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首饰 贵金属合金的纯度

Purity of jewelry precious metal alloys

纯无机物质有证标准物质生产指南

Guidance for the production of pure inorganic substance certified reference materials

工程用电解沉积镀金层的标准规格

Standard Specification for Electrodeposited Coatings of Gold for Engineering Uses

用于工程用途的金的电沉积涂层的标准规范

Standard Specification for Electrodeposited Coatings of Gold for Engineering Uses

美国试验材料协会 北美产亚麻籽原油纯度标准

Standard Specifications for Purity of Raw Linseed Oil from North American Seed

高纯度烃冻结点的标准试验方法

Standard Test Method for Freezing Points of High-Purity Hydrocarbons

通过冻结点测定烃纯度的标准试验方法

Standard Test Method for Purity of Hydrocarbons from Freezing Points

通过冻结点测定烃纯度的标准试验方法

Standard Test Method for Purity of Hydrocarbons from Freezing Points

甲醇（甲醇）标准规范

Standard Specification for Methanol (Methyl Alcohol)

精制苯-535的标准规范

Standard Specification for Refined Benzene-535

精制苯-535的标准规范

Standard Specification for Refined Benzene-535

乙苯的标准规格

Standard Specification for Ethylbenzene

乙苯标准规范

Standard Specification for Ethylbenzene

气相色谱法测定丙烯酸酯纯度的标准试验方法

Standard Test Method for Purity of Acrylate Esters by Gas Chromatography

丙烯酸乙酯的标准规范

Standard Specification for Ethyl Acrylate

技术级和蒸汽脱脂级三氯乙烯的标准规范

Standard Specification for Trichloroethylene, Technical and Vapor-Degreasing Grade

气相色谱法进行苯分析的标准试验方法

Standard Test Method for Analysis of Benzene by Gas Chromatography

醋酸乙酯（所有等级）标准规格

Standard Specification for Ethyl Acetate (All Grades)

精制苯-545的标准规范

Standard Specification for Refined Benzene-545

橡胶化学促进剂的标准试验方法&x2014；高效液相色谱法测定纯度

Standard Test Methods for Rubber Chemical Accelerator—Purity by High Performance Liquid Chromatography

O-Xylene 980的标准规范

Standard Specification for O-Xylene 980

甲苯二氰酸盐(TDI)原料用甲苯的标准规格

Standard Specification for Toluene for Toluene Diisocyanate (TDI) Feedstock

环己烷原料苯的标准规格

Standard Specification for Benzene for Cyclohexane Feedstock

环己烷原料用苯的标准规范

Standard Specification for Benzene for Cyclohexane Feedstock

环己烷原料苯的标准规范

Standard Specification for Benzene for Cyclohexane Feedstock

毛细管气相色谱法测定异佛尔酮纯度的标准试验方法

Standard Test Method for Purity of Isophorone by Capillary Gas Chromatography

异佛树脂纯度的毛细管气相色谱法测试方法

Standard Test Method for Purity of Isophorone by Capillary Gas Chromatography

与沸石基催化剂共用的苯的标准规范

Standard Specification for Benzene for Use with Zeolite Based Catalysts

通过沸石工艺制造的异丙苯（异丙苯）的标准规范

Standard Specification for Cumene (Isopropylbenzene) Manufactured Via a Zeolite Process

歧化（TDP）甲苯的标准规范

Standard Specification for Disproportionation (TDP) Toluene

硝化级甲苯的标准规格

Standard Specification for Nitration Grade Toluene

在材料分离装置中测定产品回收率的标准试验方法

Standard Test Method for Determination of the Recovery of a Product in a Materials Separation Device

用于确定材料分离装置中产品回收率的标准测试方法

Standard Test Method for Determination of the Recovery of a Product in a Materials Separation Device

工业级乙二醇标准规范

Standard Specification for Industrial Grade Ethylene Glycol

聚酯级乙二醇标准规范

Standard Specification for Polyester Grade Ethylene Glycol

粉末冶金的基本原理

Basic principles of powder metallurgy

定量核磁共振波谱法 食品和食品用有机化合物的纯度测定 1H NMR 内标法的一般要求

Quantitative nuclear magnetic resonance spectroscopy — Purity determination of organic compounds used for foods and food products — General requirements for 1H NMR internal standard method

游泳池水处理用化学试剂.碳酸氢钠

Chemicals used for treatment of swimming pool water. Sodium hydrogen carbonate

定量核磁共振波谱 用于食品和食品的有机化合物的纯度测定 1H NMR内标法通用要求

Quantitative nuclear magnetic resonance spectroscopy. Purity determination of organic compounds used for foods and food products. General requirements for ¹H NMR internal standard method

纯有机物质标准物质生产指南

Guidance for the production of pure organic substance certified reference materials

纯无机物质认证参考物质生产的指导原则

Guidance for the production of pure inorganic substance certified reference materials

化学试药（三水合对甲苯磺醯氯胺钠）

Sodium p-toluenesulfonchloramide trihydrate (reagent)

化学试药（二苯胺）

Diphenylamine (Reagent)

化学试药（七水合硫酸铁（Ⅱ））

Iron (Ⅱ) sulfate hexahydrate (reagent)

水合1,10-啡啉（试药）

1,10-Phenanthroline,monohydrate(Reagent)

二水合柠檬酸三钠（试药）

Trisodium citrate dihydrate (Reagent)

化学试药（亚硝酸钠）

Sodium nitrite (Reagent)

定量核磁共振光谱法 食品和食品用有机化合物的纯度测定 1H NMR 内标法的一般要求

Quantitative nuclear magnetic resonance spectroscopy – Purity determination of organic compounds used for foods and food products – General requirements for 1H NMR internal standard method

中药材种子质量标准 王不留行

Seed quality standard of Chinese herbal medicine Wangbuliuxing

中药材种子质量标准 祁沙参

Qishashen

中药材种子质量标准 蒲公英

Chinese herbal medicine seed quality standard Dandelion

杂交粳稻不育系鉴定规程

Rules for Identification of CMS Lines of Hybrid Japonica Rice

贵金属首饰及珠宝玉石现场检验服务规范

Precious metal jewelry and jewelry and jade on-site inspection service specifications

贵州民族民间工艺品 錾刻银制品

Guizhou ethnic folk handicrafts chiseled silver products

色漆和清漆用溶剂.酒精.纯度的气相色谱分析

Solvents for paints and varnishes - Alcohols - Gas chromatographic determination of the degree of purity

油漆和清漆溶剂 醇 气相色谱法测定纯度

Solvents for paints and varnishes - Alcohols - Gas chromatographic determination of the degree of purity

油漆和清漆用溶剂.醋酸酯.气体色谱法测定纯度

Solvents for paints and varnishes - Acetic esters - Gas chromatographic determination of the degree of purity

色漆和清漆用溶剂.酮类.纯度的气相色谱法测定

Solvents for paints and varnishes - Ketones - Gas chromatographic determination of the degree of purity

颜料和清漆用溶剂.乙烯乙二醇醚.纯度等级气相色谱分析测定

Solvents for paints and varnishes - Ethylene glycol ethers - Gas chromatographic determination of the degree of purity

油漆和清漆溶剂 乙二醇醚 气相色谱法测定纯度

Solvents for paints and varnishes - Ethylene glycol ethers - Gas chromatographic determination of the degree of purity

油漆和清漆溶剂 丙二醇醚 气相色谱法测定纯度

Solvents for paints and varnishes - Propylene glycol ethers - Gas chromatographic determination of the degree of purity

油漆和清漆用溶剂 丙二醇醚 供应规范 进一步要求和试验方法

Solvents for paints and varnishes - Propylene glycol ethers - Supply specification, further requirements and methods of test

焊接填充材料 焊接和切割保护气体

Welding filler materials Welding and cutting shielding gases

用于处理供人类消费的水的化学品 过氧化氢

Chemicals used for treatment of water intended for human consumption - Hydrogen peroxide; German version EN 902:2016 / Note: This standard is part of the DVGW body of rules.

珠宝 贵重金属合金的钝度（草案）

Bluntness of Precious Metal Alloys in Jewelry (Draft)

珠宝.贵重金属合金的钝度(ISO 9202-2014).德文版本EN ISO 9202-2016

Jewellery - Fineness of precious metal alloys (ISO 9202:2014); German version EN ISO 9202:2016

珠宝和贵金属 贵金属合金的纯度

Jewellery and precious metals - Fineness of precious metal alloys (ISO 9202:2019); German version EN ISO 9202:2019

首饰 贵金属纯度的规定及命名方法

Jewellery.Fineness of precious metal alloys and designation

电子工业用气体.三氟化硼

Gases for electronic industry.Boron trifluoride

电子工业用气体.氧

Gas for electronic industry.Oxygen

电子工业用气体 硅烷

Gas for electronic industry—Silane

贵金属及其合金术语

Terminology precious metals and their alloys

电子特气 三氯化硼

Electronic specialty gas—Boron trichloride

电子工业用气体 六氟化硫

Gases for electronic industry.Sulphur hexaflouride

烟草种子

Tobacco seeds

摄影.加工用化学品.氢氧化钾

Photography.Processing chemicals.Specifications for potassium hydroxide

蒽醌

Anthraquinone

间脲基苯胺盐酸盐

m-Carbamidoaniline hydrochloride

电子工业用气体 四氟化硅

Gases for electronic industry.Silicon tetrafluoride

甲烷

Methane

工业用甲醇

Industrial Methanol

电子工业用气体 六氟乙烷

Gas for electronic industry—Hexafluoroethane

三氟化硼

Boron trifluoride

单体液晶测试方法

Single liquid crystal test method

电子气体 四氟甲烷

Electron gas tetrafluoromethane

纯氦、高纯氦和超纯氦

Pure helium, high-purity helium, and ultra-pure helium

氙气

Xenon

纯氙、高纯氙和超纯氙

Pure xenon, high-purity xenon, and ultra-pure xenon

工业六次甲基四胺

Hexamethylenetetramine for industrial use

金锭. 规格

Gold in ingots. Specifications

增重金条.规范

Gold weighted bullions. Specifications

卤化有机溶剂及其混合物 气相色谱分析法

Halogenated organic solvents and their admixtures. Gas chromatography method of analysis

生物技术 核酸的合成 第1部分：合成寡核苷酸的生产和质量控制要求

Biotechnology. Nucleic acid synthesis. Part 1. Requirements for the production and quality control of synthesized oligonucleotides

核磁共振定量谱分析 用于食品和农副产品中有机化合物纯度鉴定 内部标准1H NMR通用方法要求...

Quantitative nuclear magnetic resonance spectroscopy — Purity determination of organic compounds used for foods and food products — General requirements for 1H NMR internal standard method

橡胶配合剂 次磺酰胺促进剂 试验方法

Rubber compounding ingredients - Sulfenamide accelerators - Test methods

珠宝和贵金属 术语 第1部分：贵金属和单位

Jewellery and precious metals — Vocabulary — Part 1: Precious metals and units

生物技术.核酸合成.第1部分:合成寡核苷酸的生产和质量控制要求

Biotechnology — Nucleic acid synthesis — Part 1: Requirements for the production and quality control of synthesized oligonucleotides

珠宝和贵金属.1公斤金条规范

Jewellery and precious metals — Specifications for 1 kilogram gold bar

表壳和附件.金合金壳.第2部分:光洁度、厚度、抗腐蚀性和粘附性测定

Watch-cases and accessories - Gold alloy coverings - Part 2: Determination of fineness, thickness, corrosion resistance and adhesion

纯有机物质标准物质生产指南

Guidance for the production of pure organic substance certified reference materials

非合金镁锭.化学成分

Magnesium and magnesium alloys - Unalloyed magnesium - Chemical composition

珠宝和贵金属.贵金属合金的细度

Jewellery and precious metals — Fineness of precious metal alloys

干法/半干法脱硫用氧化钙性能测定方法

Test method for performances of CaO used in dry/semi-dry desulphurization

混凝土用建筑垃圾再生轻粗骨料

Recycled lightweight coarse aggregate from construction and demolition waste used for concrete

珠宝.贵金属合金的纯度

Jewellery -- Fineness of precious metal alloys

蛋白质.葡萄糖氧化酶.定量分析方法

Proteins -- Glucoseoxydase -- Methods for quantitative analysis

氩气

Argon

氮气

Nitrogen

工业用丁烷－1－o1.第2部分:质量

Butan-1-ol for industrial use -- Part 2: Quality

L-天冬酰胺一水合物（试剂）

L-Asparagine monohydrate (Reagent)

乙酰丙酮（试剂）

Acetylacetone (Reagent)

靛胭脂(试剂)

Indigo carmine (Reagent)

氯化铵

Ammonium chloride

氯化钠

Sodium chloride

高锰酸钾(试剂)

Potassium permanganate (Reagent)

高碘酸钠(试剂)

Sodium periodate (Reagent)

柠檬酸氢二铵(试剂)

Diammonium hydrogen citrate (Reagent)

对甲酚(试剂)

p-Cresol (Reagent)

乙酸铵

Ammonium acetate

乙酸钾(试剂)

Potassium acetate (Reagent)

(+)-酒石酸钾水(2/1)(试剂)

Potassium (+)-tartrate-water (2/1) (Reagent)

酒石酸氢钾(试剂)

Potassium hydrogen (+)-tartrate (Reagent)

磺胺酸(试剂)

Sulfanilic acid (Reagent)

碳酸氢钠(试剂)

Potassium hydrogen carbonate (Reagent)

脲(试剂)

Urea (Reagent)

酚酞(试剂)

Phenolphthalein (Reagent)

氟化氢铵(试剂)

Ammonium hydrogen fluoride (Reagent)

2-甲氧基乙醇(试剂)

2-Methoxyethanol (Reagent)

亚甲蓝(试剂)

Methylene blue (Reagent)

碘酸钾(化学试剂)

Potassium iodate (Reagent)

硫酸

Sulfuric acid

硫酸铁(II)七水合物(化学试剂)

Iron (II) sulfate heptahydrate (Reagent)

硫氰酸钾(试剂)

Potassium thiocyanate (Reagent)

四氢呋喃(试剂)

Tetrahydrofuran (Reagent)

硫化亚铁

Iron(II) sulfide

珠宝饰品及贵金属 贵金属合金纯度 (ISO 9202:2019)

Jewellery and precious metals - Fineness of precious metal alloys (ISO 9202:2019)

定量核磁共振波谱 食品和食品中使用的有机化合物纯度的测定 1H NMR 内标法的一般要求

Quantitative nuclear magnetic resonance spectroscopy - Determination of the purity of organic compounds used in foods and food products - General requirements for the 1H NMR internal standard method

木豆

Pigeonpea

饲料原料 甜菜糖蜜

Feed raw material beet molasses

飞行员呼吸氧气纯度标准

Aviator's Breathing Oxygen Purity Standard

水处理药剂.2-膦酸基-1，2，4-三羧酸丁烷

Water treatment chemicals - 2-Phosphonobutane-1,2,4-tricarboxylic acid

工业用乙腈 第1部分:规格

Acetonitrile for industrial use.Part 1:Specification

进出口南瓜籽仁、葵花籽仁感官检验方法

Organoleptic inspection of pumpkin seed kernel and sunflower seed kernel for import and export

烟花爆竹用化工原材料关键指标的测定.第14部分：氧化铋

Determination of essential parameters of chemical raw materials for use in fireworks and firecrackers.Part 14:Bismuth oxide

烟花爆竹用化工原材料关键指标的测定.第2部分：氟硅酸钠

Determination of essential parameters of chemical raw materials for use in fireworks and firecrackers.Part 2:Sodium hexafluorosilicate

纯无机物质认证参考物质生产的指南（ISO 33408:2025 等同采用）

Guidance for the production of pure inorganic substance certified reference material (ISO 33408:2025, IDT)

3,3',4,4'-联苯四甲酸二酐

3,3',4,4'-Biphenyltetracarboxylic dianhydride

4,4＇-二氨基二苯醚

4,4'-Diaminodiphenyl ether

化学试剂 水杨酸

Chemical reagent — Salicylic acid

1,1,2,2-四氟乙基-2,2,2–三氟乙基醚

1,1,2,2-Tetrafluoroethyl-2,2,2-trifluoroethyl ether

足金首饰

Gold Alloy Jewellery

高油酸花生纯度溯源管理规范

High oleic acid peanut purity traceability management specification

植物提取物 阿魏酸（出口专用）

Plant extract ferulic acid (for export only)

无机纯物质认证参考材料的制备指南

Guidance for the production of pure inorganic substance certified reference materials