美利体育登录入口官网

含碳化硅、氮化硅、氧氮化硅和赛龙的原材料及耐火材料的化学分析 第3部分：氮、氧及金属和氧化物组分的测定（ISO 21068-3:2024）

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO 21068-3:2024)

作为电绝缘材料的氮气的标准规格

Standard Specification for Nitrogen Gas as an Electrical Insulating Material

作为汽车火花点火发动机燃料与汽油混合用甲基叔丁基醚（MTBE）的标准规范

Standard Specification for Methyl Tertiary-Butyl Ether (MTBE) for Blending With Gasolines for Use as Automotive Spark-Ignition Engine Fuel

铁素体材料的化学分析.钢铁中氧含量测定.氧测定用钢样品的抽样和制备

Chemical analysis of ferrous materials - Determination of oxygen in steel and iron - Sampling and preparation of steel samples for oxygen determination

钢铁材料的化学分析.钢和铁中氧的含量测定.在惰性气体中熔解后红外法

Chemical analysis of ferrous materials - Determination of oxygen in steel and iron - Infrared method after fusion under inert gas

汽车燃料 无铅汽油 要求和试验方法

Automotive fuels. Unleaded petrol. Requirements and test methods

含碳化硅、氮化硅、氧氮化硅和赛隆的原材料和耐火制品的化学分析 氮、氧、金属和氧化物成分的测定

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon-Determination of nitrogen, oxygen and metallic and oxidic constituents

钢 氧气的测定 惰性气体下熔融后红外吸收法（常规法）

Steel. Determination of oxygen. Infrared absorption method after fusion under inert gas (Routine method)

精细气泡技术 测定水中细小气泡分散体中气体含量的评价方法 氧含量

Fine bubble technology. Evaluation method for determining gas content in fine bubble dispersions in water - Oxygen content

含碳化硅、氮化硅、氧氮化硅和赛隆的原材料和耐火制品的化学分析 第3部分：氮、氧、金属和氧化物成分的测定

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon – Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents

燃煤电厂大气污染物排放标准

Air Pollutant Emission Standards for Coal-fired Power Plants

黑色金属材料化学分析钢和铁中氧的测定第1部分：氧测定用钢样品的取样和制备

Chemical analysis of ferrous materials - Determination of oxygen in steel and iron - Part 1: Sampling and preparation of steel samples for oxygen determination; German version EN 10276-1:2000

钢铁材料的化学分析.钢铁中氧含量的测定.第2部分:在惰性气体中熔解后的红外法

Chemical analysis of ferrous materials - Determination of oxygen content in steel and iron - Part 2: Infrared method after fusion under inert gas; German version EN 10276-2:2003

生物基产品 使用元素美利体育登录入口官网测定氧含量（草案）

Bio-based products - Determination of the oxygen content using an elemental analyser

生物基产品 使用元素美利体育登录入口官网测定氧含量

Bio-based products - Determination of the oxygen content using an elemental analyser

含碳化硅、氮化硅、氧氮化硅和赛隆的原材料和耐火制品的化学分析 第3部分：氮、氧和金属及氧化物成分的测定（ISO 21068-3:2024）

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO 21068-3:2024); German version EN...

含碳化硅、氮化硅、氧氮化硅和赛隆的原材料和耐火产品的化学分析 第3部分：氮、氧和金属及氧化物成分的测定（ISO 21068-3:2024）

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO 21068-3:2024); German version EN...

搪瓷和瓷釉 根据莫氏硬度测定表面划痕硬度（ISO 6769:2022）；德文版 EN ISO 6769:2022

Vitreous and porcelain enamels - Determination of surface scratch hardness according to the Mohs scale (ISO 6769:2022); German version EN ISO 6769:2022

金属粉末.用还原法测定氧含量.第1部分:总则

Metallic powders; determination of oxygen content by reduction methods; general guidelines; identical with ISO 4491-1:1989

食品安全国家标准　食品添加剂　氧化亚氮

National Food Safety Standard Food Additive Nitrous Oxide

钒氮合金 氧含量的测定 红外线吸收法

Vanadium-nitrogen—Determination of oxygen content—Infrared absorption method

稀土铁合金化学分析方法 第5部分：氧含量的测定 脉冲-红外吸收法

Chemical analysis method for rare earth ferroalloy—Part 5: Determination of oxygen content—Impulse-infrared absorption method

高纯金属铬

High-purity chromium metal

硅材料中氧含量的测试 惰性气体熔融红外法

Test method for the oxygen concentration in silicon materials—Inert gas fusion infrared detection method

光伏硅材料 氧含量的测定 脉冲加热惰性气体熔融红外吸收法

Photovoltaic silicon material—Determination of oxygen—Pulse heating inert gas fusion infrared absorption method

气体中微量氧的测定.比色法

Determination of trace oxygen in the gases. Colorimetric method

航空航天用铝合金棒材规范

Specification for aluminum alloy rods for aerospace use

航天用2219铝合金锻件规范

Specification for 2219 aluminum alloy forgings for aerospace use

航空航天用铝合金锻件规范

Specification for aluminum alloy forgings for aerospace applications

固体燃料 氧气测定方法

Solid fuel. Methods for the determination of oxygen content

海绵钛 氧的测定方法

Sponge titanium. Methods for determination of oxygen

汽油和甲醇燃料.用还原热解方法测定总氧含量

Gasoline and methanol fuels. Determionation of total oxygen content by methods of reductive pyrolysis

金属粉末.用还原法测定氧含量.第4部分:用还原萃取法测定总氧量

Metallic powders.Determination of oxygen content by reduction methods.Part 4: Total oxygen by reduction-extraction

麻醉和呼吸器. 医疗气体美利体育官网首页网址用低压软管组件.修改件1

Anaesthetic and respiratory equipment - Low-pressure hose assemblies for use with medical gases; Amendment 1

锆及锆合金中氧的测定方法

Methods for determination of oxygen in zirconium and zirconium alloys

锆及锆合金中氧含量的测定方法(修改件1)

Methods for determination of oxygen in zirconium and zirconium alloys (Amendment 1)

烟道气体中氧含量的测定方法

Methods for determination of oxygen in flue gas

液态石油产品.成分的测试方法.第6部分:用气相色谱法及氧选择性探测法测定氧和氧化物含量

Liquid petroleum products -- Testing method of components Part 6: Determination of oxygen content and oxygenate compounds by gas chromatography and oxygen selective detection

生物基产品 使用元素美利体育登录入口官网测定氧含量

Bio-based products - Determination of the oxygen content using an elemental analyser

汽车燃料 无铅汽油 要求与测试方法

Automotive fuels - Unleaded petrol - Requirements and test methods

含有碳化硅、氮化硅、氧氮化硅和赛隆的原料及耐火产品的化学分析 第3部分：氮、氧及金属和氧化物组分的测定 (ISO 21068?3:2024)

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO 21068?3:2024)

含碳化硅、氮化硅、氧氮化硅和赛隆的原材料和耐火制品的化学分析 第3部分：氮、氧、金属和氧化物成分的测定

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3 : determination of nitrogen, oxygen and metallic and oxidic constituents

液化石油产品.无铅汽油.气相色谱法(O-FID)测定有机氧含量和完全有机束缚氧含量

Liquid petroleum products. Unleaded petrol. Determination of organic oxygenate compounds and total organically bound oxygen content by gas chromatography (O-FID).

液体石油产品.含氧混合实际符合EN 228的要求

Liquid petroleum products - Oxygenates blending in line with actual EN 228 requirements

铁材料的化学分析 钢和铁中的氧含量测定 第2部分：惰性气体下熔融后的红外方法

Chemical analysis of ferrous materials - Determination of oxygen content in steel and iron - Part 2: Infrared method after fusion under inert gas

生物基产品 使用元素美利体育登录入口官网测定氧含量

Bio-based products - Determination of the oxygen content using an elemental analyser

汽车燃料 无铅汽油 要求和试验方法

Automotive fuels — Unleaded petrol — Requirements and test methods

化学分析方法 萤石以外的原材料和耐火制品 第3部分：氮、氧及金属与氧化物组分的测定（ISO 21068-3:2024 等同）

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon — Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO 21068-3:2024, IDT)

金属粉末 用还原法测定氧含量 第2部分:氢还原质量损失(氢损失) (ISO 4491-2:1997)

Metallic powders - Determination of oxygen content by reduction methods - Part 2: Loss of mass on hydrogen reduction (hydrogen loss) (ISO 4491-2:1997)

金属粉末 还原法测定氧含量 第3部分：氢还原性氧（ISO 4491-3:1997）

Metallic powders - Determination of oxygen content by reduction methods - Part 3: Hydrogen-reducible oxygen (ISO 4491-3:1997)

金属粉末 还原法测定氧含量 第4部分：还原萃取法总量（ISO 4491-4:2019）

Metallic powders - Determination of oxygen content by reduction methods - Part 4: Total oxygen by reduction-extraction (ISO 4491-4:2019)

聚碳硅烷裂解产物氧含量的测定 脉冲加热惰气熔融-红外线吸收法

The pyrolysis products of polycarbosilane–Determination of oxygen by the pulse heating insert gas fusion-infra-red absorption method

黑色金属材料化学分析钢和铁中氧含量的测定第2部分：惰性气体熔化后红外法

Chemical analysis of ferrous materials - Determination of oxygen content in steel and iron - Part 2: Infrared method after fusion under inert gas

生物基产品 使用元素美利体育登录入口官网测定氧含量

Bio-based products - Determination of the oxygen content using an elemental analyser

汽车燃料 无铅汽油 要求和测试方法

Automotive fuels - Unleaded petrol - Requirements and test methods

含碳化硅、氮化硅、氧氮化硅和硅铝氧氮的原料及耐火材料的化学分析 第3部分：氮、氧及金属和氧化物成分的测定（ISO 21068-3:2024）

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO 21068-3:2024) (Endorsed by Asoci...

车用燃料 无铅汽油 要求和试验方法

Automotive fuels - Unleaded petrol - Requirements and test methods

含碳化硅、氮化硅、氧氮化硅和赛隆的原材料和耐火制品的化学分析 第3部分：氮、氧、金属和氧化物成分的测定

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, siliconoxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents

钐钴1:5型永磁合金粉化学分析方法 氧量的测定 脉冲-红外吸收法

Chemical analysis methods for samarium cobalt permanent magnet alloy powder- Determination of oxygen content- Impulse-infrared absorption method

钢铁及合金 氧含量的测定 惰性气体熔融-红外吸收法

Steel, iron and alloy.Determination of oxygen content.Infrared method after fusion under inert gas

镍铂合金化学分析方法 氧和氮含量测定 脉冲-红外吸收法和热导美利体育登录入口官网法

Chemical analysis methods for nickel-platinum alloys, determination of oxygen and nitrogen content, pulse-infrared absorption method and thermal conductivity detection method

钼铼合金化学分析方法 第6部分：氧和氮含量的测定 惰性气体熔融-红外吸收法和热导法

Methods for chemical analysis of molybdenum-rhenium alloys Part 6: Determination of oxygen and nitrogen content Inert gas melting-infrared absorption method and thermal conductivity method

核级碳化硼粉末化学分析方法.氧量的测定

Methods for chemical analysis of nuclear-grade boron carbide powder.Determination of oxygen content

镍基合金粉化学分析方法 第8部分：氧含量的测定 脉冲加热惰气熔融-红外线吸收法

Methods for chemical analysis of nickel base alloy powder—Part 8: Determination of oxygen content—The pulse heating inert gas fusion-infrared absorption method