China National Standards

China Chemical GB Standards English PDF List


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  •  China "Chemical" GB Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 20899.7-2007 Methods for Chemical analysis of gold ores - Part 7:Determination of iron contents
    金矿石化学分析方法 第7部分:铁量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 20899.6-2007 Methods for Chemical analysis of gold ores - Part 6: Determination of zinc contents
    金矿石化学分析方法 第6部分:锌量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 20899.5-2007 Methods for Chemical analysis of gold ores - Part 5:Determination of lead contents
    金矿石化学分析方法 第5部分:铅量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 20899.4-2007 Methods for Chemical analysis of gold ores - Part 4:Determination of copper contents
    金矿石化学分析方法 第4部分:铜量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 20899.3-2007 Methods for Chemical analysis of gold ores - Part 3:Determination of arsenic contents
    金矿石化学分析方法 第3部分:砷量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 20899.2-2007 Methods for Chemical analysis of gold ores - Part 2:Determination of silver contents
    金矿石化学分析方法 第2部分:银量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 20899.1-2007 Methods for Chemical analysis of gold ores - Part 1:Determination of gold contents
    金矿石化学分析方法 第1部分:金量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 20899.11-2007 Methods for Chemical analysis of gold ores - Part 11:Determination of arsenic and bismuth contents
    金矿石化学分析方法 第11部分:砷量和铋量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 20899.10-2007 Methods for Chemical analysis of gold ores - Part 10:Determination of antimony contents
    金矿石化学分析方法 第10部分:锑量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 12237-2007 Steel ball valves for petroleum, petroChemical and allied industries
    石油、石化及相关工业用的钢制球阀
    China National Standards
    Chemical

    English PDF
    GB/T 12235-2007 Steel globe valves and lift check valve for petroleum, petroChemical and allied industries
    石油、石化及相关工业用钢制截止阀和升降式止回阀
    China National Standards
    Chemical

    English PDF
    GB/T 5070-2007 Chemical analysis of refractories containing chrome
    含铬耐火材料化学分析方法
    China National Standards
    Chemical

    English PDF
    GB/T 5069-2007 Chemical analysis of magnesia-alumina refractories
    镁铝系耐火材料化学分析方法
    China National Standards
    Chemical

    English PDF
    GB/T 4984-2007 Chemical analysis of refractories containing zirconia
    含锆耐火材料化学分析方法
    China National Standards
    Chemical

    English PDF
    GB/T 20901-2007 Specification for equipping and managing of measuring instrument of energy in petroleum and petroChemical industry
    石油石化行业能源计量器具配备和管理要求
    China National Standards
    Chemical

    English PDF
    GB/T 328.16-2007 Test methods for building sheets for waterproofing - Part 16: Plastic and rubber sheets for waterproofing-exposure to liquid Chemicals including water
    建筑防水卷材试验方法 第16部分:高分子防水卷材 耐化学液体(包括水)
    China National Standards
    Chemical

    English PDF
    GB/T 20878-2007 Stainless and heat-resisting steels - Designation and Chemical composition
    不锈钢和耐热钢 牌号及化学成分
    China National Standards
    Chemical

    English PDF
    GB/T 4951-2007 Chemical analysis methods for sacrificial anodes of Zn-Al-Cd alloy
    锌-铝-镉合金牺牲阳极 化学分析方法
    China National Standards
    Chemical

    English PDF
    GB/T 4949-2007 Chemical analysis methods for sacrificial anodes of Al-Zn-In system alloy
    铝-锌-铟系合金牺牲阳极 化学分析方法
    China National Standards
    Chemical

    English PDF
    GB 1259-2007 Working Chemical - Potassium dichromate
    工作基准试剂 重铬酸钾
    China National Standards
    Chemical

    English PDF
    GB 1255-2007 Working Chemical - Sodium carbonate anhydrous
    工作基准试剂 无水碳酸钠
    China National Standards
    Chemical

    English PDF
    GB 10738-2007 Working Chemical - General rules for assay - weight titration
    工作基准试剂 含量测定通则 称量滴定法
    China National Standards
    Chemical

    English PDF
    GB 10737-2007 Working Chemical - General rules for assay - Weight titration(potentiometric method)
    工作基准试剂 含量测定通则 称量电位滴定法
    China National Standards
    Chemical

    English PDF
    GB/T 20749-2006 Method for determination of β-estradiol residues in bovine urine gas chromatography-negative-ion Chemical ionization mass spectrometry method
    牛尿中β-雌二醇残留量的测定 气相色谱-负化学电离质谱法
    China National Standards
    Chemical

    English PDF
    GB/T 19650-2006 Method for determination of 478 pesticides and related Chemicals residues in animal muscles - GC-MS method
    动物肌肉中478种农药及相关化学品残留量的测定 气相色谱-质谱法
    China National Standards
    Chemical

    English PDF
    GB/T 19649-2006 Method for determination of 475 pesticides and related Chemicals residues in grains - GC-MS method
    粮谷中475种农药及相关化学品残留量的测定 气相色谱-质谱法
    China National Standards
    Chemical

    English PDF
    GB/T 19648-2006 Method for determination of 500 pesticides and related Chemicals residues in fruits and vegetables - GC-MS method
    水果和蔬菜中500种农药及相关化学品残留量的测定 气相色谱-质谱法
    China National Standards
    Chemical

    English PDF
    GB/T 19426-2006 Method for the determination of 497 pesticides and related Chemicals residues in honey, fruit juice and wine -GC-MS method
    蜂蜜、果汁和果酒中497种农药及相关化学品残留量的测定 气相色谱-质谱法
    China National Standards
    Chemical

    English PDF
    GB/T 6284-2006 Chemical products for industrial use - General method for determination of water content - The loss of mass on drying method
    化工产品中水分测定的通用方法 干燥减量法
    China National Standards
    Chemical

    English PDF
    GB/T 3049-2006 Chemical products for industrial use - General method for determination of iron content - 1,10-Phenanthroline spectrophotometric method
    工业用化工产品 铁含量测定的通用方法 1,10-菲啰啉分光光度法
    China National Standards
    Chemical

    English PDF
    GB/T 20778-2006 Evaluation of biodegradability of water treatment Chemicals - Carbon dioxide evolution test
    水处理剂可生物降解性能评价方法 - CO2 生成量法
    China National Standards
    Chemical

    English PDF
    GB/T 11213.5-2006 Sodium hydroxide for Chemical fiber use - Determination of sulphate content
    化纤用氢氧化钠 硫酸盐含量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 11213.4-2006 Sodium hydroxide for Chemical fiber use - Determination of silicon content - Reduced molybdosilicate spectrophotometric method
    化纤用氢氧化钠 硅含量的测定 还原硅钼酸盐分光光度法
    China National Standards
    Chemical

    English PDF
    GB/T 9739-2006 Chemical reagent - General method for the determination of iron
    化学试剂 铁测定通用方法
    China National Standards
    Chemical

    English PDF
    GB/T 672-2006 Chemical reagent - Magnesium chloride hexahydrate
    化学试剂 六水合氯化镁(氯化镁)
    China National Standards
    Chemical

    English PDF
    GB/T 658-2006 Chemical reagent - Ammonium chloride
    化学试剂 氯化铵
    China National Standards
    Chemical

    English PDF
    GB/T 637-2006 Chemical reagent - Sodium thiosulfate pentahydrate
    化学试剂 五水合硫代硫酸钠(硫代硫酸钠)
    China National Standards
    Chemical

    English PDF
    GB/T 626-2006 Chemical reagent - Nitric acid
    化学试剂 硝酸
    China National Standards
    Chemical

    English PDF
    GB/T 622-2006 Chemical reagent - Hydrochloric acid
    化学试剂 盐酸
    China National Standards
    Chemical

    English PDF
    GB/T 618-2006 Chemical reagent - General method for the determination of crystallizing point
    化学试剂 结晶点测定通用方法
    China National Standards
    Chemical

    English PDF
    GB/T 617-2006 Chemical reagent - General method for the determination of melting range
    化学试剂 熔点范围测定通用方法
    China National Standards
    Chemical

    English PDF
    GB/T 616-2006 Chemical reagent - General method for the determination of boiling point
    化学试剂 沸点测定通用方法
    China National Standards
    Chemical

    English PDF
    GB/T 615-2006 Chemical reagent - General method for the determination of distillation range
    化学试剂 沸程测定通用方法
    China National Standards
    Chemical

    English PDF
    GB/T 614-2006 Chemical reagent - General method for the determination of refractive index
    化学试剂 折光率测定通用方法
    China National Standards
    Chemical

    English PDF
    GB/T 611-2006 Chemical reagent - General method for the determination of density
    化学试剂 密度测定通用方法
    China National Standards
    Chemical

    English PDF
    GB/T 609-2006 Chemical reagent - General method for the determination of total nitrogen
    化学试剂 总氮量测定通用方法
    China National Standards
    Chemical

    English PDF
    GB/T 605-2006 Chemical reagent - General method for the measurement of colour
    化学试剂 色度测定通用方法
    China National Standards
    Chemical

    English PDF
    GB/T 683-2006 Chemical reagent - Methanol
    化学试剂 甲醇
    China National Standards
    Chemical

    English PDF
    GB/T 6900-2006 Chemical analysis of alumina-silica refractories
    铝硅系耐火材料化学分析方法
    China National Standards
    Chemical

    English PDF
    GB/T 8647.9-2006 The methods for Chemical analysis of nickel - Determination of carbon content - Infra-red absorption method after high frequency induction furnace combustion
    镍化学分析方法 碳量的测定 高频感应炉燃烧红外吸收法
    China National Standards
    Chemical

    English PDF
    GB/T 8647.8-2006 The methods for Chemical analysis of nickel - Determination of sulphur content - Infra-red absorption method after high frequency induction furnace combustion
    镍化学分析方法 硫量的测定 高频感应炉燃烧红外吸收法
    China National Standards
    Chemical

    English PDF
    GB/T 8647.7-2006 The methods for Chemical analysis of nickel - Determination of arsenic,antimony,bismuth,tin and lead contents - Electrothermal atomic absorption spectrometric method
    镍化学分析方法 砷、锑、铋、锡、铅量的测定 电热原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 8647.6-2006 The methods for Chemical analysis of nickel - Determination of cadmium,cobalt,copper,manganese,lead and zinc contents - Flame atomic absorption spectrometric method
    镍化学分析方法 镉、钴、铜、锰、铅、锌量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 8647.5-2006 The methods for Chemical analysis of nickel - Determination of magnesium content - Flame atomic absorption spectrometric method
    镍化学分析方法 镁量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 8647.4-2006 The methods for Chemical analysis of nickel - Determination of phosphorous content - Molybdenum blue spectrophotometric method
    镍化学分析方法 磷量的测定 钼蓝分光光度法
    China National Standards
    Chemical

    English PDF
    GB/T 8647.3-2006 The methods for Chemical analysis of nickel - Determination of silicon content - Molybdenum blue spectrophotometric method
    镍化学分析方法 硅量的测定 钼蓝分光光度法
    China National Standards
    Chemical

    English PDF
    GB/T 8647.2-2006 The methods for Chemical analysis of nickel - Determination of aluminium content - Electrothermal atomic absorption spectrometric method
    镍化学分析方法 铝量的测定 电热原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 8647.1-2006 The methods for Chemical analysis of nickel - Determination of iron content - Sulfosalicylic acid spectrophotometric method
    镍化学分析方法 铁量的测定 磺基水杨酸分光光度法
    China National Standards
    Chemical

    English PDF
    GB/T 8647.10-2006 The methods for Chemical analysis of nickel - Determination of arsenic,cadmium,lead,zinc,antimony,bismuth,tin,cobalt,copper,manganese,magnesium,silicon,aluminium,iron contents - Atomic emission spectrometric method
    镍化学分析方法 砷、镉、铅、锌、锑、铋、锡、钴、铜、锰、镁、硅、铝、铁量的测定 发射光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 11067.6-2006 Methods for Chemical analysis of silver - Determination of iron contents - Flame atomic absorption spectrometric method
    银化学分析方法 铁量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 11067.5-2006 Methods for Chemical analysis of silver - Determination of lead and bismuth contents - Flame atomic absorption spectrometric method
    银化学分析方法 铅和铋量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 11067.4-2006 Methods for Chemical analysis of silver - Determination of antimony content - The inductively coupled plasma atomic emission spectrometric method
    银化学分析方法 锑量的测定 电感耦合等离子体原子发射光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 11067.3-2006 Methods for Chemical analysis of silver - Determination of selenium and tellurium content - Inductively coupled plasma atomic emission spectrometric method
    银化学分析方法 硒和碲量的测定 电感耦合等离子体原子发射光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 11067.2-2006 Methods for Chemical analysis of silver - Determination of copper contents - Flame atomic absorption spectrometric method
    银化学分析方法 铜量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 11067.1-2006 Methods for Chemical analysis of silver - Determination of silver content - Silver chloride precipitation-Flame atomic absorption spectrometric method
    银化学分析方法 银量的测定 氯化银沉淀-火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 20621-2006 Generator of complex chlorine dioxide by Chemical reaction
    化学法复合二氧化氯发生器
    China National Standards
    Chemical

    English PDF
    GB/T 9721-2006 Chemical reagent - General rules for the molecular absorption spectrophotometry (ultraviolet and visible)
    化学试剂 分子吸收分光光度法通则(紫外和可见光部分)
    China National Standards
    Chemical

    English PDF
    GB/T 673-2006 Chemical reagent - Arsenic trioxide
    化学试剂 三氧化二砷
    China National Standards
    Chemical

    English PDF
    GB/T 1266-2006 Chemical reagent - Sodium chloride
    化学试剂 氯化钠
    China National Standards
    Chemical

    English PDF
    GB/T 1263-2006 Chemical reagent - Disodium hydrogen phosphate dodecahydrate
    化学试剂 十二水合磷酸氢二钠(磷酸氢二钠)
    China National Standards
    Chemical

    English PDF
    GB/T 20443-2006 Method for the determination of diethylstilbestrol in chicken tissue by high performance liquid chromatography with electroChemical detection
    鸡组织中已烯雌酚残留的测定 高效液相色谱-电化学检测器法
    China National Standards
    Chemical

    English PDF
    GB/T 8152.9-2006 Methods for Chemical analysis of lead concentrates―Determination of magnesium oxide content―Flame atomic absorption spectrometric method
    铅精矿化学分析方法 氧化镁的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 8152.7-2006 Methods for Chemical analysis of lead concentrates―Determination of copper content―Flame atomic absorption spectrometric method
    铅精矿化学分析方法 铜量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 8152.5-2006 Methods for Chemical analysis of lead concentrates―Determination of arsenic content―Atomic fluorescence spectrometer method
    铅精矿化学分析方法 砷量的测定 原子荧光光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 8152.4-2006 Methods for Chemical analysis of lead concentrates―Determination of zinc content―EDTA titration method
    铅精矿化学分析方法 锌量的测定 EDTA滴定法
    China National Standards
    Chemical

    English PDF
    GB/T 8152.3-2006 Methods for Chemical analysis of lead concentrates―Determination of aluminium(III)oxide content―Chromazurol S spectrophotometric method
    铅精矿化学分析方法 三氧化二铝量的测定 铬天青S分光光度法
    China National Standards
    Chemical

    English PDF
    GB/T 8152.2-2006 Methods for Chemical analysis of lead concentrates―Determination of lead content―Back titration of EDTA after precipitation of lead sulfate
    铅精矿化学分析方法 铅量的测定 硫酸铅沉淀―EDTA返滴定法
    China National Standards
    Chemical

    English PDF
    GB/T 8152.12-2006 Methods for Chemical analysis of lead concentrates―Determination of cadmium content―Flame atomic absorption spectrometric method
    铅精矿化学分析方法 镉量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 8152.1-2006 Methods for Chemical analysis of lead concentrates―Determination of lead content―EDTA titration method after acid digestion
    铅精矿化学分析方法 铅量的测定 酸溶解-EDTA滴定法
    China National Standards
    Chemical

    English PDF
    GB/T 8152.11-2006 Methods for Chemical analysis of lead concentrates―Determination of mercury content―Atomic fluorescence spectrometer method
    铅精矿化学分析方法 汞量的测定 原子荧光光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 8152.10-2006 Methods for Chemical analysis of lead concentrates―Determination of silver and gold content―Fire assay and flame atomic absorption spectrometric method using scorification or cupellation
    铅精矿化学分析方法 银量和金量的测定 铅析或灰吹火试金和火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 1819.17-2006 Methods for Chemical analysis of tin concentrates―Determination of mercury content―The cold vapor atomic absorption spectrometric method
    锡精矿化学分析方法 汞量的测定 冷原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 1819.16-2006 Methods for Chemical analysis of tin concentrates―Determination of silver content―Flame atomic absoption spectrometric method
    锡精矿化学分析方法 银量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 1819.15-2006 Methods for Chemical analysis of tin concentrates―Determination of fluorine content―The ion-selective electrode method
    锡精矿化学分析方法 氟量的测定 离子选择电极法
    China National Standards
    Chemical

    English PDF
    GB/T 1819.14-2006 Methods for Chemical analysis of tin concentrates―Determination of copper content―Flame atomic absorption spectrometric method
    锡精矿化学分析方法 铜量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB 20300-2006 Safety specifications for road transportation vehicle of explosive substance and Chemical toxic substance
    道路运输爆炸品和剧毒化学品车辆安全技术条件
    China National Standards
    Chemical

    English PDF
    GB/T 20260-2006 Chemical analysis methods for marine sediment
    海底沉积物化学分析方法
    China National Standards
    Chemical

    English PDF
    GB/T 20259-2006 Chemical analysis methods for marine polymetallic nodules
    大洋多金属结核化学分析方法
    China National Standards
    Chemical

    English PDF
    GB/T 20245.1-2006 Expression of performance of electroChemical analyzers Part1: General
    电化学分析器性能表示 第1部分:总则
    China National Standards
    Chemical

    English PDF
    GB/T 20255.5-2006 Methods for Chemical analysis of hardmetals - Determination of chromium content - Flame atomic absorption spectrometric method
    硬质合金化学分析方法 铬量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 20255.4-2006 Methods for Chemical analysis of hardmetals - Determination of cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium contents - Flame atomic absorption spectrometric method
    硬质合金化学分析方法 钴、铁、锰、钼、镍、钛和钒量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 20255.3-2006 Methods for Chemical analysis of hardmetals - Determination of molybdenum, titanium and vanadium contents - Flame atomic absorption spectrometric method
    硬质合金化学分析方法 钼、钛和钒量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 20255.2-2006 Methods for Chemical analysis of hardmetals - Determination of cobalt, iron, manganese and nickel contents - Flame atomic absorption spectrometric method
    硬质合金化学分析方法 钴、铁、锰和镍量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 20255.1-2006 Methods for Chemical analysis of hardmetals - Determination of calcium, potassium, magnesium and sodium contents - Flame atomic absorption spectrometric method
    硬质合金化学分析方法 钙、钾、镁和钠量的测定 火焰原子吸收光谱法
    China National Standards
    Chemical

    English PDF
    GB/T 18115.9-2006 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Dysprosium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, holmium, erbium, thulium, ytterbium, lutetium and yt
    稀土金属及其氧化物中稀土杂质化学分析方法 镝中镧、铈、镨、钕、钐、铕、钆、铽、钬、铒、铥、镱、镥和钇量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 18115.8-2006 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Terbium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yt
    稀土金属及其氧化物中稀土杂质化学分析方法 铽中镧、铈、镨、钕、钐、铕、钆、镝、钬、铒、铥、镱、镥和钇量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 18115.7-2006 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Gadolinium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yt
    稀土金属及其氧化物中稀土杂质化学分析方法 钆中镧、铈、镨、钕、钐、铕、铽、镝、钬、铒、铥、镱、镥和钇量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 18115.6-2006 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Europium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yt
    稀土金属及其氧化物中稀土杂质化学分析方法 铕中镧、铈、镨、钕、钐、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 18115.5-2006 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Samarium-Determination of lanthanum, cerium, praseodymium, neodymium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yt
    稀土金属及其氧化物中稀土杂质化学分析方法 钐中镧、铈、镨、钕、铕、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定
    China National Standards
    Chemical

    English PDF
    GB/T 18115.4-2006 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Neodymium-Determination of lanthanum, cerium, praseodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yt
    稀土金属及其氧化物中稀土杂质化学分析方法 钕中镧、铈、镨、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定
    China National Standards
    Chemical

    English PDF

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