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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 50689-2011 |
Code for design of lightning protection and earthing engineering for telecommunicAtion bureaus(staions) 通信局(站)防雷与接地工程设计规范 |
China National Standards At |
 English PDF |
| GB 50684-2011 |
Code for design of wastewAter treatment and reuse in chemical industry 化学工业污水处理与回用设计规范 |
China National Standards At |
English PDF |
| GB 50672-2011 |
Code for process design of comprehensive sewage treAtment for iron and steel enterprises 钢铁企业综合污水处理厂工艺设计规范 |
China National Standards At |
English PDF |
| GB/T 50692-2011 |
Standard for compiling the design documents of nAtural gas treating plant projects 天然气处理厂工程建设项目设计文件编制标准 |
China National Standards At |
English PDF |
| GB 26406-2011 |
NAtional Food Safety Standard-Food Additives-Sodium copper chlorophyllin 食品安全国家标准 食品添加剂 叶绿素铜钠盐 |
China National Standards At |
English PDF |
| GB 26405-2011 |
NAtional Food Safety Standard-Food Additives-Lutein 食品安全国家标准 食品添加剂 叶黄素 |
China National Standards At |
English PDF |
| GB 26404-2011 |
NAtional Food Safety Standard-Food Additives-Erythritol 食品安全国家标准 食品添加剂 赤藓糖醇 |
China National Standards At |
English PDF |
| GB 26403-2011 |
NAtional Food Safety Standard-Food Additives-Tert-butyl hydroquinone 食品安全国家标准 食品添加剂 特丁基对苯二酚 |
China National Standards At |
English PDF |
| GB 26402-2011 |
NAtional Food Safety Standard-Food Additives-Potassium iodate 食品安全国家标准 食品添加剂 碘酸钾 |
China National Standards At |
English PDF |
| GB 26401-2011 |
NAtional Food Safety Standard-Food Additives-Arachidonic acid fat (fermentation) 食品安全国家标准 食品添加剂 花生四烯酸油脂（发酵法） |
China National Standards At |
English PDF |
| GB 26400-2011 |
NAtional Food Safety Standard-Food Additives-Docosahexaenoic acid fat (fermentation) 食品安全国家标准 食品添加剂 二十二碳六烯酸油脂（发酵法） |
China National Standards At |
English PDF |
| GB 50677-2011 |
Code for construction and acceptance of oxygen plant equipment installAtion engineering 空分制氧设备安装工程施工与质量验收规范 |
China National Standards At |
English PDF |
| GB 50654-2011 |
Unified standards for constructional quality acceptance of non-ferrous metals industrial installAtion engineering 有色金属工业安装工程质量验收统一标准 |
China National Standards At |
English PDF |
| GB 50645-2011 |
Code for construction quality acceptance of insulAtion in petrochemical engineering 石油化工绝热工程施工质量验收规范 |
China National Standards At |
English PDF |
| GB 50697-2011 |
Code for design of 1000kV substAtion 1000KV变电站设计规范 |
China National Standards At |
English PDF |
| GB 50667-2011 |
Code for installAtion and quality inspection of dyeing and finishing equipment 印染设备工程安装与质量验收规范 |
China National Standards At |
English PDF |
| GB/T 50664-2011 |
Code for installAtion and quality inspection of cotton textile machinery 棉纺织设备工程安装与质量验收规范 |
China National Standards At |
English PDF |
| GB 50682-2011 |
Technical code for pre-fabricAted united pipe risers 预制组合立管技术规范 |
China National Standards At |
English PDF |
| GB/T 50670-2011 |
Terminology standard for mechanical equipment installAtion 机械设备安装工程术语标准 |
China National Standards At |
English PDF |
| GB 14569.1-2011 |
Performance requirements for low and intermediAte level radioactive waste form - Cemented waste form 低、中水平放射性废物固化体性能要求 水泥固化体 |
China National Standards At |
English PDF |
| GB 50742-2012 |
Code for installAtion of mechanical equipment for steel-making 炼钢机械设备安装规范 |
China National Standards At |
English PDF |
| GB 4404.4-2010 |
Seeds of food crops － Part 4：OAts 粮食作物种子 第4部分：燕麦 |
China National Standards At |
English PDF |
| GB 4404.3-2010 |
Seeds of food crops － Part 3：BuckwheAt 粮食作物种子 第3部分：荞麦 |
China National Standards At |
English PDF |
| GB/T 5559-2010 |
Non-ionic surface active agents obtained from ethylene oxide and ethylene oxide/propylene oxide block copolymers - DeterminAtion of cloud point 环氧乙烷型及环氧乙烷-环氧丙烷嵌段聚合型非离子表面活性剂 浊点的测定 |
China National Standards At |
English PDF |
| GB/T 5551-2010 |
Surface active agents - DeterminAtion for total calcium ion and magnesium ion contents in dispersing agents 表面活性剂 分散剂中钙、镁离子总含量的测定方法 |
China National Standards At |
English PDF |
| GB/T 5549-2010 |
Surface active agents - DeterminAtion of surface tension by drawing up liquid films 表面活性剂 用拉起液膜法测定表面张力 |
China National Standards At |
English PDF |
| GB/T 4497.1-2010 |
Rubber - DeterminAtion of total sulfur content - Part 1：Oxygen combustion flask method 橡胶 全硫含量的测定 第1部分：氧瓶燃烧法 |
China National Standards At |
English PDF |
| GB/T 7381-2010 |
Surface active agents - DeterminAtion of stability in hard water 表面活性剂 在硬水中稳定性的测定方法 |
China National Standards At |
English PDF |
| GB/T 26324-2010 |
1-Hydroxyethylidene-1,1-diphosphonAte acid 羟基亚乙基二膦酸 |
China National Standards At |
English PDF |
| GB/T 26323-2010 |
Paints and varnishes - DeterminAtion of resistance to filiform corrosion on aluminium and aluminium alloys 色漆和清漆 铝及铝合金表面涂膜的耐丝状腐蚀试验 |
China National Standards At |
English PDF |
| GB/T 26322-2010 |
ExaminAtion of nitrite bacteria in industrial circulating cooling water - MPN test 工业循环冷却水中亚硝化菌的测定 MPN法 |
China National Standards At |
English PDF |
| GB/T 1690-2010 |
Rubber,vulcanized or thermoplastic - DeterminAtion of the effect of liquids 硫化橡胶或热塑性橡胶 耐液体试验方法 |
China National Standards At |
English PDF |
| GB 7947-2010 |
Basic and safety principles for man-machine interface,marking and identificAtion - Identification of conductors by colours or alphanumerics 人机界面标志标识的基本和安全规则 导体颜色或字母数字标识 |
China National Standards At |
English PDF |
| GB 18209.3-2010 |
Electrical safety of machinery - IndicAtion, marking and actuation - Part 3: Requirements for the location and operation of actuators 机械电气安全 指示、标志和操作 第3部分：操动器的位置和操作的要求 |
China National Standards At |
English PDF |
| GB 18209.2-2010 |
Electrical safety of machinery - IndicAtion, marking and actuation - Part 2: Requirements for marking 机械电气安全 指示、标志和操作 第2部分：标志要求 |
China National Standards At |
English PDF |
| GB 18209.1-2010 |
Electrical safety of machinery - IndicAtion, marking and actuation - Part 1: Requirements for visual, acoustic and tactile signals 机械电气安全 指示、标志和操作 第1部分：关于视觉、听觉和触觉信号的要求 |
China National Standards At |
English PDF |
| GB/T 3849.2-2010 |
Hardmetals - Rockwell hardness test (scale A) - Part 2: PreparAtion and calibration of standard test blocks 硬质合金 洛氏硬度试验（A标尺） 第2部分：标准试块的制备和校准 |
China National Standards At |
English PDF |
| GB/T 26417-2010 |
Chemical analysis methods of praseodymium-neodymium alloy and the compounds - DeterminAtion of REO relative contents 镨钕合金及其化合物化学分析方法 稀土配分量的测定 |
China National Standards At |
English PDF |
| GB/T 26416.5-2010 |
Chemical analysis methods of dysprosium ferroalloy - Part 5 :DeterminAtion of oxygen content - Impulse-infrared conductance absorption method 镝铁合金化学分析方法 第5部分：氧量的测定 脉冲红外吸收法 |
China National Standards At |
English PDF |
| GB/T 26416.4-2010 |
Chemical analysis methods of dysprosium ferroalloy - Part 4 :DeterminAtion of iron content - The Potassium dichromate titrimetry 镝铁合金化学分析方法 第4部分：铁量的测定 重铬酸钾容量法 |
China National Standards At |
English PDF |
| GB/T 26416.3-2010 |
Chemical analysis methods of dysprosium ferroalloy - Part 3 : DeterminAtion of calcium, magnesium, aluminum, silicon, nickel, molybdenum, and tungsten contents - Inductively coupled plasma atomic emission spectrometry 镝铁合金化学分析方法 第3部分：钙、镁、铝、硅、镍、钼、钨量的测定 等离子发射光谱法 |
China National Standards At |
English PDF |
| GB/T 26416.2-2010 |
Chemical analysis methods of dysprosium ferroalloy - Part 2 :DeterminAtion of rare earth impurity contents - Inductively coupled plasma atomic emission spectrometry 镝铁合金化学分析方法 第2部分：稀土杂质含量的测定 电感耦合等离子发射光谱法 |
China National Standards At |
English PDF |
| GB/T 26416.1-2010 |
Chemical analysis methods of dysprosium ferroalloy - Part 1 :DeterminAtion of total rare earth content - Gravimetry 镝铁合金化学分析方法 第1部分：稀土总量的测定 重量法 |
China National Standards At |
English PDF |
| GB/T 26412-2010 |
RE-base AB5 hydrogen storage alloy powder used in negAtive pole of nickel-metal hydride batteries 金属氢化物-镍电池负极用稀土系AB5型贮氢合金粉 |
China National Standards At |
English PDF |
| GB/T 26314-2010 |
DesignAtion and composition of zirconium and zirconium alloys 锆及锆合金牌号和化学成分 |
China National Standards At |
English PDF |
| GB/T 26312-2010 |
Gold for evaporAting 蒸发金 |
China National Standards At |
English PDF |
| GB/T 26310.5-2010 |
Carbonaceous mAterials used in the production of aluminium - Calclined coke - Part 5：Determination of residual hydrogen content 原铝生产用煅后石油焦检测方法 第5部分：残留氢含量的测定 |
China National Standards At |
English PDF |
| GB/T 26310.4-2010 |
Carbonaceous mAterials used in the production of aluminium - Calcined coke - Part 4：Determination of oil content - Method by solvent extraction 原铝生产用煅后石油焦检测方法 第4部分：油含量的测定 溶剂萃取法 |
China National Standards At |
English PDF |
| GB/T 26310.3-2010 |
Carbonaceous mAterials used in the production of aluminium - Calcined coke - Part 3：Determination of apparent oil content - Heating method 原铝生产用煅后石油焦检测方法 第3部分：表观油含量的测定 加热法 |
China National Standards At |
English PDF |
| GB/T 26297.1-2010 |
Sampling of carbonaceous mAterials used for aluminium production - Part 1: Cathode blocks 铝用炭素材料取样方法 第1部分：底部炭块 |
China National Standards At |
English PDF |
| GB/T 26296-2010 |
Defects for anodic oxide coAtings and organic polymer coatings on aluminum and its alloys 铝及铝合金阳极氧化膜和有机聚合物涂层缺陷 |
China National Standards At |
English PDF |
| GB/T 26295-2010 |
Carbonaceous mAterials used in the production of aluminium - Prebaked anodes and cathode blocks - Determination of flexural strength by the four-point method 铝电解用炭素材料 预焙阳极和阴极炭块 四点法测定抗折强度 |
China National Standards At |
English PDF |
| GB/T 26294-2010 |
Carbonaceous mAterials used in the production of aluminium - Cold-ramming paste - Determination of effective binder content and aggregate content by extraction with quinoline,and determination of aggregate size distribution 铝电解用炭素材料 冷捣糊中有效粘合剂含量、骨料含量及骨料粒度分布的测定 喹啉萃取法 |
China National Standards At |
English PDF |
| GB/T 26293-2010 |
Carbonaceous mAterials used in the production of aluminium - Cold and tepid ramming paste - Determination of rammability of unbaked paste 铝电解用炭素材料 冷捣糊和中温糊 未焙烧糊捣实性的测定 |
China National Standards At |
English PDF |
| GB/T 26292-2010 |
Gold-germanium evaportAtion material 金锗蒸发料 |
China National Standards At |
English PDF |
| GB/T 26289-2010 |
Methods for chemical analysis of high purity selenium － DeterminAtion of boron,aluminum,iron,zinc,arsenic，silver, tin，antimony，tellurium，mercury， magnesium,titanium,nickel,copper,gallium,cadmium,indium,lead and bismuth contents － Inductively 高纯硒化学分析方法 硼、铝、铁、锌、砷、银、锡、锑、碲、汞、镁、钛、镍、铜、镓、镉、铟、铅、铋量的测定 电感耦合等离子体质谱法 |
China National Standards At |
English PDF |
| GB/T 26287-2010 |
Aluminium alloys sacrificial anode for electrical wAter heater 电热水器用铝合金牺牲阳极 |
China National Standards At |
English PDF |
| GB/T 26286-2010 |
Current-carrying copper profiled plAte for electrolysis 电解用异型导电铜板 |
China National Standards At |
English PDF |
| GB/T 26282-2010 |
Measuring methods of heAt balance of cement rotary kiln 水泥回转窑热平衡测定方法 |
China National Standards At |
English PDF |
| GB/T 26281-2010 |
CalculAting methods for heat balance, heat efficiency and comprehensive energy consumption of cement rotary kiln 水泥回转窑热平衡、热效率、综合能耗计算方法 |
China National Standards At |
English PDF |
| GB/T 26310.2-2010 |
Carbonaceous mAterials used in the production of aluminium - Calcined coke - Part 2：Determination of trace elements content - Flame atomic absorption spectroscopy 原铝生产用煅后石油焦检测方法 第2部分：微量元素含量的测定 火焰原子吸收光谱法 |
China National Standards At |
English PDF |
| GB/T 26310.1-2010 |
Carbonaceous mAterials used in the production of aluminium - Calcined coke - Part 1：Determination of the density in xylene - Pkknometric method 原铝生产用煅后石油焦检测方法 第1部分：二甲苯中密度的测定 比重瓶法 |
China National Standards At |
English PDF |
| GB/T 26309-2010 |
Silver evaporAtion material 银蒸发料 |
China National Standards At |
English PDF |
| GB/T 26308-2010 |
ClassificAtion and specification for silver metal scraps 银废料分类和技术条件 |
China National Standards At |
English PDF |
| GB/T 26305-2010 |
The method for chemical of nickel oxide - DeterminAtion of nickel content - Electrolytic depositiono method 氧化镍化学分析方法 镍量的测定 电沉积法 |
China National Standards At |
English PDF |
| GB/T 26302-2010 |
Seamless copper and copper alloys tube for heAt pipe 热管用无缝铜及铜合金管 |
China National Standards At |
English PDF |
| GB/T 26298-2010 |
Hydrogen hexachloroplAtinum (Ⅳ) 氯铂酸 |
China National Standards At |
English PDF |
| GB/T 26297.6-2010 |
Sampling of carbonaceous mAterials used for aluminium production - Part 6: Cokes for electrodes 铝用炭素材料取样方法 第6部分：煅后石油焦 |
China National Standards At |
English PDF |
| GB/T 26297.5-2010 |
Sampling of carbonaceous mAterials used for aluminium production - Part 5: Pitch for electrodes 铝用炭素材料取样方法 第5部分：煤沥青 |
China National Standards At |
English PDF |
| GB/T 26297.4-2010 |
Sampling of carbonaceous mAterials used for aluminium production - Part 4: Cathodic pastes 铝用炭素材料取样方法 第4部分：阴极糊 |
China National Standards At |
English PDF |
| GB/T 26297.3-2010 |
Sampling of carbonaceous mAterials used for aluminium production - Part 3: Prebaked blocks 铝用炭素材料取样方法 第3部分：预焙阳极 |
China National Standards At |
English PDF |
| GB/T 26297.2-2010 |
Sampling of carbonaceous mAterials used for aluminium production - Part 2: Sidewall blocks 铝用炭素材料取样方法 第2部分：侧部炭块 |
China National Standards At |
English PDF |
| GB/T 18115.15-2010 |
Chemical analysis methods of rare earth impurities in rare earth metals and their oxides - Part 15: Lutetium - DeterminAtion of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytte 稀土金属及其氧化物中稀土杂质化学分析方法 第15部分：镥中镧、铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱和钇量的测定 |
China National Standards At |
English PDF |
| GB/T 18115.14-2010 |
Chemical analysis methods of rare earth impurities in rare earth metals and their oxides - Part 14 : Ytterbium - DeterminAtion of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, lu 稀土金属及其氧化物中稀土杂质化学分析方法 第14部分：镱中镧、铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镥和钇量的测定 |
China National Standards At |
English PDF |
| GB/T 18115.13-2010 |
Chemical analysis methods of rare earth impurities in rare earth metals and their oxides - Part 13: Thulium - DeterminAtion of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, ytterbium, lut 稀土金属及其氧化物中稀土杂质化学分析方法 第13部分：铥中镧、铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、镱、镥和钇量的测定 |
China National Standards At |
English PDF |
| GB/T 18114.9-2010 |
Chemical analysis methods of rare earth concentrAtes - Part 9：Determination of phosphorus pentoxide content - Phosphorus-bismuth-molybdenum blue spectrophotometry 稀土精矿化学分析方法 第9部分：五氧化二磷量的测定 磷铋钼蓝分光光度法 |
China National Standards At |
English PDF |
| GB/T 18114.8-2010 |
Chemical analysis methods of rare earth concentrAtes - Part 8: Determination of fifteen rare earth oxide relative contents - Inductively coupled plasma emission spectrometry 稀土精矿化学分析方法 第8部分：十五个稀土元素氧化物配分量的测定 电感耦合等离子发射光谱法 |
China National Standards At |
English PDF |
| GB/T 18114.7-2010 |
Chemical analysis methods of rare earth concentrAtes - Part 7：Determination of iron oxide content - Potassium dichromate titration 稀土精矿化学分析方法 第7部分：氧化铁量的测定 重铬酸钾滴定法 |
China National Standards At |
English PDF |
| GB/T 18114.6-2010 |
Chemical analysis methods of rare earth concentrAtes - Part 6：Determination of silicon oxide content 稀土精矿化学分析方法 第6部分：二氧化硅量的测定 |
China National Standards At |
English PDF |
| GB/T 18114.5-2010 |
Chemical analysis methods of rare earth concentrAtes - Part 5：Determination of aluminum oxide content - Inductively coupled plasma atomic emission spectrometry 稀土精矿化学分析方法 第5部分：氧化铝量的测定 电感耦合等离子体发射光谱法 |
China National Standards At |
English PDF |
| GB/T 18114.4-2010 |
Chemical analysis methods of rare earth concentrAtes - Part 4：Determination of niobium oxide, zirconium oxide and titanium oxide contents - Inductively coupled plasma atomic emission spectrometry 稀土精矿化学分析方法 第4部分：氧化铌、氧化锆、氧化钛量的测定 电感耦合等离子体发射光谱法 |
China National Standards At |
English PDF |
| GB/T 18114.3-2010 |
Chemical analysis methods of rare earth concentrAtes - Part 3：Determination of calcium oxide content 稀土精矿化学分析方法 第3部分：氧化钙量的测定 |
China National Standards At |
English PDF |
| GB/T 18114.2-2010 |
Chemical analysis method of rare earth concentrAtes - Part 2：Determination of oxide thorium content 稀土精矿化学分析方法 第2部分：氧化钍量的测定 |
China National Standards At |
English PDF |
| GB/T 18114.1-2010 |
Chemical analysis methods of rare earth concentrAtes - Part 1：Determination of total rare earth oxide contents - Gravimetry 稀土精矿化学分析方法 第1部分：稀土氧化物总量的测定 重量法 |
China National Standards At |
English PDF |
| GB/T 18114.11-2010 |
Chemical analysis methods of rare earth concentrAtes - Part 11：Determination of fluorine contentv - EDTA titration 稀土精矿化学分析方法 第11部分：氟量的测定 EDTA滴定法 |
China National Standards At |
English PDF |
| GB/T 18114.10-2010 |
Chemical analysis methods of rare earth concentrAtes - Part 10：Determination of water content - Gravimetry 稀土精矿化学分析方法 第10部分：水分的测定 重量法 |
China National Standards At |
English PDF |
| GB/T 18113-2010 |
HeAting element of lanthanum chromite at high temperature 铬酸镧高温电热元件 |
China National Standards At |
English PDF |
| GB/T 16477.5-2010 |
Chemical analysis methods of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy - Part 5: DeterminAtion of titanium content - Inductively coupled plasma atomic emission spectrometry 稀土硅铁合金及镁硅铁合金化学分析方法 第5部分：钛量的测定 电感耦合等离子体发射光谱法 |
China National Standards At |
English PDF |
| GB/T 16477.4-2010 |
Chemical analysis methods of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy - Part 4: DeterminAtion of silicon content 稀土硅铁合金及镁硅铁合金化学分析方法 第4部分：硅量的测定 |
China National Standards At |
English PDF |
| GB/T 16477.3-2010 |
Chemical analysis methods of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy - Part 3: DeterminAtion of magnesia content - Inductively coupled plasma atomic emission spectrometry 稀土硅铁合金及镁硅铁合金化学分析方法 第3部分：氧化镁含量的测定 电感耦合等离子体发射光谱法 |
China National Standards At |
English PDF |
| GB/T 16477.2-2010 |
Chemical analysis methods of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy - Part 2: DeterminAtion of calcium, magnesium and manganese contents - Inductively coupled plasma atomic emission spectrometry 稀土硅铁合金及镁硅铁合金化学分析方法 第2部分：钙、镁、锰量的测定 电感耦合等离子体发射光谱法 |
China National Standards At |
English PDF |
| GB/T 16477.1-2010 |
Chemical analysis methods of rare-earth ferrosilicon alloy and rare-earth ferrosilicon magnesium alloy - Part 1: DeterminAtion of total rare earth content 稀土硅铁合金及镁硅铁合金化学分析方法 第1部分：稀土总量的测定 |
China National Standards At |
English PDF |
| GB/T 12967.7-2010 |
Test methods for anodic oxidAtion coatings of aluminium and aluminium alloys - Part 7：Measurement of abrasion resistance of anodicoxidation coatings by sand falling test apparatus 铝及铝合金阳极氧化膜检测方法 第7部分：用落砂试验仪测定阳极氧化膜的耐磨性 |
China National Standards At |
English PDF |
| GB/T 12690.17-2010 |
Chemical analysis methods of non-rare earth impurities in rare earth metals and the oxides - Part 17：DeterminAtion of niobium and tantalum contents of rare earth metals 稀土金属及其氧化物中非稀土杂质化学分析方法 第17部分：稀土金属中铌、钽量的测定 |
China National Standards At |
English PDF |
| GB/T 12690.16-2010 |
Chemical analysis methods of non-rare earth impurities in rare earth metals and the oxides - Part 16: DeterminAtion of fluorine content - Ion selective electrode analysis 稀土金属及其氧化物中非稀土杂质化学分析方法 第16部分：氟量的测定 离子选择性电极法 |
China National Standards At |
English PDF |
| GB/T 12689.7-2010 |
Methods for chemical analysis of zinc and zinc alloys - Part 7：DeterminAtion of magnesium content - Flame atomic absorption spectrometric method 锌及锌合金化学分析方法 第7部分： 镁量的测定 火焰原子吸收光谱法 |
China National Standards At |
English PDF |
| GB/T 12689.1-2010 |
Methods for chemical analysis of zinc and zinc alloys - Part 1: DeterminAtion of aluminum content - Chromazurol S-polyethylene glycol octyl phenylether-cetylpyridine bromine spectrophotometry, Chromeazurol S spectrophotometric method and EDTA titrimetry 锌及锌合金化学分析方法 第1部分：铝量的测定 铬天青S-聚乙二醇辛基苯基醚-溴化十六烷基吡啶分光光度法、CAS分光光度法和EDTA滴定法 |
China National Standards At |
English PDF |
| GB/T 9124-2010 |
SpecificAtion for steel pipe flanges 钢制管法兰 技术条件 |
China National Standards At |
English PDF |
| GB/T 9122-2010 |
Loose plAte steel pipe flanges with lapped pipe end、pressed collar and pressed collar with long neck 翻边环板式松套钢制管法兰 |
China National Standards At |
English PDF |
| GB/T 9121-2010 |
Loose plAte steel pipe flanges with weld-on collar 平焊环板式松套钢制管法兰 |
China National Standards At |
English PDF |
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