某些改性聚丙烯腈纤维、某些弹性纤维、醋酯纤维、三醋酯纤维与某些其他纤维的混合物(环己酮法)
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    GB/T 2910.20-2009 Textiles - Quantitative chemical analysis - Part 20: Mixtures of elastane and some other fibers (method of using dimethylacetamide)
    纺织品 定量化学分析 第20部分:聚氨酯弹性纤维与某些其他纤维的混合物(二甲基乙酰胺法)
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    GB/T 2910.19-2009 Textiles - Quantitative chemical analysis - Part 19: Mixtures of cellulose fibres and asbestos (method by heating)
    纺织品 定量化学分析 第19部分:纤维素纤维与石棉的混合物(加热法)
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    GB/T 2910.18-2009 Textiles - Quantitative chemical analysis - Part 18: Mixtures of silk and wool or hair (method using sulfuric acid)
    纺织品 定量化学分析 第18部分:蚕丝与羊毛或其他动物毛纤维的混合物(硫酸法)
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    GB/T 2910.17-2009 Textiles - Quantitative chemical analysis - Part 17: Mixtures of chlorofibers (homopolymers of vinyl chloride) and certain other fibers (method using sulfuric acid)
    纺织品 定量化学分析 第17部分:含氯纤维(氯乙烯均聚物)与某些其他纤维的混合物(硫酸法)
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    GB/T 2910.16-2009 Textiles - Quantitative chemical analysis - Part 16: Mixtures of polypropylene and certain other fibres (method using xylene)
    纺织品 定量化学分析 第16部分:聚丙烯纤维与某些其他纤维的混合物(二甲苯法)
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    GB/T 2910.15-2009 Textiles - Quantitative chemical analysis - Part 15: Mixtures of jute and certain animal fibres (method by determining nitrogen content)
    纺织品 定量化学分析 第15部分:黄麻与某些动物纤维的混合物(含氮量法)
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    GB/T 2910.14-2009 Textiles - Quantitative chemical analysis - Part 14: Mixtures of acetate and certain chlorofibres (method using acetic acid)
    纺织品 定量化学分析 第14部分:醋酯纤维与某些含氯纤维的混合物(冰乙酸法)
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    GB/T 2910.13-2009 Textiles - Quantitative chemical analysis - Part 13: Mixtures of certain chlorofibers and certain other fibers(method using carbon disulfide /acetone)
    纺织品 定量化学分析 第13部分:某些含氯纤维与某些其他纤维的混合物(二硫化碳/丙酮法)
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    GB/T 2910.12-2009 Textiles - Quantitative chemical analysis - Part 12: Mixtures of acrylic,certain modacrylic,certain chlorofibres,certain elastanes and certain other fibres (method using dimethylformamide )
    纺织品 定量化学分析 第12部分:聚丙烯腈纤维、某些改性聚丙烯腈纤维、某些含氯纤维或某些弹性纤维与某些其他纤维的混合物(二甲基甲酰胺法)
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    GB/T 2910.1-2009 Textiles - Quantitative chemical analysis - Part 1: General principles of testing
    纺织品 定量化学分析 第1部分:试验通则
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    GB/T 2910.11-2009 Textiles - Quantitative chemical analysis - Part 11: Mixtures of cellulose and polyester fibres (method using sulfuric acid)
    纺织品 定量化学分析 第11部分:纤维素纤维与聚酯纤维的混合物(硫酸法)
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    GB/T 2910.10-2009 Textiles - Quantitative chemical analysis - Part 10: Mixtures of triacetate or polylactide and certain other fibres (method using dichloromethane)
    纺织品 定量化学分析 第10部分:三醋酯纤维或聚乳酸纤维与某些其他纤维的混合物(二氯甲烷法)
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    GB/T 2910.101-2009 Textiles - Quantitative chemical analysis - Part 101: Mixtures of soybean protein composite fibre and certain other fibers
    纺织品 定量化学分析 第101部分:大豆蛋白复合纤维与某些其他纤维的混合物
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    GB/T 10629-2009 Textiles - Preparation of laboratory test samples and test specimens for chemical testing
    纺织品 用于化学试验的实验室样品和试样的准备
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    GB/T 23956-2009 Rules for preparation of instructions for use of chemical products
    化工产品使用说明书编写规定
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    GB/T 23955-2009 General principle for naming of chemicals
    化学品命名通则
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    GB/T 23952-2009 Inorganic chemicals for industrial use - General method for the determination of total nitrogen content - Distillation-acid-base titrations method
    无机化工产品中总氮含量测定的通用方法 蒸馏-酸碱滴定法
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    GB/T 23951-2009 Inorganic chemicals for industrial use - General method for the determination of residue after ignition
    无机化工产品中灼烧残渣测定通用方法
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    GB/T 23950-2009 Inorganic chemicals for industrial use - General method for determination of heavy metals
    无机化工产品中重金属测定通用方法
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    GB/T 23949-2009 Inorganic chemicals for industrial use - General method for the determination of dry residue after evaporation
    无机化工产品中蒸发残渣测定通用方法
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    GB/T 23948-2009 Inorganic chemicals for industrial use - General method for the determination of water insoluble matter
    无机化工产品中水不溶物测定通用方法
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    GB/T 23947.2-2009 Inorganic chemicals for industrial use - General method for the determination of arsenic content - Part 2: Gutzeit method
    无机化工产品中砷测定的通用方法 第2部分:砷斑法
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    GB/T 23947.1-2009 Inorganic chemicals for industrial use - General method for determination of arsenic - Part 1: Silver diethyldithiocarbamate photometric method
    无机化工产品中砷测定的通用方法 第1部分:二乙基二硫代氨基甲酸银光度法
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    GB/T 23946-2009 Inorganic chemicals for industrial use - General method for the determination of lead content - Atomic absorption spectrometry
    无机化工产品中铅含量测定通用方法 原子吸收光谱法
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    GB/T 23945-2009 Inorganic chemicals for industrial use - General method for the determination of chloride content - Visible turbidimetric method
    无机化工产品中氯化物含量测定的通用方法 目视比浊法
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    GB/T 23944-2009 Inorganic chemicals for products use - General method for the determination of aluminium - Chromazurol S-spectrophotometric method
    无机化工产品中铝测定的通用方法 铬天青S分光光度法
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    GB/T 23943-2009 Inorganic chemicals for industrial use - General method for the determination of chromium(Ⅵ) content - 1,5-diphenylcarbohydrazide spectrophotometric method
    无机化工产品中六价铬含量测定的通用方法 二苯碳酰二肼分光光度法
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    GB/T 23942-2009 Chemical reagent - General rules for inductively coupled plasma atomic emission spectrometry
    化学试剂 电感耦合等离子体原子发射光谱法通则
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    GB/T 23845-2009 Inorganic chemicals for industrial use - General method for the determination of bromide
    无机化工产品中溴化物测定通用方法
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    GB/T 23844-2009 Inorganic chemicals for industrial use - General method for the determination of sulphate - Visible turbidimetric method
    无机化工产品中硫酸盐测定通用方法 目视比浊法
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    GB/T 23843-2009 Inorganic chemical products - General method for the determination of total phosphorus(V)oride content
    无机化工产品中五氧化二磷含量测定的通用方法
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    GB/T 23842-2009 General method for the determination of silicon content of inorganic chemicals - Reduced molybdosilicate spectrophotometric method
    无机化工产品中硅含量测定通用方法 还原硅钼酸盐分光光度法
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    GB/T 23841-2009 Inorganic chemicals for industrial use - General method for the determinations of cadmium - Atomic absorption spectrometry
    无机化工产品中镉含量测定的通用方法 原子吸收分光光度法
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    GB/T 23840-2009 Inorganic chemical products - General rules for potentiometric titration
    无机化工产品 电位滴定法通则
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    GB/T 23834.6-2009 Chemical analysis method for stannous sulfate - Part 6: Determination of iron content - 1,10-phenanthroline spectrophotometry
    硫酸亚锡化学分析方法 第6部分:铁含量的测定 邻菲啰啉分光光度法
    China National Standards
    hemi

    English PDF
    GB/T 23834.5-2009 Chemical analysis method for stannous sulfate - Part 5: Determination of arsenic content - Silver diethyldithiocarbamate spectrophotometry
    硫酸亚锡化学分析方法 第5部分:砷含量的测定 二乙基二硫代氨基甲酸银分光光度法
    China National Standards
    hemi

    English PDF
    GB/T 23834.4-2009 Chemical analysis method for stannous sulfate - Part 4: Determination of lead and copper content - Flame atomic absorption spectrometry
    硫酸亚锡化学分析方法 第4部分:铅、铜含量的测定 火焰原子吸收光谱法
    China National Standards
    hemi

    English PDF
    GB/T 23834.3-2009 Chemical analysis method for stannous sulfate - Part 3: Determination of alkali metals sulfate and alkaline-earth metals sulfate - Gravimetric method
    硫酸亚锡化学分析方法 第3部分:碱金属和碱土金属硫酸盐总量的测定 重量法
    China National Standards
    hemi

    English PDF
    GB/T 23834.2-2009 Chemical analysis method for stannous sulfate - Part 2: Determination of insoluble substance in hydrochloric acid - Gravimetric method
    硫酸亚锡化学分析方法 第2部分:盐酸不溶物的测定 重量法
    China National Standards
    hemi

    English PDF
    GB/T 23834.1-2009 Chemical analysis method for stannous sulfate - Part 1: Determination of stannous sulfate content - Volumetric method of potassium dichromate
    硫酸亚锡化学分析方法 第1部分:硫酸亚锡含量的测定 重铬酸钾滴定法
    China National Standards
    hemi

    English PDF
    GB/T 23774-2009 Inorganic chemicas for industrial use - General method for the determination of whiteness
    无机化工产品白度测定的通用方法
    China National Standards
    hemi

    English PDF
    GB/T 23773-2009 Inorganic chemicals for industrial use - General method for determination of ammonium content - Nessler’s reagent colorimetric method
    无机化工产品中铵含量测定的通用方法 纳氏试剂比色法
    China National Standards
    hemi

    English PDF
    GB/T 23772-2009 Inorganic chemicals for industrial use - General method for the determination of total nitrogen content - Nessler’s reagent colorimetric method
    无机化工产品中总氮含量测定的通用方法 蒸馏-纳氏试剂比色法
    China National Standards
    hemi

    English PDF
    GB/T 23771-2009 Determination of bulk density for inorganic chemical products
    无机化工产品中堆积密度的测定
    China National Standards
    hemi

    English PDF
    GB/T 23770-2009 Liquid inorganic chemical products - General method for the measurement of colour
    液体无机化工产品色度测定通用方法
    China National Standards
    hemi

    English PDF
    GB/T 23769-2009 Inorganic chemical products - General method for the determination of pH values
    无机化工产品 水溶液中pH值测定通用方法
    China National Standards
    hemi

    English PDF
    GB/T 23768-2009 Inorganic chemicals for industrial use - General rules for flame atomic absorption spectrometry
    无机化工产品 火焰原子吸收光谱法通则
    China National Standards
    hemi

    English PDF
    GB/T 23767-2009 General method for measuring solid chemicals fire limits in gaseous oxidants
    固体化工产品在气态氧化剂中燃烧极限测定的通用方法
    China National Standards
    hemi

    English PDF
    GB/T 15249.5-2009 Methods for chemical analysis of crude gold - Part 5: Determination of mercury content - Cold atomic absorption spectrometry
    合质金化学分析方法 第5部分:汞量的测定 冷原子吸收光谱法
    China National Standards
    hemi

    English PDF
    GB/T 15249.4-2009 Methods for chemical analysis of crude gold - Part 4: Determination of lead content - EDTA titrimetric method
    合质金化学分析方法 第4部分:铅量的测定 EDTA滴定法
    China National Standards
    hemi

    English PDF
    GB/T 15249.3-2009 Methods for chemical analysis of crude gold - Part 3: Determination of copper content - Iodometric method
    合质金化学分析方法 第3部分:铜量的测定 碘量法
    China National Standards
    hemi

    English PDF
    GB/T 15249.2-2009 Methods for chemical analysis of crude gold - Part 2: Determination of silver content - Fire assay gravimetric and EDTA titrimetric methods
    合质金化学分析方法 第2部分:银量的测定 火试金重量法和EDTA滴定法
    China National Standards
    hemi

    English PDF
    GB/T 15249.1-2009 Methods for chemical analysis of crude gold - Part 1: Determination of gold content - Fire assay gravimetric method
    合质金化学分析方法 第1部分:金量的测定 火试金重量法
    China National Standards
    hemi

    English PDF
    GB/T 23594.2-2009 Chemical analysis methods of rare earth contents in samarium-europium-gadolinium concentrates - Part 2: Determination of fifteen rare earth oxide relative contents - Inductively coupled plasma emission spectrometry
    钐铕钆富集物化学分析方法 第2部分:十五个稀土元素氧化物配分量的测定 电感耦合等离子发射光谱法
    China National Standards
    hemi

    English PDF
    GB/T 23594.1-2009 Chemical analysis methods of rare earth contents in samarium-europium-gadolinium concentrates - Part 1: Determination of total rare earth oxide content - Gravimetry
    钐铕钆富集物化学分析方法 第1部分:稀土氧化物总量的测定 重量法
    China National Standards
    hemi

    English PDF

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