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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/Z 43998-2024 |
Nanotechnology - Methods for measuring the concentration of nanoscale carbon black and amorphous silica in the air of mixed dust manufacturing environments {译} 纳米技术-混合粉尘制造环境空气中纳米级炭黑和无定形二氧化硅浓度的测量方法 |
China National Standards concentration |
 English PDF |
| GB/T 43341-2023 |
Nanotechnology Defect concentration measurement in graphene Raman spectroscopy {译} 纳米技术 石墨烯的缺陷浓度测量 拉曼光谱法 |
China National Standards concentration |
English PDF |
| GB 5009.225-2023 |
National food safety standards Determination of ethanol concentration in wine and edible alcohol {译} 食品安全国家标准 酒和食用酒精中乙醇浓度的测定 |
China National Standards concentration |
English PDF |
| GB/T 43089-2023 |
High salt water concentration electrodialyzer {译} 高盐水浓缩电渗析器 |
China National Standards concentration |
English PDF |
| GB/T 42732-2023 |
Nanotechnology Size distribution and concentration measurement of inorganic nanoparticles in aqueous phase Single particle inductively coupled plasma mass spectrometry {译} 纳米技术 水相中无机纳米颗粒的尺寸分布和浓度测量 单颗粒电感耦合等离子体质谱法 |
China National Standards concentration |
English PDF |
| GB/T 42660-2023 |
Aerosol particle number concentration Calibration of condensation particle counters {译} 气溶胶颗粒数量浓度 凝结核颗粒计数器的校准 |
China National Standards concentration |
English PDF |
| GB/T 13277.8-2023 |
Compressed air - Part 8: Methods of measurement of mass concentration of solid particles {译} 压缩空气 第8部分：固体颗粒质量浓度测量方法 |
China National Standards concentration |
English PDF |
| GB/T 41456-2022 |
Detection method of nano titanium dioxide dust concentration in nanotechnology production environment Spectrophotometry {译} 纳米技术 生产环境纳米二氧化钛粉尘浓度检测方法 分光光度法 |
China National Standards concentration |
English PDF |
| GB/T 25915.15-2022 |
Clean rooms and related controlled environments - Part 15: Suitability assessment of equipment and materials by concentration of gaseous chemicals {译} 洁净室及相关受控环境 第15部分： 按气态化学物浓度评定设备及材料的适用性 |
China National Standards concentration |
English PDF |
| GB/T 25915.14-2022 |
Clean rooms and related controlled environments - Part 14: Assessment of equipment suitability by particle concentration {译} 洁净室及相关受控环境 第14部分：按粒子浓度评估设备适用性 |
China National Standards concentration |
English PDF |
| GB/T 40508-2021 |
Determination of tar and dust concentrations in biomass-based synthetic gas 生物质燃气中焦油和灰尘含量的测定方法 |
China National Standards concentration |
English PDF |
| GB/T 40345-2021 |
Crop protection equipment—Test method for the determination of drainable volume and its concentration 植物保护机械 确定可排放液体体积及浓度的试验方法 |
China National Standards concentration |
English PDF |
| GB/T 25915.8-2021 |
Cleanrooms and associated controlled environments—Part 8: Classification of air cleanliness by chemical concentration (ACC) 洁净室及相关受控环境 第8部分：按化学物浓度划分空气洁净度(ACC)等级 |
China National Standards concentration |
English PDF |
| GB/T 25915.2-2021 |
Cleanrooms and associated controlled environments—Part 2: Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration 洁净室及相关受控环境 第2部分：洁净室空气粒子浓度的监测 |
China National Standards concentration |
English PDF |
| GB/T 25915.1-2021 |
Cleanrooms and associated controlled environments—Part 1: Classification of air cleanliness by particle concentration 洁净室及相关受控环境 第1部分：按粒子浓度划分空气洁净度等级 |
China National Standards concentration |
English PDF |
| GB/T 25915.10-2021 |
Cleanrooms and associated controlled environments—Part 10: Classification of surface cleanliness by chemical concentration 洁净室及相关受控环境 第10部分：按化学物浓度划分表面洁净度等级 |
China National Standards concentration |
English PDF |
| GB/T 14146-2021 |
Test method for carrier concentration of silicon epitaxial layers - Capacitance-voltage method 硅外延层载流子浓度的测试 电容-电压法 |
China National Standards concentration |
English PDF |
| GB/T 2423.33-2021 |
Environmental testing - Part 2: Test methods - Test Kca: High concentration sulfur dioxid 环境试验 第2部分：试验方法 试验Kca：高浓度二氧化硫试验 |
China National Standards concentration |
English PDF |
| GB 40881-2021 |
Code for security system design of low concentration gas pipeline transportation of coal mine 煤矿低浓度瓦斯管道输送安全保障系统设计规范 |
China National Standards concentration |
English PDF |
| GB/T 25915.12-2021 |
Cleanrooms and associated controlled environments—Part 12: Specifications for monitoring of air cleanliness by nanoscale particle concentration 洁净室及相关受控环境 第12部分：监测空气中纳米粒子浓度的技术要求 |
China National Standards concentration |
English PDF |
| GB/T 39193-2020 |
Ambient air—Determination of particulate matter mass concentration—Gravimetric method 环境空气 颗粒物质量浓度测定 重量法 |
China National Standards concentration |
English PDF |
| GB/T 38976-2020 |
Test method for the oxygen concentration in silicon materials—Inert gas fusion infrared detection method 硅材料中氧含量的测试 惰性气体熔融红外法 |
China National Standards concentration |
English PDF |
| GB/T 38723-2020 |
Determination of emission rate of volatile organic compounds from wooden furniture—concentration history method 木家具中挥发性有机化合物释放速率检测 逐时浓度法 |
China National Standards concentration |
English PDF |
| GB/T 38529-2020 |
Requirements of concentration limits for restricted substances in tyres 轮胎中限用物质的限量要求 |
China National Standards concentration |
English PDF |
| GB/T 38301-2019 |
Determination of limiting oxygen concentration (LOC) of flammable gases and vapours 可燃气体或蒸气极限氧浓度测定方法 |
China National Standards concentration |
English PDF |
| GB/T 38423-2019 |
Determination of total concentration of certain elements in toys 玩具中特定元素总含量的测定 |
China National Standards concentration |
English PDF |
| GB/T 38301-2019 |
Determination of limiting oxygen concentration (LOC) of flammable gases and vapours 可燃气体或蒸气极限氧浓度测定方法 |
China National Standards concentration |
English PDF |
| GBZ/T 192.6-2018 |
Determination of dust in workplace air - Part 6: Total concentration of ultrafine and fine granules 工作场所空气中粉尘测定-第6部分：超细颗粒和细颗粒总数量浓度 |
China National Standards concentration |
English PDF |
| GB/T 16425-2018 |
Determination for minimum explosive concentration of dust clouds 粉尘云爆炸下限浓度测定方法 |
China National Standards concentration |
English PDF |
| GB/T 35097-2018 |
Microbeam analysis—Scanning electron microscopy with energy dispersive X-ray spectrosmetry—Determination of numberical concentration of inorganic fibrous particles in ambient air 微束分析 扫描电镜-能谱法 环境空气中石棉等无机纤维状颗粒计数浓度的测定 |
China National Standards concentration |
English PDF |
| GB/T 25915.9-2018 |
Cleanrooms and associated controlled environments—Part 9: Classification of surface cleanliness by particle concentration 洁净室及相关受控环境 第9部分：按粒子浓度划分表面洁净度等级 |
China National Standards concentration |
English PDF |
| GB/T 36705-2018 |
Test method for carrier concentration of gallium nitride substrates—Raman spectrum method 氮化镓衬底片载流子浓度的测试 拉曼光谱法 |
China National Standards concentration |
English PDF |
| GB/T 36700.5-2018 |
Chemicals—Guidance on hazard classification to the aquatic environment—Part 5: Bioconcentration 化学品 水生环境危害分类指导 第5部分：生物富集 |
China National Standards concentration |
English PDF |
| GB/T 35804-2018 |
Rubber, vulcanized or thermoplastic－Resistance to ozone cracking－Test methods for determining the ozone concentration in laboratory test chambers 硫化橡胶或热塑性橡胶 耐臭氧龟裂 测定试验箱中臭氧浓度的试验方法 |
China National Standards concentration |
English PDF |
| GB/T 34796-2017 |
Quantification and purity analysis of nucleic acid concentration in solution—Ultraviolet spectrophotometry 水溶液中核酸的浓度和纯度检测 紫外分光光度法 |
China National Standards concentration |
English PDF |
| GB/T 34666.1-2017 |
Technical specification for compilation for water quality criteria data—Part 1：Pollutants concentration 水质基准数据整编技术规范 第1部分：污染物含量 |
China National Standards concentration |
English PDF |
| GB/T 34536-2017 |
Natural gas—Determination of radon concentration—Scintillation flash method 天然气 氡浓度的测定 闪烁瓶法 |
China National Standards concentration |
English PDF |
| GB/T 35570-2017 |
Determination of tritium activity concentration in sea water—Low-background liquid scintillation spectrometry method 海水中氚的测定 低本底液体闪烁能谱法 |
China National Standards concentration |
English PDF |
| GB/T 20216-2016 |
Pulp and paper—Determination of the effective residual ink concentration (ERIC number)—Infrared reflectance measurement 纸浆和纸 有效残余油墨浓度（ERIC值）的测定 红外线反射率测量法 |
China National Standards concentration |
English PDF |
| GB/T 33043-2016 |
Standard test method for determining formaldehyde concentrations in air and emission rates from wood products using a large chamber 人造板甲醛释放量测定大气候箱法 |
China National Standards concentration |
English PDF |
| GB 5009.225-2016 |
National Food Safety Standard - Determination of ethanol concentration 食品安全国家标准 酒中乙醇浓度的测定 |
China National Standards concentration |
English PDF |
| GB/T 19199-2015 |
Test method for carbon acceptor concentration in semi-insulating gallium arsenide single crystals by infrared absorption spectroscopy 半绝缘砷化镓单晶中碳浓度的红外吸收测试方法 |
China National Standards concentration |
English PDF |
| GB/T 17170-2015 |
Test method for the EL2 deep donor concentration in semi-insulating gallium arsenide single crystals by infrared absorption spectroscopy 半绝缘砷化镓单晶深施主EL2浓度红外吸收测试方法 |
China National Standards concentration |
English PDF |
| GB/T 31709-2015 |
Data processing of background atmospheric carbon dioxide and methane concentration measured by in situ gas chromatographic (GC) system 气相色谱法本底大气二氧化碳和甲烷浓度在线观测数据处理方法 |
China National Standards concentration |
English PDF |
| GB/T 31707-2015 |
Data processing of background atmospheric carbon monoxide concentration measured by in situ gas chromatographic (GC) system 气相色谱法本底大气一氧化碳浓度在线观测数据处理方法 |
China National Standards concentration |
English PDF |
| GB/T 31705-2015 |
In situ mesaurement of background atmospheric carbon dioxide and methane concentration by gas chromatographic(GC) system 气相色谱法本底大气二氧化碳和甲烷浓度在线观测方法 |
China National Standards concentration |
English PDF |
| GB/T 31270.7-2014 |
Test guidelines on environmental safety assessment for chemical pesticides―Part 7: Bioconcentration test 化学农药环境安全评价试验准则 第7部分：生物富集试验 |
China National Standards concentration |
English PDF |
| GB/T 30921.1-2014 |
Test method of purified terephthalic acid (PTA) for industrial use―Part 1：Determination of concentrations of 4-carboxybenzaldehyde (4-CBA) and p-toluic acid (p-TOL) 工业用精对苯二甲酸（PTA）试验方法 第1部分：对羧基苯甲醛（4-CBA）和对甲基苯甲酸(p-TOL)含量的测定 |
China National Standards concentration |
English PDF |
| GB/T 30128-2013 |
Textiles—Testing and evaluation for negative-ion concentration 纺织品 负离子发生量的检测和评价 |
China National Standards concentration |
English PDF |
| GB/T 24572.5-2013 |
Standard practice for separation and concentration of ignitable liquid residues from fire debris samples―Part 5：Purge and trap concentration 火灾现场易燃液体残留物实验室提取方法 第5部分：吹扫捕集法 |
China National Standards concentration |
English PDF |
| GB/T 50815-2013 |
Technical code of vacuum concentration treatment for weak sulfuric acid 稀硫酸真空浓缩处理技术规范 |
China National Standards concentration |
English PDF |
| GB/T 28628-2012 |
Test method for air ion concentration of materials 材料诱生空气离子量测试方法 |
China National Standards concentration |
English PDF |
| GB/T 25749.8-2012 |
Safety of machinery - Evaluation of the emission of airborne hazardous substances - Part 8: Room method for the measurement of the pollutant concentration parameter 机械安全 空气传播的有害物质排放的评估 第8部分：测量污染物浓度参数的室内法 |
China National Standards concentration |
English PDF |
| GB/T 25749.7-2012 |
Safety of machinery - Evaluation of the emission of airborne hazardous substances - Part 7: Test bench method for the measurement of the pollutant concentration parameter 机械安全 空气传播的有害物质排放的评估 第7部分：测量污染物浓度参数的试验台法 |
China National Standards concentration |
English PDF |
| GB 27742-2011 |
Activity concentration for material not requiring radiological regulation 可免于辐射防护监管的物料中放射性核素活度浓度 |
China National Standards concentration |
English PDF |
| GB/T 27824-2011 |
Chemicals - Test method of acute inhalation toxicity - Fixed concentration procedure 化学品 急性吸入毒性 固定浓度试验方法 |
China National Standards concentration |
English PDF |
| GB/T 27581-2011 |
Electromagnetic interference shielding Film - Electroless copper plating solution - Method of determining concentration of Ni2+ and Cu2+ 电磁屏蔽膜 化学镀铜溶液 镍离子和铜离子含量测定方法 |
China National Standards concentration |
English PDF |
| GB/T 26572-2011 |
Requirements of concentration limits for certain restricted substances in electrical and electronic products 电子电气产品中限用物质的限量要求 |
China National Standards concentration |
English PDF |
| GB 19522-2010 |
Blood & breath alcohol concentration and examination for vehicle drivers 车辆驾驶人员血液、呼气酒精含量阈值与检验 |
China National Standards concentration |
English PDF |
| GB/T 17418.6-2010 |
Methods for analysis of noble metals in geochemical samples - Part 6: Determination of platinum, palladium and gold content - Preconcentration by fire assay - emission spectrometry 地球化学样品中贵金属分析方法 第6部分：铂量、钯量和金量的测定 火试金富集-发射光谱法 |
China National Standards concentration |
English PDF |
| GB/T 17418.4-2010 |
Methods for analysis of noble metals in geochemical samples - Part 4: Determination of iridium content - Preconcentration by thiourea-catalytic spectrophotometric method 地球化学样品中贵金属分析方法 第4部分：铱量的测定 硫脲富集-催化分光光度法 |
China National Standards concentration |
English PDF |
| GB/T 17418.3-2010 |
Methods for analysis of noble metals in geochemical samples - Part 3: Determination of palladium content - Preconcentration by thiourea - graphite furnace atomic absorption spectrophotometric method 地球化学样品中贵金属分析方法 第3部分：钯量的测定 硫脲富集-石墨炉原子吸收分光光度法 |
China National Standards concentration |
English PDF |
| GB/T 17418.2-2010 |
Methods for analysis of noble metals in geochemical samples - Part 2：Determination of platinum and rhodium content-Preconcentration by thiourea-catalytic polarographic method 地球化学样品中贵金属分析方法 第2部分：铂量和铑量的测定 硫脲富集-催化极谱法 |
China National Standards concentration |
English PDF |
| GB/T 14146-2009 |
Silicon epitaxial layers-determination of carrier concentration-mercury probe voltages-capacitance method 硅外延层载流子浓度测定 汞探针电容-电压法 |
China National Standards concentration |
English PDF |
| GB/T 24572.4-2009 |
Standard practice for separation and concentration of ignitable liquid residues from fire debris samples - Part 4: Solid phase microextraction(SPME) 火灾现场易燃液体残留物实验室提取方法 第4部分：固相微萃取法 |
China National Standards concentration |
English PDF |
| GB/T 24572.3-2009 |
Standard practice for separation and concentration of ignitable liquid residues from fire debris samples - Part 3: Activated charcoal absorption 火灾现场易燃液体残留物实验室提取方法 第3部分：活性炭吸附法 |
China National Standards concentration |
English PDF |
| GB/T 24572.2-2009 |
Standard practice for separation and concentration of ignitable liquid residues from fire debris samples - Part 2: Direct headspace vapors sampling 火灾现场易燃液体残留物实验室提取方法 第2部分：直接顶空进样法 |
China National Standards concentration |
English PDF |
| GB/T 24572.1-2009 |
Standard practice for separation and concentration of ignitable liquid residues from fire debris samples - Part 1: Solvent extraction 火灾现场易燃液体残留物实验室提取方法 第1部分：溶剂提取法 |
China National Standards concentration |
English PDF |
| GB/T 23574-2009 |
Metal cutting machine tools - Determination method of oil mist concentration 金属切削机床 油雾浓度的测量方法 |
China National Standards concentration |
English PDF |
| GB/T 23573-2009 |
Metal-cutting machine tools - Determination method of dust concentration 金属切削机床 粉尘浓度的测量方法 |
China National Standards concentration |
English PDF |
| GB/T 21858-2008 |
Testing of chemicals - Bioconcentration - Semi-static fish test 化学品 生物富集 半静态式鱼类试验 |
China National Standards concentration |
English PDF |
| GB/T 21844-2008 |
Standard test method for concentration limits of flammability of chemicals (vapors and gases) 化合物(蒸气和气体)易燃性浓度限值的标准试验方法 |
China National Standards concentration |
English PDF |
| GB/T 21800-2008 |
Testing of chemicals Bioconcentration - Flow-through fish test 化学品 生物富集 流水式鱼类试验 |
China National Standards concentration |
English PDF |
| GB/T 11276-2007 |
Surface active agents - Determination of the critical micellization concentration 表面活性剂 临界胶束浓度的测定 |
China National Standards concentration |
English PDF |
| GB 20664-2006 |
Limitation concentration of natural radioactivity in non-ferrous metal ores and concentrates products 有色金属矿产品的天然放射性限值 |
China National Standards concentration |
English PDF |
| GB/T 8757-2006 |
Determination of carrier concentration in gallium arsenide by the plasma resonance minimum 砷化镓中载流子浓度等离子共振测量方法 |
China National Standards concentration |
English PDF |
| GB/T 11068-2006 |
Gallium arsenide epitaxial layer - determination of carrier concentration voltage-capacitance method 砷化镓外延层载流子浓度电容-电压测量方法 |
China National Standards concentration |
English PDF |
| GB/T 20176-2006 |
Surface chemical analysis-Secondary-ion mass spectrometry-Determination of boron atomic concentration in silicon using uniformly doped materials 表面化学分析 二次离子质谱 用均匀掺杂物质测定硅中硼的原子浓度 |
China National Standards concentration |
English PDF |
| GB/T 20176-2006 |
Surface chemical analysis-Secondary-ion mass spectrometry-Determination of boron atomic concentration in silicon using uniformly doped materials 表面化学分析 二次离子质谱 用均匀掺杂物质测定硅中硼的原子浓度 |
China National Standards concentration |
English PDF |
| GB/T 19745-2005 |
Corrosion tests in artificial atmosphere at very low concentrations of polluting gas(es) 人造低浓度污染气氛中的腐蚀试验 |
China National Standards concentration |
English PDF |
| GB/T 2423.33-2005 |
Environmental testing for electric and electronic products Part 2:Test Method Test Kca:High concentration sulfur dioxide 电工电子产品环境试验 第2部分:试验方法 试验Kca：高浓度二氧化硫试验 |
China National Standards concentration |
English PDF |
| GB 19614-2004 |
concentration limitations of pollutants in ground water for the destruction of abandoned chemical weapons by Japan in China 销毁日本遗弃在华化学武器 地下水中污染物浓度标准(试行) |
China National Standards concentration |
English PDF |
| GB 19613-2004 |
concentration limitations of pollutants in surface water for the destruction of abandoned chemical weapons by Japan in China 销毁日本遗弃在华化学武器 地表水中污染物浓度标准(试行) |
China National Standards concentration |
English PDF |
| GB 19612-2004 |
concentrationlimitation of air pollutants for the destruction of abandoned chemical weapons by Japan in China 销毁日本遗弃在华化学武器 环境空气中污染物浓度标准(试行) |
China National Standards concentration |
English PDF |
| GB/T 5399-2004 |
Pulps--Determination of stock concentration 纸浆 浆料浓度的测定 |
China National Standards concentration |
English PDF |
| GB/T 19199-2003 |
Test method for carbon concentration of semi-insulating monocrystal gallium arsenide by measurement infrared absorption method 半绝缘砷化镓单晶中碳浓度的红外吸收测试方法 |
China National Standards concentration |
English PDF |
| GB 19059-2003 |
Regulation for concentration of pollutants in the workplace air for destruction of chemicalweapons abandoned in China by Japan 销毁日本遗弃在华化学武器工作区空气中污染物浓度标准(试行) |
China National Standards concentration |
English PDF |
| GB/T 17170-1997 |
Test method for deep level EL2 concentration of undoped semiinsulating monocrystal gallium arsenide by measurement infra-red absorption method 非掺杂半绝缘砷化镓单晶深能级EL2浓度红外吸收测试方法 |
China National Standards concentration |
English PDF |
| GB/T 16425-1996 |
Determination for minimum explosive concentration of dust cloud 粉尘云爆炸下限浓度测定方法 |
China National Standards concentration |
English PDF |
| GB/T 16147-1995 |
Scintillation flask method for measuring radon concentration in the air 空气中氡浓度的闪烁瓶测量方法 |
China National Standards concentration |
English PDF |
| GB/T 15434-1995 |
Ambient air--Determination of the mass concentration of fluoride--Method by filter sampling andfluorine ion-selective electrode analysis 环境空气 氟化物质量浓度的测定 滤膜·氟离子选择电极法 |
China National Standards concentration |
English PDF |
| GB 14882-1994 |
Limited concentrations of radioactive materials in foods 食品中放射性物质限制浓度标准 |
China National Standards concentration |
English PDF |
| GB/T 6921-1986 |
Determination of the concentration of airborne particulate matters 大气飘尘浓度测定方法 |
China National Standards concentration |
English PDF |
| GB/T 4920-1985 |
Determination of sulphuric acidmist in tail gas in sulphuric acid concentration process--Barium chromate colorimetric method 硫酸浓缩尾气硫酸雾的测定 铬酸钡比色法 |
China National Standards concentration |
English PDF |
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