中華人民共和國國家標準(中國大陸GB標準)英文版 |
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GB標準是中華人民共和國國家標準,也叫GB國標,是中國大陸強制執行的國家標準,所有中國大陸境內銷售的商品及提供服務都必須符合GB國家標準的要求,包括進口商品及服務; 本網站提供GB國家標準的查詢檢索,英文版翻譯,GB標準產品檢測檢驗及合規性分析服務; |
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GB/T 11848.3-2025 铀矿石浓缩物分析方法 - 第3部分:可萃有机物的测定 - 重量法(中英文版) Methods for the Analysis of Uranium Ore Concentrates - Part 3: Determination of Extractable Organic Matter - Gravimetric Method |
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GB/T 11848.2-2025 铀矿石浓缩物分析方法 - 第2部分:硝酸不溶铀的测定 - 分光光度法(中英文版) Methods for the Analysis of Uranium Ore Concentrates - Part 2: Determination of Nitrate-Insoluble Uranium - Spectrophotometric Method |
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GB/T 10267.5-2025 金属钙分析方法 - 第5部分:蒸馏-奈斯勒试剂光度法测定氮(中英文版) Methods for the Analysis of Calcium in Metals - Part 5: Determination of Nitrogen by Distillation-Nessler Reagent Spectrophotometry |
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GB/T 10267.4-2025 金属钙分析方法 - 第4部分:8-羟基喹啉-三氯甲烷萃取分光光度法测定铝(中英文版) Methods for Analysis of Calcium in Metals - Part 4: Determination of Aluminum by 8-Hydroxyquinoline-Trichloromethane Extraction Spectrophotometry |
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GB/T 11843-2025 二氧化铀粉末和芯块中氮的测定 - 分光光度法(中英文版) Determination of Nitrogen in Uranium Dioxide Powder and Pellets - Spectrophotometric Method |
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GB/T 17260-2025 亚麻纤维细度的测定 - 气流法(中英文版) Determination of Fineness of Flax Fibers - Air Flow Method |
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GB/T 21789-2025 闪点的测定 - 阿贝尔闭口杯法(中英文版) Determination of Flash Point - Abel Closed Cup Method |
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GB/T 21782.3-2025 粉末涂料 - 第3部分:液体置换比重瓶法测定密度(中英文版) Powder Coatings - Part 3: Determination of Density by Liquid Displacement Pycnometer Method |
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GB/T 21782.2-2025 粉末涂料 - 第2部分:气体比较比重仪法测定密度(仲裁法)(中英文版) Powder Coatings - Part 2: Determination of Density by Gas-Comparative Specific Gravity Method (Arbitration Method) |
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GB/T 21790-2025 闪点的测定 - 用小型闭杯试验仪测定闪燃非闪燃和闪点的方法(中英文版) Determination of Flash Point - Methods for Determining Flash Ignition, Non-Flash Ignition, and Flash Point Using a Small Closed Cup Tester |
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GB/T 5542-2025 染料 - 大颗粒的测定 - 单层滤布过滤法(中英文版) Dyes - Determination of Large Particles - Single-Layer Filter Cloth Filtration Method |
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GB/T 31126.1-2025 纺织品 - 全氟及多氟化合物的测定 - 第1部分:液相色谱-串联质谱法(中英文版) Textiles - Determination of Perfluoroalkyl and Polyfluoroalkyl Substances - Part 1: Liquid Chromatography-Tandem Mass Spectrometry |
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GB/T 46400-2025 纺织品 - 孔径特征的测定 - 气液置换法(中英文版) Textiles - Determination of Pore Characteristics - Gas-Liquid Exchange Method |
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GB/T 22805.3-2025 纸和纸板 - 耐脂度的测定 - 第3部分:松节油法(中英文版) Paper and Paperboard - Determination of Greaseproofness - Part 3: Turpentine Method |
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GB/T 46294-2025 粮油检验 - 粉类粮食动物源性杂质测定 - 酸水解法(中英文版) Grain and Oil Inspection - Determination of Animal-Derived Impurities in Flour - Acid Hydrolysis Method |
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GB/T 46257-2025 化妆品中乙酰胆碱及其盐类的测定-液相色谱–串联质谱法(中英文版) Determination of Acetylcholine and Its Salts in Cosmetics - Liquid Chromatography-Tandem Mass Spectrometry |
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GB/T 46231.1-2025 塑料-聚氨酯原材料通用测试方法-第1部分:近红外光谱法测定多元醇羟值(中英文版) Plastics - General Test Methods for Polyurethane Raw Materials - Part 1: Determination of Hydroxyl Value of Polyols by Near-Infrared Spectroscopy |
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GB/T 46258-2025 化妆品中乌洛托品的测定-液相色谱-串联质谱法(中英文版) Determination of Urotropine in Cosmetics - Liquid Chromatography-Tandem Mass Spectrometry |
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GB/T 46183-2025 鞋类-化学试验方法-含氯苯酚的测定-气相色谱-串联质谱法(中英文版) Footwear - Chemical Test Methods - Determination of Chlorophenols - Gas Chromatography-Tandem Mass Spectrometry |
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GB/T 28125.1-2025 气体分析 - 空分工艺中危险物质含量的测定 - 第1部分:甲烷、乙炔、二氧化碳、总烃含量的测定(中英文版) Gas Analysis - Determination of Hazardous Substances in Air Separation Processes - Part 1: Determination of Methane, Acetylene, Carbon Dioxide, and Total Hydrocarbons |
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GB/T 28727-2025 气体分析-气体中微量硫化合物含量的测定-火焰光度气相色谱法(中英文版) Gas Analysis - Determination of Trace Sulfur Compounds in Gases - Flame Photometric Gas Chromatography Method |
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GB/T 28124-2025 气体分析-惰性气体中微量氢、氧、甲烷、一氧化碳含量的测定-氧化锆气相色谱法(中英文版) Gas Analysis - Determination of Trace Hydrogen, Oxygen, Methane, and Carbon Monoxide in Inert Gases - Zirconia Gas Chromatography Method |
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GB/T 7122-2025 高强度胶粘剂剥离强度的测定 - 浮辊法(中英文版) Determination of Peel Strength of High-Strength Adhesives - Floating Roller Method |
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GB/T 6730.46-2025 铁矿石 - 砷含量的测定 - 蒸馏分离-砷钼蓝分光光度法(中英文版) Iron Ore - Determination of Arsenic Content - Distillation Separation - Arsenic Molybdenum Blue Spectrophotometric Method |
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GB/T 4702.16-2025 金属铬 - 硫含量的测定 - 红外线吸收法和燃烧中和滴定法(中英文版) Metallic Chromium - Determination of Sulfur Content - Infrared Absorption Method and Combustion Neutralization Titration Method |
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GB/T 6730.11-2025 铁矿石 - 铝含量的测定 - EDTA滴定法(中英文版) Iron Ore - Determination of Aluminum Content - EDTA Titration Method |
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GB/T 6730.13-2025 铁矿石 - 钙和镁含量的测定 - EGTA-CyDTA滴定法(中英文版) Iron Ore - Determination of Calcium and Magnesium Content - EGTA-CyDTA Titration Method |
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GB/T 3286.2-2025 石灰石及白云石化学分析方法 - 第2部分:硅、铝含量的测定(中英文版) Chemical Analysis Methods for Limestone and Dolomite - Part 2: Determination of Silicon and Aluminum Content |
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GB/T 5195.12-2025 萤石化学分析方法 - 第12部分:砷含量的测定(中英文版) Chemical Analysis Methods for Fluorspar - Part 12: Determination of Arsenic Content |
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GB/T 223.13-2025 钢铁及合金 - 钒含量的测定 - 滴定法和分光光度法(中英文版) Steel and Alloys - Determination of Vanadium Content - Titrimetric and Spectrophotometric Methods |
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GB/T 223.11-2025 钢铁及合金 - 铬含量的测定 - 滴定法和分光光度法(中英文版) Steel and Alloys - Determination of Chromium Content - Titrimetric and Spectrophotometric Methods |
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GB/T 223.8-2025 钢铁及合金 - 铝含量的测定 - 滴定法和分光光度法(中英文版) Steel and Alloys - Determination of Aluminum Content - Titration and Spectrophotometric Methods |
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GB/T 223.6-2025 钢铁及合金 - 硼含量的测定 - 中和滴定法和分光光度法(中英文版) Steel and Alloys - Determination of Boron Content - Neutralization Titration and Spectrophotometric Methods |
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GB/T 5195.4-2025 萤石化学分析方法 - 第4部分:总硫、硫化物含量的测定(中英文版) Chemical Analysis Methods for Fluorspar - Part 4: Determination of Total Sulfur and Sulfide Content |
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GB/T 46056-2025 重量法、光度法和滴定法测定耐火材料中的硫(中英文版) Determination of Sulfur in Refractories by Gravimetric, Photometric, and Titrimetric Methods |
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GB/T 3653.4-2025 硼铁 - 铝含量的测定 - EDTA滴定法、铬天青S分光光度法和电感耦合等离子体发射光谱法(中英文版) Ferroboron: Determination of Aluminum Content by EDTA Titration, Chromazone S Spectrophotometry, and Inductively Coupled Plasma Emission Spectroscopy |
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GB/T 4699.8-2025 铬铁、硅铬合金、氮化铬铁和高氮铬铁-硅含量的测定-硅钼蓝分光光度法、氟硅酸钾滴定法和高氯酸脱水重量法(中英文版) Ferrochrome, Silicon-Chromium Alloy, Chromium Nitride Iron, and High-Nitrogen Ferrochrome: Determination of Silicon Content - Silicon Molybdenum Blue Spectrophotometry, Potassium Fluorosilicate Titration, and Perchloric Acid Dehydration Gravimetric Method |
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GB/T 30072-2025 镍铁 - 镍含量的测定 - EDTA滴定法(中英文版) Ferronickel: Determination of Nickel Content - EDTA Titration Method |
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GB/T 15072.6-2025 贵金属合金化学分析方法 - 第6部分:铱含量的测定(中英文版) Chemical Analysis Methods for Precious Metal Alloys - Part 6: Determination of Iridium Content |
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GB/T 15072.20-2025 贵金属合金化学分析方法 - 第20部分:铑含量的测定(中英文版) Chemical Analysis Methods for Precious Metal Alloys - Part 20: Determination of Rhodium Content |
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GB/T 15072.4-2025 贵金属合金化学分析方法 - 第4部分:钯含量的测定(中英文版) Chemical Analysis Methods for Precious Metal Alloys - Part 4: Determination of Palladium Content |
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GB/T 15072.3-2025 贵金属合金化学分析方法 - 第3部分:铂含量的测定(中英文版) Chemical Analysis Methods for Precious Metal Alloys - Part 3: Determination of Platinum Content |
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GB/T 15072.2-2025 贵金属合金化学分析方法 - 第2部分:银含量的测定(中英文版) Chemical Analysis Methods for Precious Metal Alloys - Part 2: Determination of Silver Content |
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GB/T 15072.1-2025 贵金属合金化学分析方法 - 第1部分:金含量的测定(中英文版) Chemical Analysis Methods for Precious Metal Alloys - Part 1: Determination of Gold Content |
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GB/T 42513.9-2025 镍合金化学分析方法 - 第9部分:总硼含量的测定 - 姜黄素分光光度法(中英文版) Chemical Analysis Methods for Nickel Alloys - Part 9: Determination of Total Boron Content - Curcumin Spectrophotometric Method |
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GB/T 3884.15-2025 铜精矿化学分析方法 - 第15部分:总铁和四氧化三铁含量的测定(中英文版) Chemical Analysis Methods for Copper Concentrates Part 15: Determination of Total Iron and Fe?O? Content |
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GB/T 3884.9-2025 铜精矿化学分析方法-第9部分:砷、锑和铋含量的测定(中英文版) Chemical Analysis Methods for Copper Concentrates Part 9: Determination of Arsenic, Antimony, and Bismuth Content |
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GB/T 3884.7-2025 铜精矿化学分析方法 - 第7部分:铅和锌含量的测定 - Na2EDTA滴定法(中英文版) Chemical Analysis Methods for Copper Concentrates Part 7: Determination of Lead and Zinc Content Na?EDTA Titration Method |
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GB/T 3884.4-2025 铜精矿化学分析方法-第4部分:铅、锌、镉、镍和氧化镁含量的测定 - 火焰原子吸收光谱法?(中英文版) Chemical Analysis Methods for Copper Concentrates Part 4: Determination of Lead, Zinc, Cadmium, Nickel, and Magnesium Oxide Content by Flame Atomic Absorption Spectroscopy |
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GB/T 3884.2-2025 铜精矿化学分析方法-第2部分:金和银含量的测定 - 火焰原子吸收光谱法和火试金法(中英文版) Chemical Analysis Methods for Copper Concentrates Part 2: Determination of Gold and Silver Content by Flame Atomic Absorption Spectroscopy and Fire Assay |
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GB/T 5161-2025 金属粉末 - 有效密度的测定 - 液体浸透法(中英文版) Metal Powders - Determination of Bulk Density - Liquid Penetration Method |
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GB/T 3810.20-2025 陶瓷砖试验方法 - 第20部分:陶瓷砖曲率半径计算中挠度的测定(中英文版) Ceramic Tiles - Test Methods - Part 20: Determination of Deflection in Calculation of Curvature Radius of Ceramic Tiles |
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GB/T 3810.18-2025 陶瓷砖试验方法 - 第18部分:光反射值(LRV)的测定(中英文版) Ceramic Tiles - Test Methods - Part 18: Determination of Light Reflectance Value (LRV) |
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GB/T 42918.3-2025 塑料 - 模塑和挤出用热塑性聚氨酯 - 第3部分:用于区分聚醚型聚氨酯和聚酯型聚氨酯的测定方法(中英文版) Plastics - Thermoplastic polyurethanes for molding and extrusion - Part 3: Determination of methods for distinguishing polyether-type polyurethanes from polyester-type polyurethanes |
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GB/T 11354-2025 钢件渗氮层深度测定和金相组织检验(中英文版) Determination of Nitriding Layer Depth and Metallographic Examination of Steel Components |
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GB/T 19371-2025 饲料中蛋氨酸羟基类似物的测定-高效液相色谱法(中英文版) Determination of Methionine Hydroxy Analogues in Feed - High Performance Liquid Chromatography Method |
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GB/T 14520-2025 不饱和聚酯树脂基增强塑料中残留苯乙烯单体及其他挥发性芳烃含量的测定-气相色谱法(中英文版) Determination of Residual Styrene Monomer and Other Volatile Aromatic Hydrocarbons in Reinforced Plastics Based on Unsaturated Polyester Resins - Gas Chromatography Method |
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GB/T 20027.2-2025 橡胶或塑料涂覆织物 - 破裂强度的测定 - 第2部分:液压法(中英文版) Rubber- or Plastic-Coated Fabrics - Determination of Bursting Strength - Part 2: Hydraulic Method |
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GB/T 20027.1-2025 橡胶或塑料涂覆织物 - 破裂强度的测定 - 第1部分:钢球法(中英文版) Rubber- or Plastic-Coated Fabrics - Determination of Bursting Strength - Part 1: Steel Ball Method |
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GB/T 8658-2025 乳液聚合型苯乙烯-丁二烯橡胶生胶-结合苯乙烯含量的测定-折光指数法(中英文版) Determination of Styrene Content in Emulsion-Polymerized Styrene-Butadiene Rubber Raw Material Using the Refractive Index Method |
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GB/T 39693.4-2025 硫化橡胶或热塑性橡胶 - 硬度的测定 - 第4部分:用邵氏硬度计法(邵尔硬度)测定压入硬度(中英文版) Determination of hardness of vulcanized rubber or thermoplastic rubber - Part 4: Determination of indentation hardness using the Shore hardness method (Shore hardness) |
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GB/T 42513.8-2025 镍合金化学分析方法 - 第8部分:铌含量的测定-电感耦合等离子体原子发射光谱法(中英文版) Chemical Analysis Methods for Nickel Alloys - Part 8: Determination of Niobium Content - Inductively Coupled Plasma Atomic Emission Spectroscopy |
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GB/T 46061-2025 橡胶配合剂 - 差示扫描量热法(DSC)测定加工油玻璃化转变温度(中英文版) Rubber Compounding Agents - Determination of Processing Oil Glass Transition Temperature by Differential Scanning Calorimetry (DSC) |
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GB/T 9869.3-2025 橡胶 - 用硫化仪测定硫化特性 - 第3部分:无转子硫化仪(中英文版) Determination of Vulcanization Characteristics Using Vulcanometers - Part 3: Non-Rotating Vulcanometers |
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GB/T 17283.1-2025 天然气-水分的测定-第1部分:用冷却镜面凝析湿度计法测定水露点(中英文版) Natural Gas Determination of Moisture Part 1: Determination of Water Dew Point Using a Cooling Mirror Condensing Hygrometer |
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GB/T 46122.9-2025 烟花爆竹 - 特定化学物质检测方法 - 第9部分:汞含量的测定 - 氢化物发生-原子荧光光谱法(中英文版) Fireworks and Firecrackers - Test Methods for Specific Chemical Substances - Part 9: Determination of Mercury Content - Hydride Generation-Atomic Fluorescence Spectrometry |
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GB/T 46122.8-2025 烟花爆竹 - 特定化学物质检测方法 - 第8部分:砷含量的测定 - 氢化物发生-原子荧光光谱法(中英文版) Fireworks and Firecrackers Test Methods for Specific Chemical Substances Part 8: Determination of Arsenic Content Hydride Generation-Atomic Fluorescence Spectroscopy |
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GB/T 46122.12-2025 烟花爆竹 - 特定化学物质检测方法 - 第12部分:苦味酸和苦味酸盐含量的测定 - 高效液相色谱法(中英文版) Fireworks and Firecrackers - Methods of Testing for Specific Chemical Substances - Part 12: Determination of Potassium Permanganate and Permanganate Content - High Performance Liquid Chromatography Method |
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GB/T 46122.11-2025 烟花爆竹 - 特定化学物质检测方法 - 第11部分:磷含量的测定 - 电感耦合等离子体原子发射光谱法(ICP-OES)(中英文版) Fireworks and Firecrackers - Test Methods for Specific Chemical Substances - Part 11: Determination of Phosphorus Content - Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) |
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GB/T 46122.10-2025 烟花爆竹 - 特定化学物质检测方法 - 第10部分:硝化纤维素中氮含量的测定 - 硫酸亚铁滴定法(中英文版) Fireworks and Firecrackers - Test Methods for Specific Chemical Substances - Part 10: Determination of Nitrogen Content in Nitrocellulose - Ferrous Sulfate Titration Method |
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GB/T 46122.7-2025 烟花爆竹 - 特定化学物质检测方法 - 第7部分:氯酸盐含量的测定 - 化学滴定分析法(中英文版) Fireworks and Firecrackers - Methods of Analysis for Specified Chemical Substances - Part 7: Determination of Chlorate Content - Chemical Titration Analysis |
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GB/T 46122.6-2025 烟花爆竹 - 特定化学物质检测方法 - 第6部分:粒度小于40μm锆含量的测定 - 电感耦合等离子体原子发射光谱法(中英文版) Fireworks and Firecrackers - Methods of Analysis for Specified Chemical Substances - Part 6: Determination of Zirconium Content in Particles Smaller than 40 μm - Inductively Coupled Plasma Atomic Emission Spectroscopy |
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GB/T 46122.5-2025 烟花爆竹 - 特定化学物质检测方法 - 第5部分:铅和铅化合物含量的测定 - 电感耦合等离子体原子发射光谱法(中英文版) Fireworks and Firecrackers - Test Methods for Specific Chemical Substances - Part 5: Determination of Lead and Lead Compounds - Inductively Coupled Plasma Atomic Emission Spectroscopy |
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GB/T 46122.4-2025 烟花爆竹 - 特定化学物质检测方法 - 第4部分:铅和铅化合物含量的测定-X射线荧光光谱法(中英文版) Fireworks and Firecrackers - Test Methods for Specific Chemical Substances - Part 4: Determination of Lead and Lead Compounds - X-ray Fluorescence Spectroscopy |
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GB/T 46122.3-2025 烟花爆竹 - 特定化学物质检测方法 - 第3部分:铅和铅化合物含量的测定 - 火焰原子吸收光谱法(中英文版) Fireworks and Firecrackers - Test Methods for Specific Chemical Substances - Part 3: Determination of Lead and Lead Compounds Content - Flame Atomic Absorption Spectroscopy |
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GB/T 46122.2-2025 烟花爆竹 - 特定化学物质检测方法 - 第2部分:六氯代苯含量的测定 - 气相色谱法(中英文版) Fireworks and Firecrackers - Test Methods for Specific Chemical Substances - Part 2: Determination of Hexachlorobenzene Content - Gas Chromatography |
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GB/T 13070-2025 铀矿石中铀的测定 - 电位滴定法(中英文版) Determination of Uranium in Uranium Ore Potentiometric Titration Method |
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GB/T 384-2025 烃类燃料热值的测定 - 氧弹量热计法(中英文版) Determination of Calorific Value of Hydrocarbon Fuels - Oxygen Bomb Calorimeter Method |
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GB/T 11926-2025 二氧化铀粉末和芯块中磷的测定 - 钼蓝分光光度法(中英文版) Determination of Phosphorus in Uranium Dioxide Powder and Pellets - Molybdenum Blue Spectrophotometric Method |
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GB/T 11064.2-2023 碳酸锂、单水氢氧化锂、氯化锂化学分析方法-第2部分:氢氧化锂含量的测定-酸碱滴定法(中英文版) Chemical Analysis Methods for Lithium Carbonate, Lithium Hydroxide Monohydrate, and Lithium Chloride Part 2: Determination of Lithium Hydroxide Content Acid-Base Titration Method |
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GB/T 46044.2-2025 声学-声压法测定噪声源声功率级-混响场中的小型可移动声源工程法-第2部分:专用混响测试室法(中英文版) Acoustics - Determination of sound power levels of noise sources using the sound pressure method Engineering Methods for Small Portable Sound Sources in Reverberant Fields - Part 2: Specialized Reverberation Chamber Method |
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GB/T 45974-2025 精细陶瓷-晶粒尺寸和尺寸分布的测定方法(中英文版) Fine Ceramics - Methods for Determination of Grain Size and Size Distribution |
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GB/T 45967-2025 无机化工产品中总碳和总有机碳含量测定通用方法(中英文版) General method for determination of total carbon and total organic carbon content in inorganic chemical products |
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GB/T 30310.1-2025 浸胶帘线、线绳、纱线附胶量的测定-第1部分:核磁共振仪法(中英文版) Determination of Adhesive Content of Dipped Cord, Cord, and Yarn - Part 1: Nuclear Magnetic Resonance Method |
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GB/T 21108-2025 饲料中氯霉素、甲砜霉素和氟苯尼考的测定-高效液相色谱-串联质谱法(中英文版) Determination of Chloramphenicol, Thiamphenicol, and Florfenicol in Feeds - High Performance Liquid Chromatography-Tandem Mass Spectrometry |
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GB/T 19542-2025 饲料中磺胺类药物的测定-液相色谱-串联质谱法(中英文版) Determination of Sulfonamides in Feed - Liquid Chromatography - Tandem Mass spectrometry |
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GB/T 18114.11-2025 稀土精矿化学分析方法-第11部分:氟含量的测定(中英文版) Chemical analysis methods for rare earth concentrates - Part 11: Determination of fluorine content |
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GB/T 18114.9-2025 稀土精矿化学分析方法-第9部分:五氧化二磷含量的测定(中英文版) Chemical analysis methods for rare earth concentrates - Part 9: Determination of phosphorus pentoxide content |
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GB/T 18114.8-2025 稀土精矿化学分析方法-第8部分:稀土氧化物含量和配分量的测定(中英文版) Chemical analysis methods for rare earth concentrates - Part 8: Determination of rare earth oxide content and proportioning ratio |
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GB/T 18114.3-2025 稀土精矿化学分析方法-第3部分:氧化钙含量的测定(中英文版) Chemical analysis methods for rare earth concentrates - Part 3: Determination of calcium oxide content |
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GB/T 17811-2025 动物源性蛋白质饲料胃蛋白酶消化率的测定-过滤法(中英文版) Determination of pepsin digestibility of animal-derived protein feeds - Filtration method |
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GB/T 12690.11-2025 稀土金属及其氧化物中非稀土杂质化学分析方法-第11部分:镁含量的测定-火焰原子吸收光谱法(中英文版) Chemical Analysis Methods for Non-Rare Earth Impurities in Rare Earth Metals and Their Oxides - Part 11: Determination of Magnesium Content - Flame Atomic Absorption Spectrometry |
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GB/T 10425-2025 烧结金属摩擦材料-表观硬度的测定(中英文版) Sintered Metal Friction Materials - Determination of Apparent Hardness |
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GB/T 10424-2025 烧结金属摩擦材料-抗压强度的测定(中英文版) Sintered Metal Friction Materials - Determination of Compressive Strength |
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GB/T 10267.2-2025 金属钙分析方法-第2部分:光度法测定微量硅(中英文版) Analysis Methods for Calcium Metal - Part 2: Photometric Determination of Trace Silicon |
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GB/T 10267.1-2025 金属钙分析方法-第1部分:氯离子选择性电极法测定氯(中英文版) Analysis Methods for Calcium Metal - Part 1: Determination of Chloride by Chloride Ion Selective Electrode |
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GB/T 7702.20-2025 煤质颗粒活性炭试验方法-第20部分:孔容积和比表面积的测定(中英文版) Test methods for coal-based granular activated carbon - Part 20: Determination of pore volume and specific surface area |
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GB/T 4699.2-2025 铬铁、硅铬合金、氮化铬铁和高氮铬铁-铬含量的测定-过硫酸铵氧化滴定法和电位滴定法(中英文版) Ferrochrome, silicon-chromium alloys, ferrochrome nitride, and high-nitrogen ferrochrome - Determination of chromium content - Ammonium persulfate oxidation titration and potentiometric titration |
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GB/T 3780.21-2025 炭黑-第21部分:筛余物的测定-水冲洗法(中英文版) Carbon black - Part 21: Determination of sieve residue - Water rinse method |
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GB/T 3051-2025 无机化工产品中氯化物含量测定的通用方法-汞量法和离子色谱法(中英文版) General method for determination of chloride content in inorganic chemical products - Mercuriometric method and ion chromatography |
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