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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards; We provide Chinese GB standards and English version GB standards Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB 21909-2008 |
Discharge standard of water pollutants for sugar industry 制糖工业水污染物排放标准 |
China National Standards and |
 English PDF |
| GB 21908-2008 |
Discharge standards of water pollutants for pharmaceutical industry mixing/compounding and formulation category 混装制剂类制药工业水污染物排放标准 |
China National Standards and |
English PDF |
| GB 21907-2008 |
Discharge standards of water pollutants for pharmaceutical industry bio-pharmaceutical category 生物工程类制药工业水污染物排放标准 |
China National Standards and |
English PDF |
| GB 21906-2008 |
Discharge standards of water pollutants for pharmaceutical industry chinese traditional medicine category 中药类制药工业水污染物排放标准 |
China National Standards and |
English PDF |
| GB 21905-2008 |
Discharge standards of water pollutants for pharmaceutical industry extraction products category 提取类制药工业水污染物排放标准 |
China National Standards and |
English PDF |
| GB 21904-2008 |
Discharge standards of water pollutants for pharmaceutical industry chemical synthesis products category 化学合成类制药工业水污染物排放标准 |
China National Standards and |
English PDF |
| GB 21903-2008 |
Discharge standards of water pollutants for pharmaceutical industry fermentation products category 发酵类制药工业水污染物排放标准 |
China National Standards and |
English PDF |
| GB 21902-2008 |
Emission standard for pollutants form synthetic leather and artificial leather industry 合成革与人造革工业污染物排放标准 |
China National Standards and |
English PDF |
| GB 21901-2008 |
Discharge standards of water pollutants for down industry 羽绒工业水污染物排放标准 |
China National Standards and |
English PDF |
| GB 21900-2008 |
Discharge standard for pollutants from electroplating 电镀污染物排放标准 |
China National Standards and |
English PDF |
| GB 7260.4-2008 |
Uninterruptible Power Systems(UPS) - Part 1-2: General and safety requirements for UPS used in restricted access locations 不间断电源设备 第1-2部分：限制触及区使用的UPS的一般规定和安全要求 |
China National Standards and |
English PDF |
| GB 7260.1-2008 |
Uninterruptible power systems(UPS) - Part 1-1: General and safety requirements for UPS used in operator access areas 不间断电源设备 第1-1部分: 操作人员触及区使用的UPS的一般规定和安全要求 |
China National Standards and |
English PDF |
| GB 20800.3-2008 |
General rules of explosion-protect techniques of reciprocating internal combustion engines for explosive atmospheres - Part 3: Group I engines for use in underground workings susceptible to firedamp and/or combustible dust 爆炸性环境用往复式内燃机防爆技术通则 第3部分：存在甲烷和（或）可燃性粉尘的地下矿区巷道用I类内燃机 |
China National Standards and |
English PDF |
| GB/T 17626.7-2008 |
Electromagnetic compatibility - Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto 电磁兼容 试验和测量技术 供电系统及所连设备谐波、谐间波的测量和测量仪器导则 |
China National Standards and |
English PDF |
| GB/T 17626.6-2008 |
Electromagnetic compatibility - Testing and measurement techniques - Immunity to conducted disturbances, induced by radio-frequency fields 电磁兼容 试验和测量技术 射频场感应的传导骚扰抗扰度 |
China National Standards and |
English PDF |
| GB/T 17626.5-2008 |
Electromagnetic compatibility - Testing and measurement techniques - Surge immunity test 电磁兼容 试验和测量技术 浪涌(冲击)抗扰度试验 |
China National Standards and |
English PDF |
| GB/T 17626.4-2008 |
Electromagnetic compatibility - Testing and measurement techniques - Electrical fast transient/burst immunity test 电磁兼容 试验和测量技术 电快速瞬变脉冲群抗扰度试验 |
China National Standards and |
English PDF |
| GB/T 17626.11-2008 |
Electromagnetic compatibility - Testing and measurement techniques - Voltage dips，short interruptions and voltage variations immunity tests 电磁兼容 试验和测量技术 电压暂降、短时中断和电压变化的抗扰度试验 |
China National Standards and |
English PDF |
| GB/T 2423.102-2008 |
Environmental testing for electric and electronic products - Part 2: Test methods - Test: combined temperature(cold and heat)/low air pressure/vibration（sinusoidal） 电工电子产品环境试验 第2部分：试验方法 试验：温度（低温、高温）/低气压/振动（正弦）综合 |
China National Standards and |
English PDF |
| GB/T 2423.101-2008 |
Environmental testing for electric and electronic products - Part 2: Test methods - Test: inclinations and swings 电工电子产品环境试验 第2部分：试验方法 试验：倾斜和摇摆 |
China National Standards and |
English PDF |
| GB/T 5169.17-2008 |
Fire hazard testing for electric and electronic products - Part 17: Test flames - 500W flame test methods 电工电子产品着火危险试验 第17部分: 试验火焰 500W 火焰试验方法 |
China National Standards and |
English PDF |
| GB/T 5169.16-2008 |
Fire hazard testing for electric and electronic products - Part 16: Test flames - 50W horizontal and vertical flame test methods 电工电子产品着火危险试验 第16部分: 试验火焰 50W 水平与垂直火焰试验方法 |
China National Standards and |
English PDF |
| GB/T 2423.58-2008 |
Environmental testing for electric and electronic products - Part 2:Tests -Test Fi: Vibration - Mixed Mode 电工电子产品环境试验 第2-80部分: 试验方法 试验Fi: 振动 混合模式 |
China National Standards and |
English PDF |
| GB/T 2423.57-2008 |
Environmental testing for electric and electronic products - Part 2: Tests - Test Ei: Shock - Shock response spectrum synthesis 电工电子产品环境试验 第2-81部分: 试验方法 试验Ei: 冲击 冲击响应谱合成 |
China National Standards and |
English PDF |
| GB/T 2423.43-2008 |
Environmental testing for electric and electronic products - Part 2: Test methods - Mounting of specimens for vibration, impact and similar dynamic tests 电工电子产品环境试验 第2部分：试验方法 振动、冲击和类似动力学试验样品的安装 |
China National Standards and |
English PDF |
| GB/T 2423.4-2008 |
Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat，cyclic ( 12h+12h cycle) 电工电子产品环境试验 第2部分：试验方法 试验Db 交变湿热（12h＋12h循环） |
China National Standards and |
English PDF |
| GB/T 2423.17-2008 |
Envrionmental testing for electric and electronic products - Part 2: Test method - Test Ka: Salt mist 电工电子产品环境试验 第2部分: 试验方法 试验Ka：盐雾 |
China National Standards and |
English PDF |
| GB/Z 21922-2008 |
Fundermental terminology and definition of nutritional component in foods 食品营养成分基本术语 |
China National Standards and |
English PDF |
| GB/T 22224-2008 |
Determination of dietary fiber in foods - Enzymatic gravimetric method and enzymatic gravimetric method - Liquid chromatography 食品中膳食纤维的测定 酶重量法和酶重量法-液相色谱法 |
China National Standards and |
English PDF |
| GB/T 22223-2008 |
Determination of total fat, saturated fat, and unsaturated fat in foods - Hydrolytic Extraction - Gas Chromatography 食品中总脂肪、饱和脂肪（酸）、不饱和脂肪（酸）的测定 水解提取-气相色谱法 |
China National Standards and |
English PDF |
| GB/T 9736-2008 |
Chemical reagent - General method for the determination of acidity and alkalinity 化学试剂 酸度和碱度测定通用方法 |
China National Standards and |
English PDF |
| GB/T 9348-2008 |
Plastics - Poly(vinyl chloride) resins - Determination of number of impurities and foreign particles 塑料 聚氯乙烯树脂 杂质与外来粒子数的测定 |
China National Standards and |
English PDF |
| GB/T 8984-2008 |
Determination of carbon monoxide,carbon dioxide and hydrocarbon in gases - Gas chromatographic method 气体中一氧化碳、二氧化碳和碳氢化合物的测定 气相色谱法 |
China National Standards and |
English PDF |
| GB/T 8979-2008 |
Pure nitrogen and high purity nitrogen and ultra pure nitrogen 纯氮、高纯氮和超纯氮 |
China National Standards and |
English PDF |
| GB/T 8088-2008 |
Rubber,raw natural and rubber latex,natural - Determination of nitrogen content 天然生胶和天然胶乳 氮含量的测定 |
China National Standards and |
English PDF |
| GB/T 6682-2008 |
Water for analytical laboratory use - Specification and test methods 分析实验室用水规格和试验方法 |
China National Standards and |
English PDF |
| GB/T 2914-2008 |
Plastics - Homopolymer and copolymer resins of vinyl chloride - Determination of volatile matter (including water) 塑料 氯乙烯均聚和共聚树脂 挥发物(包括水)的测定 |
China National Standards and |
English PDF |
| GB/T 21843-2008 |
Plastics - Vinyl chloride homopolymer and copolymer resins - Particle size determination by mechanical sieving 塑料 氯乙烯均聚和共聚树脂 用机械筛测定粒径 |
China National Standards and |
English PDF |
| GB/T 17821-2008 |
Rubber latex - Determination of density between 5℃ and 40℃ 胶乳 5℃至40℃密度的测定 |
China National Standards and |
English PDF |
| GB/T 1685-2008 |
Rubber，vulcanized or thermoplastic - Determination of stress relaxation in compression at ambient and at elevated temperatures 硫化橡胶或热塑性橡胶 在常温和高温下压缩应力松弛的测定 |
China National Standards and |
English PDF |
| GB/T 14599-2008 |
Pure oxygen and high purity oxygen and ultra pure oxygen 纯氧、高纯氧和超纯氧 |
China National Standards and |
English PDF |
| GB/T 10628-2008 |
Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures 气体分析 校准混合气组成的测定和校验 比较法 |
China National Standards and |
English PDF |
| GB/T 9761-2008 |
Paints and varnishes - Visual comparison of the colour of paints 色漆和清漆 色漆的目视比色 |
China National Standards and |
English PDF |
| GB/T 9268-2008 |
Determination of freeze-thaw resistance of latex and emulsion paints 乳胶漆耐冻融性的测定 |
China National Standards and |
English PDF |
| GB/T 9280-2008 |
Paints and varnishes - Pressure test for stackability 色漆和清漆 耐码垛性试验 |
China National Standards and |
English PDF |
| GB/T 9278-2008 |
Temperatures and humidities for conditioning and testing of paint specimens 涂料试样状态调节和试验的温湿度 |
China National Standards and |
English PDF |
| GB/T 3184-2008 |
Lead chromate pigments and lead chromate-molybdate pigments 铬酸铅颜料和钼铬酸铅颜料 |
China National Standards and |
English PDF |
| GB/T 2468-2008 |
Pyrites and concentrate - Determination of zinc content - Flame atomic absorption spectrometric and spectrphotometric methods 硫铁矿和硫精矿中锌含量的测定 火焰原子吸收光谱法和分光光度法 |
China National Standards and |
English PDF |
| GB/T 2467-2008 |
Pyrites and concentrate - Determination of lead content - Flame atomic absorption spectrometric and EDTA volumetric methods 硫铁矿和硫精矿中铅含量的测定 火焰原子吸收光谱法和EDTA容量法 |
China National Standards and |
English PDF |
| GB/T 2466-2008 |
Pyrites and concentrate - Determination of copper content - Flame atomic absorption spectrometric and spectrophotometric methods 硫铁矿和硫精矿中铜含量的测定 火焰原子吸收光谱法和分光光度法 |
China National Standards and |
English PDF |
| GB/T 2463-2008 |
Pyrites and concentrate - Determination of total iron content - Cerium sulfate volumetric and potassium dichromate volumetric methods 硫铁矿和硫精矿中全铁含量的测定 硫酸铈容量法和重铬酸钾容量法 |
China National Standards and |
English PDF |
| GB/T 21874-2008 |
Elastomeric seals - Requirements for materials for pipe joint seals used in water and drainage applications - Thermoplastic elastomers 弹性体密封件 排水管道接口密封件材料要求 热塑性弹性体 |
China National Standards and |
English PDF |
| GB/T 21873-2008 |
Rubber seals - Joint rings for water supply, drainage and sewerage pipelines - Specification for materials 橡胶密封件 给、排水管及污水管道用接口密封圈 材料规范 |
China National Standards and |
English PDF |
| GB/T 21868.6-2008 |
Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics - Part 6: Dispersion using a triple-roll mill 颜料和体质颜料 评定分散性用的分散方法 第6部分:用三辊磨分散 |
China National Standards and |
English PDF |
| GB/T 21868.5-2008 |
Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics - Part 5: Dispersion using an automatic muller 颜料和体质颜料 评定分散性用的分散方法 第5部分:用自动平磨机分散 |
China National Standards and |
English PDF |
| GB/T 21868.4-2008 |
Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics - Part 4:Dispersion using a bead mill 颜料和体质颜料 评定分散性用的分散方法 第4部分:用砂磨分散 |
China National Standards and |
English PDF |
| GB/T 21868.3-2008 |
Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics - Part 3: Dispersion using a high-speed impeller mill 颜料和体质颜料 评定分散性用的分散方法 第3部分:用高速搅拌机分散 |
China National Standards and |
English PDF |
| GB/T 21868.2-2008 |
Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics - Part 2:Dispersion using an oscillatory shaking machine 颜料和体质颜料 评定分散性用的分散方法 第2部分:用振荡磨分散 |
China National Standards and |
English PDF |
| GB/T 21868.1-2008 |
Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics - Part 1:Introduction 颜料和体质颜料 评定分散性用的分散方法 第1部分:总则 |
China National Standards and |
English PDF |
| GB/T 21867.3-2008 |
Pigments and extenders - Methods of assessment of dispersion characteristics - Part 3:Assessment from the change in gloss 颜料和体质颜料 分散性的评定方法 第3部分:由光泽的变化进行评定 |
China National Standards and |
English PDF |
| GB/T 21867.2-2008 |
Pigments and extenders - Methods of assessment of dispersion characteristics - Part 2:Assessment from the change in fineness of grind 颜料和体质颜料 分散性的评定方法 第2部分:由研磨细度的变化进行评定 |
China National Standards and |
English PDF |
| GB/T 21867.1-2008 |
Pigments and extenders - Methods of assessment of dispersion characteristics - Part 1:Assessment from the change in tinting strength of coloured pigments 颜料和体质颜料 分散性的评定方法 第1部分:由着色颜料的着色力变化进行评定 |
China National Standards and |
English PDF |
| GB/T 21866-2008 |
Test method and effect for antibacterial capability of paints film 抗菌涂料（漆膜）抗菌性测定法和抗菌效果 |
China National Standards and |
English PDF |
| GB/T 21283.3-2008 |
Rotary shaft lip-type seals incorporating thermoplastic sealing elements - Part 3 :Storage，handling and installation 密封元件为热塑性材料的旋转轴唇形密封圈 第3部分：贮存、搬运和安装 |
China National Standards and |
English PDF |
| GB/T 1770-2008 |
Rubbing test of coatings and putty films 涂膜、腻子膜打磨性测定法 |
China National Standards and |
English PDF |
| GB/T 17529.1-2008 |
Acrylic acid and acrylate esters for industrial use - Part1：Acrylic acid for industrial use 工业用丙烯酸及酯 第1部分：工业用丙烯酸 |
China National Standards and |
English PDF |
| GB/T 1747.2-2008 |
Paints and varnishes - Determination of pigment content - Part 2:Ashing method 色漆和清漆 颜料含量的测定 第2部分：灰化法 |
China National Standards and |
English PDF |
| GB/T 15907-2008 |
Rubber and plastics hoses - Method of test for flammability 橡胶和塑料软管 可燃性试验方法 |
China National Standards and |
English PDF |
| GB/T 13871.3-2008 |
Rotary shaft lip-type seals incorporating elastomeric sealing elements - Part 3: Storage，handling and installation 密封元件为弹性体材料的旋转轴唇形密封圈 第3部分：贮存、搬运和安装 |
China National Standards and |
English PDF |
| GB/T 13452.4-2008 |
Paints and varnishes - Determination of resistance to filiform corrosion on steel 色漆和清漆 钢铁表面上涂膜的耐丝状腐蚀试验 |
China National Standards and |
English PDF |
| GB/T 13452.2-2008 |
Paints and varnishes - Determination of film thickness 色漆和清漆 漆膜厚度的测定 |
China National Standards and |
English PDF |
| GB/T 12722-2008 |
Rubber and plastics hose assemblies - Flexing combined with hydraulic impulse test（half-omega test） 橡胶和塑料软管组合件 液压脉冲曲挠试验（半Ω试验） |
China National Standards and |
English PDF |
| GB/T 10834-2008 |
Ship coatings - Determination of resistance to salt water - Salt water and hot salt water immersion method 船舶漆耐盐水性的测定 盐水和热盐水浸泡法 |
China National Standards and |
English PDF |
| GB/T 9445-2008 |
Non-destructive testing - Qualification and certification of personnel 无损检测 人员资格鉴定与认证 |
China National Standards and |
English PDF |
| GB/T 7731.7-2008 |
Ferrotungsten - Determination of tin content - Phenylfluorone photometric method and inductively coupled plasma-atomic emission spectrometry 钨铁 锡含量的测定 苯基荧光酮光度法和电感耦合等离子体原子发射光谱法 |
China National Standards and |
English PDF |
| GB/T 7731.3-2008 |
Ferrotungsten - Determination of copper content - Bis(cyclohexanone)oxalyldihydrazone photometric method and flame atomic absorption spectrometric method 钨铁 铜含量的测定 双环己酮草酰二腙光度法和火焰原子吸收光谱法 |
China National Standards and |
English PDF |
| GB/T 7731.14-2008 |
Ferrotungsten - Determination of lead content - The polarographic method and inductively coupled plasma-atomic emission spectrometry 钨铁 铅含量的测定 极谱法和电感耦合等离子体原子发射光谱法 |
China National Standards and |
English PDF |
| GB/T 7731.12-2008 |
Ferrotungsten - Determination of sulfur content - Infrared absorption method and combustion titration method 钨铁 硫含量的测定 红外线吸收法和燃烧中和滴定法 |
China National Standards and |
English PDF |
| GB/T 6396-2008 |
Clad steel plates - Mechanical and technological test 复合钢板力学及工艺性能试验方法 |
China National Standards and |
English PDF |
| GB/T 5686.7-2008 |
Ferromanganese, ferromanganese-silicon,, nitrogen-bearing ferromanganese and manganese metal - Determination of sulfur content - Infrared absorption method and combustion-neutralization method 锰铁、锰硅合金、氮化锰铁和金属锰 硫含量的测定 红外线吸收法和燃烧中和滴定法 |
China National Standards and |
English PDF |
| GB/T 5686.5-2008 |
Ferromanganese, ferromanganese-silicon , nitrogen-bearing ferromanganese and manganese metal - Determination of carbon content - The infrared absorption method ,the gasometric method ,the gravimetric and the coulometric method 锰铁、锰硅合金、氮化锰铁和金属锰 碳含量的测定 红外线吸收法、气体容量法、重量法和库仑法 |
China National Standards and |
English PDF |
| GB/T 5686.4-2008 |
Ferromanganese , ferromanganese-silicon , itrogen-bearing ferromanganese and manganese metal - Determination of phosphorus content - Molybdenum blue photometric method and alkali content titrimetric method 锰铁、锰硅合金、氮化锰铁和金属锰 磷含量的测定 钼蓝光度法和碱量滴定法 |
China National Standards and |
English PDF |
| GB/T 5686.2-2008 |
Ferromanganese，ferromanganese-silicon , nitrogen-bearing ferromanganese and manganese metal - Determination of silicon content - Molybdenum blue photometric method ，silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimet 锰铁、锰硅合金、氮化锰铁和金属锰 硅含量的测定 钼蓝光度法、氟硅酸钾滴定法和高氯酸重量法 |
China National Standards and |
English PDF |
| GB/T 5686.1-2008 |
Ferromanganese，ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal - Determination of manganese content - Potentiometric method and titrimetric mothod after ammonium nitrate & perchloric acid oxidation 锰铁、锰硅合金、氮化锰铁和金属锰 锰含量的测定 电位滴定法、硝酸铵氧化滴定法及高氯酸氧化滴定法 |
China National Standards and |
English PDF |
| GB/T 4702.5-2008 |
Chromium metal - Determination of aluminium content - EDTA titrimetric method and flame atomic absorption spectrometric method 金属铬 铝含量的测定 乙二胺四乙酸二钠滴定法和火焰原子吸收光谱法 |
China National Standards and |
English PDF |
| GB/T 4702.4-2008 |
Chromium metal - Determination of iron content - EDTA titrimetric method and flame atomic absorption spectrometric method 金属铬 铁含量的测定 乙二胺四乙酸二钠滴定法和火焰原子吸收光谱法 |
China National Standards and |
English PDF |
| GB/T 4702.16-2008 |
Chromium metal - Determination of sulfur content - Infrared absorption method and combustion-neutralization titration method 金属铬 硫含量的测定 红外线吸收法和燃烧中和滴定法 |
China National Standards and |
English PDF |
| GB/T 4701.4-2008 |
Ferrotitanium - Determinatino of manganese content - Arsenite-salt and sodium-salt titrimetric method and periodate photometric method 钛铁 锰含量的测定 亚砷酸盐 亚硝酸盐滴定法和高碘酸盐光度法 |
China National Standards and |
English PDF |
| GB/T 4701.10-2008 |
Ferrotitanium - Determination of sulfur content - Infrared absorption method and combustion-neutralization titration method 钛铁 硫含量的测定 红外线吸收法和燃烧中和滴定法 |
China National Standards and |
English PDF |
| GB/T 4699.6-2008 |
Ferrochromium and silicochromium - Determination of sulfur content - The infrared absorption method and the combustion-titration method 铬铁和硅铬合金 硫含量的测定 红外线吸收法和燃烧中和滴定法 |
China National Standards and |
English PDF |
| GB/T 4699.4-2008 |
Ferrochromium and silicochromium - Determination of carbon content - Infrared absorption method and gravimetric method 铬铁和硅铬合金 碳含量的测定 红外线吸收法和重量法 |
China National Standards and |
English PDF |
| GB/T 4699.2-2008 |
Ferrochromium and ferrosilicochromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method 铬铁和硅铬合金 铬含量的测定 过硫酸铵氧化滴定法和电位滴定法 |
China National Standards and |
English PDF |
| GB/T 4162-2008 |
Forged and rolled steel bars - Method for ultrasonic testing 锻轧钢棒超声检测方法 |
China National Standards and |
English PDF |
| GB/T 3654.6-2008 |
Ferroniobium - Determination of sulfur content - Combustion-iodate titrimetric method，methylene blue photometric method and infrared absorption method 铌铁 硫含量的测定 燃烧碘量法、次甲基蓝光度法和红外线吸收法 |
China National Standards and |
English PDF |
| GB/T 223.9-2008 |
Iron, steel and alloy - Determination of aluminium content - Chrom azurol S photometric method 钢铁及合金 铝含量的测定 铬天青S分光光度法 |
China National Standards and |
English PDF |
| GB/T 223.75-2008 |
Iron,steel and alloy - Determination of boron content - Methanol distillation-curcumin photometric method 钢铁及合金 硼含量的测定 甲醇蒸馏-姜黄素光度法 |
China National Standards and |
English PDF |
| GB/T 223.73-2008 |
Iron, steel and alloy - Determination of iron contents - Titanium trichloride-potassium dichromate titration method 钢铁及合金 铁含量的测定 三氯化钛-重铬酸钾滴定法 |
China National Standards and |
English PDF |
| GB/T 223.72-2008 |
Iron, steel and alloy - Determination of sulfur content - Gravimetric method 钢铁及合金 硫含量的测定 重量法 |
China National Standards and |
English PDF |
| GB/T 223.70-2008 |
Iron, steel and alloy - Determination of iron contents - O-phenanthroline spectrophotometric method 钢铁及合金 铁含量的测定 邻二氮杂菲分光光度法 |
China National Standards and |
English PDF |
| GB/T 223.69-2008 |
Iron, steel and alloy - Determination of carbon contents - Gas-volumetric method after combustion in the pipe furnace 钢铁及合金 碳含量的测定 管式炉内燃烧后气体容量法 |
China National Standards and |
English PDF |
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