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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/T 17646-2013 |
Design requiremEnts for small wind turbines 小型风力发电机组 设计要求 |
China National Standards En |
 English PDF |
| GB/T 50848-2013 |
DocumEntation standard for engineering construction project design in mechanical industry 机械工业工程建设项目设计文件编制标准 |
China National Standards En |
English PDF |
| GB 50264-2013 |
Code for design of industrial equipmEnt and pipeline insulation engineering 工业设备及管道绝热工程设计规范 |
China National Standards En |
English PDF |
| GB 19430-2013 |
EffluEnt standards of water pollutants for citric acid industry 柠檬酸工业水污染物排放标准 |
China National Standards En |
English PDF |
| GB/T 50780-2013 |
Terminology standard of electronics Engineering construction 电子工程建设术语标准 |
China National Standards En |
English PDF |
| GB/T 50770-2013 |
Code for design of safety instrumEnted system in petrochemical engineering 石油化工安全仪表系统设计规范 |
China National Standards En |
English PDF |
| GB/T 29493.1-2013 |
Determination of harmful substances in textile dyeing and finishing auxiliaries - Part 1: Determination of polybrominated biphEnyl and polybrominated diphenyl ethers GC/MS method 纺织染整助剂中有害物质的测定 第1部分： 多溴联苯和多溴二苯醚的测定 气相色谱-质谱法 |
China National Standards En |
English PDF |
| GB/Z 25320.5-2013 |
Power systems managemEnt and associated information exchange - Data and communications security - Part 5: Security for GB/T 18657 and derivatives 电力系统管理及其信息交换 数据和通信安全 第5部分：GB/T 18657等及其衍生标准的安全 |
China National Standards En |
English PDF |
| GB/Z 25320.2-2013 |
Power systems managemEnt and associated information exchange - Data and communications security - Part 2: Glossary of terms 电力系统管理及其信息交换 数据和通信安全 第2部分：术语 |
China National Standards En |
English PDF |
| GB/T 5008.2-2013 |
Lead-acid starter batteries - Part 2: DimEnsions of batteries and dimensions and marking of terminals 起动用铅酸蓄电池 第2部分：产品品种规格和端子尺寸、标记 |
China National Standards En |
English PDF |
| GB/T 4960.9-2013 |
Glossary of nuclear sciEnce and technology terms - Part 9：Magnetic confinement fusion 核科学技术术语 第9部分：磁约束核聚变 |
China National Standards En |
English PDF |
| GB/T 29489-2013 |
lnductive load switching of high-voltage alternating currEnt switchgear and controlgear 高压交流开关设备和控制设备的感性负载开合 |
China National Standards En |
English PDF |
| GB/T 29488-2013 |
Medium/high-power Biogas gEnerating set 中大功率沼气发电机组 |
China National Standards En |
English PDF |
| GB/T 29487-2013 |
Medium/high-power mine gas gEnerating set 中大功率瓦斯发电机组 |
China National Standards En |
English PDF |
| GB/T 29486-2013 |
Adjustable frequEncy converter for household and similar use - Terminology 家用和类似用途变频控制器 术语 |
China National Standards En |
English PDF |
| GB/T 29483-2013 |
Electrical safety of machinery - Application of protective equipmEnt to detect the presence of persons 机械电气安全 检测人体存在的保护设备应用 |
China National Standards En |
English PDF |
| GB/T 29482.1-2013 |
Numerical control system of industrial machines - Part 1: GEneral requipments 工业机械数字控制系统 第1部分：通用技术条件 |
China National Standards En |
English PDF |
| GB/T 29480-2013 |
Safety guideline for accessible electrical equipmEnts 接近电气设备的安全导则 |
China National Standards En |
English PDF |
| GB/T 20840.5-2013 |
InstrumEnt transformers - Part 5: Additional requirements for capacitor voltage transformers 互感器 第5部分：电容式电压互感器的补充技术要求 |
China National Standards En |
English PDF |
| GB/T 13539.6-2013 |
Low-voltage fuses - Part 6: SupplemEntary requirements for fuse-links for the protection of solar photovoltaic energy systems 低压熔断器 第6部分：太阳能光伏系统保护用熔断体的补充要求 |
China National Standards En |
English PDF |
| GB/T 29490-2013 |
Enterprise intellectual property management 企业知识产权管理规范 |
China National Standards En |
English PDF |
| GB 50868-2013 |
Standard for allowable vibration of building Engineering 建筑工程容许振动标准 |
China National Standards En |
English PDF |
| GB/T 50853-2013 |
Code of urban communication Engineering planning 城市通信工程规划规范 |
China National Standards En |
English PDF |
| GB/T 50812-2013 |
Code for design of steam condEnsate system in chemical plant 化工厂蒸汽凝结水系统设计规范 |
China National Standards En |
English PDF |
| GB/T 50266-2013 |
Standard for test methods of Engineering rock mass 工程岩体试验方法标准 |
China National Standards En |
English PDF |
| GB 50881-2013 |
Architectural and technical code for cEnter for disease control and prevention 疾病预防控制中心建筑技术规范 |
China National Standards En |
English PDF |
| GB/T 50839-2013 |
Technical code of urban rail transit Engineering safety control 城市轨道交通工程安全控制技术规范 |
China National Standards En |
English PDF |
| GB/T 50824-2013 |
Design standard for Energy efficiency of rural residential buildings 农村居住建筑节能设计标准 |
China National Standards En |
English PDF |
| GB 50330-2013 |
Technical code for building slope Engineering 建筑边坡工程技术规范 |
China National Standards En |
English PDF |
| GB 50300-2013 |
Unified standard for constructional quality acceptance of building Engineering 建筑工程施工质量验收统一标准 |
China National Standards En |
English PDF |
| GB/T 30440.1-2013 |
Specification for product of amusemEnt game—Part 1：General requirement 游戏游艺机产品规范 第1部分：通用要求 |
China National Standards En |
English PDF |
| GB 29337-2012 |
GEneral labeling for oral care and cleansing products 口腔清洁护理用品通用标签 |
China National Standards En |
English PDF |
| GB 29281-2012 |
Safety requiremEnts for playpens and similar cribs 游戏围栏及类似用途童床的安全要求 |
China National Standards En |
English PDF |
| GB 7247.1-2012 |
Safety of laser products - Part 1: EquipmEnt classification and requirements 激光产品的安全 第1部分：设备分类、要求 |
China National Standards En |
English PDF |
| GB 4943.23-2012 |
Information technology equipmEnt - Safety - Part 23: Large data storage equipment 信息技术设备 安全 第23部分：大型数据存储设备 |
China National Standards En |
English PDF |
| GB 29303-2012 |
Switched protective earth portable residual currEnt devices for class Ⅰ and battery powered vehicle applications 用于Ⅰ类和电池供电车辆的可开闭保护接地移动式剩余电流装置(SPE-PRCD) |
China National Standards En |
English PDF |
| GB 29280-2012 |
Information technology - Tibetan ideogram coded character set (extEnsion set B) - 24×48 dot matrix font - Bkav bstan bold 信息技术 藏文编码字符集(扩充集B) 24×48点阵字型 甘丹黑体 |
China National Standards En |
English PDF |
| GB 29279-2012 |
Information technology - Tibetan ideogram coded character set (extEnsion set B) - 24×48 dot matrix font - Bkav bstan lean 信息技术 藏文编码字符集(扩充集B) 24×48点阵字型 甘丹白体 |
China National Standards En |
English PDF |
| GB 29278-2012 |
Information technology - Tibetan ideogram coded character set (extEnsion set B) - 16×32 dot matrix font - Bkav bstan bold 信息技术 藏文编码字符集(扩充集B) 16×32点阵字型 甘丹黑体 |
China National Standards En |
English PDF |
| GB 29277-2012 |
Information technology - Tibetan ideogram coded character set (extEnsion set B) - 16×32 dot matrix font - Bkav bstan lean 信息技术 藏文编码字符集(扩充集B) 16×32点阵字型 甘丹白体 |
China National Standards En |
English PDF |
| GB 29276-2012 |
Information technology - Tibetan ideogram coded character set (basic set & extEnsion set A) - 24×48 dot matrix font - Bkav bstan bold 信息技术 藏文编码字符集(基本集及扩充集A) 24×48点阵字型 甘丹黑体 |
China National Standards En |
English PDF |
| GB 29275-2012 |
Information technology - Tibetan ideogram coded character set (basic set & extEnsion set A) - 24×48 dot matrix font - Bkav bstan lean 信息技术 藏文编码字符集(基本集及扩充集A) 24×48点阵字型 甘丹白体 |
China National Standards En |
English PDF |
| GB 29274-2012 |
Information technology - Tibetan ideogram coded character set (basic set & extEnsion set A) - 16×32 dot matrix font - Bkav bstan bold 信息技术 藏文编码字符集(基本集及扩充集A) 16×32点阵字型 甘丹黑体 |
China National Standards En |
English PDF |
| GB 29273-2012 |
Information technology - Tibetan ideogram coded character set (basic set & extEnsion set A) - 16×32 dot matrix font - Bkav bstan lean 信息技术 藏文编码字符集(基本集及扩充集A) 16×32点阵字型 甘丹白体 |
China National Standards En |
English PDF |
| GB 2099.2-2012 |
Plugs and socket-outlets for household and similar purposes - Part 2: Particular requiremEnts for socket-outlets for appliances 家用和类似用途插头插座 第2部分：器具插座的特殊要求 |
China National Standards En |
English PDF |
| GB 20044-2012 |
Electrical accessories - Portable residual currEnt devices without integral overcurrent protection for household and similar use (PRCD) 电气附件 家用和类似用途的不带过电流保护的移动式剩余电流装置(PRCD) |
China National Standards En |
English PDF |
| GB 16915.2-2012 |
Switches for household and similar fixed electrical installations - Part 2-1: Particular requiremEnts - Electronic switches 家用和类似用途固定式电气装置的开关 第2-1部分：电子开关的特殊要求 |
China National Standards En |
English PDF |
| GB 15579.12-2012 |
Arc welding equipmEnt - Part 12: Coupling devices for welding cables 弧焊设备 第12部分：焊接电缆耦合装置 |
China National Standards En |
English PDF |
| GB 15579.11-2012 |
Arc welding equipmEnt - Part 11: Electrode holders 弧焊设备 第11部分：电焊钳 |
China National Standards En |
English PDF |
| GB 14048.1-2012 |
Low-voltage switchgear and controlgear - Part 1: GEneral rules 低压开关设备和控制设备 第1部分：总则 |
China National Standards En |
English PDF |
| GB 12668.3-2012 |
Adjustable speed electrical power drive systems - Part 3: EMC requiremEnts and specific test methods 调速电气传动系统 第3部分 :电磁兼容性要求及其特定的试验方法 |
China National Standards En |
English PDF |
| GB 11417.3-2012 |
Ophthalmic optics - Contact lEnses - Part 3：Soft contact lenses 眼科光学 接触镜 第3部分：软性接触镜 |
China National Standards En |
English PDF |
| GB 11417.2-2012 |
Ophthalmic optics - Contact lEnses - Part 2: Rigid contact lenses specification 眼科光学 接触镜 第2部分：硬性接触镜 |
China National Standards En |
English PDF |
| GB 18445-2012 |
CemEntitious capillary crystalline waterproofing materials 水泥基渗透结晶型防水材料 |
China National Standards En |
English PDF |
| GB 16914-2012 |
GEneral safety technique conditions of gas burning appliances 燃气燃烧器具安全技术条件 |
China National Standards En |
English PDF |
| GB/T 8545-2012 |
Die forgings of aluminium and aluminium alloy - DimEnsional tolerance and machining allowance 铝及铝合金模锻件的尺寸偏差及加工余量 |
China National Standards En |
English PDF |
| GB/T 8151.17-2012 |
Methods for chemical analysis of zinc concEntrates - Part 17：Determination of zinc content - Hydroxide precipitation and Na2EDTA titrimetric method 锌精矿化学分析方法 第17部分：锌量的测定 氢氧化物沉淀-Na2EDTA滴定法 |
China National Standards En |
English PDF |
| GB/T 8151.14-2012 |
Methods for chemical analysis of zinc concEntrates - Part 14： Determination of nickel content - The flame atomic absorption spectrometric method 锌精矿化学分析方法 第14部分：镍量的测定 火焰原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 8151.13-2012 |
Methods for chemical analysis of zinc concEntrates - Part 13： Determination of germanium content - Hydride generation-atomic fluorescence spectrometry and the phenyl fluorone spectrophptometric method 锌精矿化学分析方法 第13部分：锗量的测定 氢化物发生-原子荧光光谱法和苯芴酮分光光度法 |
China National Standards En |
English PDF |
| GB/T 8151.12-2012 |
Methods for chemical analysis of zinc concEntrates - Part 12： Determination of sliver content - The flame atomic absorption spectrometric method 锌精矿化学分析方法 第12部分：银量的测定 火焰原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 8151.1-2012 |
Methods for chemical analysis of zinc concEntrates - Part 1：Determination of zinc content - Precipitate separation-Na2EDTA titrimetric method and extractive separation-Na2EDTA titrimetric method 锌精矿化学分析方法 第1部分：锌量的测定 沉淀分离Na2EDTA滴定法和萃取分离Na2EDTA滴定法 |
China National Standards En |
English PDF |
| GB/T 8151.11-2012 |
Methods for chemical analysis of zinc concEntrates - Part 11： Determination of antimony content - Hydride generation-atomic fluorescence spectrometry 锌精矿化学分析方法 第11部分：锑量的测定 氢化物发生-原子荧光光谱法 |
China National Standards En |
English PDF |
| GB/T 8151.10-2012 |
Methods for chemical analysis of zinc concEntrates - Part 10：Determination of tin content - Hydride generation-atomic fluorescence spectrometry 锌精矿化学分析方法 第10部分：锡量的测定 氢化物发生-原子荧光光谱法 |
China National Standards En |
English PDF |
| GB/T 8107-2012 |
Hydraulic fluid power-Valves - Determination of pressure differEntial/flow characteristics 液压阀 压差-流量特性的测定 |
China National Standards En |
English PDF |
| GB/T 7936-2012 |
Hydraulic fluid power-positive displacemEnt pumps and motors - Determination of derived capacity 液压泵和马达 空载排量测定方法 |
China National Standards En |
English PDF |
| GB/T 8151.9-2012 |
Methods for chemical analysis of zinc concEntrates - Part 9： Determination of fluorine content - The ion selective electrode method 锌精矿化学分析方法 第9部分：氟量的测定 离子选择电极法 |
China National Standards En |
English PDF |
| GB/T 8151.8-2012 |
Methods for chemical analysis of zinc concEntrates - Part 8： Determination of cadmium content - The flame atomic absorption spectrometric method 锌精矿化学分析方法 第8部分：镉量的测定 火焰原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 8151.7-2012 |
Methods for chemical analysis of zinc concEntrates - Part 7： Determination of arsenic content - Hydride generation-atomic fluorescence spectrometry and the potassium bromate titrimetric method 锌精矿化学分析方法 第7部分：砷量的测定 氢化物发生-原子荧光光谱法和溴酸钾滴定法 |
China National Standards En |
English PDF |
| GB/T 8151.6-2012 |
Methods for chemical analysis of zinc concEntrates - Part 6： Determination of copper content - The flame atomic absorption spectrometric method 锌精矿化学分析方法 第6部分：铜量的测定 火焰原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 8151.5-2012 |
Methods for chemical analysis of zinc concEntrates - Part 5： Determination of lead content - The flame atomic absorption spectrometric method 锌精矿化学分析方法 第5部分：铅量的测定 火焰原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 8151.4-2012 |
Methods for chemical analysis of zinc concEntrates - Part 4： Determination of silicon dioxide content - Molybdenum blue spectrophotometry 锌精矿化学分析方法 第4部分：二氧化硅量的测定 钼蓝分光光度法 |
China National Standards En |
English PDF |
| GB/T 8151.3-2012 |
Methods for chemical analysis of zinc concEntrates - Part 3： Determination of iron content - Na2EDTA titrimetric method 锌精矿化学分析方法 第3部分：铁量的测定 Na2EDTA滴定法 |
China National Standards En |
English PDF |
| GB/T 8151.2-2012 |
Methods for chemical analysis of zinc concEntrates - Part 2：Determination of sulfur content - The combustion neutralization titrimetric method 锌精矿化学分析方法 第2部分：硫量的测定 燃烧中和滴定法 |
China National Standards En |
English PDF |
| GB/T 8151.20-2012 |
Methods for chemical analysis of zinc concEntrates - Part 20：Determination of copper,lead,iron,arsenic,cadmium antimony, calcium,magnesium contents - Inductively coupled plasma atomic emission spectrometry 锌精矿化学分析方法 第20部分：铜、铅、铁、砷、镉、锑、钙、镁量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards En |
English PDF |
| GB/T 8151.19-2012 |
Methods for chemical analysis of zinc sulfide concEntrates - Part 19：Determination of silver and gold contents - Fire assay and flame atomic absorption spectrometric method using scorification or cupellation 锌精矿化学分析方法 第19部分：金和银含量的测定 铅析或灰吹火试金和火焰原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 8151.18-2012 |
Methods for chemical analysis of zinc concEntrates - Part 18： Determination of zinc content - Ion-exchange/ Na2EDTA titrimetric method 锌精矿化学分析方法 第18部分：锌量的测定 离子交换-Na2EDTA滴定法 |
China National Standards En |
English PDF |
| GB/T 6003.2-2012 |
Test sieves - Technical requiremEnts and testing - Part 2: Test sieves of metal wire cloth 试验筛 技术要求和检验 第2部分：金属穿孔板试验筛 |
China National Standards En |
English PDF |
| GB/T 4436-2012 |
Wrought aluminum and aluminum alloy tubes - DimEnsions and deviations 铝及铝合金管材外形尺寸及允许偏差 |
China National Standards En |
English PDF |
| GB/T 4324.9-2012 |
Methods for chemical analysis of tungstEn - Part 9: Determination of cadmium content - Inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry 钨化学分析方法 第9部分：镉量的测定 电感耦合等离子体原子发射光谱法和火焰原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 4324.7-2012 |
Methods for chemical analysis of tungstEn - Part 7: Determination of cobalt content - Inductively coupled plasma atomic emission spectrometry 钨化学分析方法 第7部分：钴量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards En |
English PDF |
| GB/T 4324.6-2012 |
Methods for chemical analysis of tungstEn - Part 6: Determination of iron content-1,10-phenanthroline spectrophotometry 钨化学分析方法 第6部分：铁量的测定 邻二氮杂菲分光光度法 |
China National Standards En |
English PDF |
| GB/T 4324.5-2012 |
Methods for chemical analysis of tungstEn - Part 5: Determination of arsenic content - Hydrogenate atomic absorption spectrometry 钨化学分析方法 第5部分：砷量的测定 氢化物原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 4324.4-2012 |
Methods for chemical analysis of tungstEn - Part 4: Determination of antimony content - Hydrogenate atomic absorption spectrometry 钨化学分析方法 第4部分：锑量的测定 氢化物原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 4324.3-2012 |
Methods for chemical analysis of tungstEn - Part 3: Determination of tin content - Hydrogenate atomic absorption spectrometry 钨化学分析方法 第3部分：锡量的测定 氢化物原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 4324.28-2012 |
Methods for chemical analysis of tungstEn - Part 28: Determination of molybdenum content - The thioyanate spectrophotometry 钨化学分析方法 第28部分：钼量的测定 硫氰酸盐分光光度法 |
China National Standards En |
English PDF |
| GB/T 4324.27-2012 |
Methods for chemical analysis of tungstEn - Part 27:：Determination of carbon content - High frequency combustion-infrared absorption method 钨化学分析方法 第27部分：碳量的测定 高频燃烧红外吸收法 |
China National Standards En |
English PDF |
| GB/T 4324.26-2012 |
Methods for chemical analysis of tungstEn - Part 26: Determination of nitrogen content - Pulse heating inert gas fusion-thermal conductive method and the Nessler reagent spectrophotometry 钨化学分析方法 第26部分：氮量的测定 脉冲加热惰气熔融-热导法和奈氏试剂分光光度法 |
China National Standards En |
English PDF |
| GB/T 4324.25-2012 |
Methods for chemical analysis of tungstEn - Part 25: Determination of oxygen content - Pulse heating inert gas fusion-infrared absorption method 钨化学分析方法 第25部分：氧量的测定 脉冲加热惰气熔融-红外吸收法 |
China National Standards En |
English PDF |
| GB/T 4324.24-2012 |
Methods for chemical analysis of tungstEn - Part 24: Determination of phosphorus content - Molybdemum blue photometry 钨化学分析方法 第24部分：磷量的测定 钼蓝分光光度法 |
China National Standards En |
English PDF |
| GB/T 4324.23-2012 |
Methods for chemical analysis of tungstEn - Part 23: Determination of sulfur content - The combustion-conductometric titration and high frequency combustion-infrared absorption method 钨化学分析方法 第23部分：硫量的测定 燃烧电导法和高频燃烧红外吸收法 |
China National Standards En |
English PDF |
| GB/T 4324.22-2012 |
Methods for chemical analysis of tungstEn - Part 22: Determination of manganese content - Inductively coupled plasma atomic emission spectrometry 钨化学分析方法 第22部分：锰量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards En |
English PDF |
| GB/T 4324.2-2012 |
Methods for chemical analysis of tungstEn - Part 2: Determination of bismuth content - Hydrogenate atomic absorption spectrometry 钨化学分析方法 第2部分：铋量的测定 氢化物原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 4324.21-2012 |
Methods for chemical analysis of tungstEn - Part 21: Determination of chromium content - Inductively coupled plasma atomic emission spectrometry 钨化学分析方法 第21部分：铬量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards En |
English PDF |
| GB/T 4324.20-2012 |
Methods for chemical analysis of tungstEn - Part 20: Determination of vanadium content - Inductively coupled plasma atomic emission spectrometry 钨化学分析方法 第20部分：钒量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards En |
English PDF |
| GB/T 4324.19-2012 |
Methods for chemical analysis of tungstEn - Part 19: Determination of titanium content - The diantipyrylmethane photometric spectrophtometry 钨化学分析方法 第19部分：钛量的测定 二安替比林甲烷分光光度法 |
China National Standards En |
English PDF |
| GB/T 4324.18-2012 |
Methods for chemical analysis of tungstEn - Part 18: Determination of potassium content - Flame atomic absorption spectrometry 钨化学分析方法 第18部分：钾量的测定 火焰原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 4324.17-2012 |
Methods for chemical analysis of tungstEn - Part 17: Determination of sodium content - Flame atomic absorption spectrometry 钨化学分析方法 第17部分：钠量的测定 火焰原子吸收光谱法 |
China National Standards En |
English PDF |
| GB/T 4324.16-2012 |
Methods for chemical analysis of tungstEn - Part 16: Determination of loss content on ignition - Gravimetric method 钨化学分析方法 第16部分：灼烧损失量的测定 重量法 |
China National Standards En |
English PDF |
| GB/T 4324.14-2012 |
Methods for chemical analysis of tungstEn - Part 14: Determination of residue content after chloride volatility - Gravimetric method 钨化学分析方法 第14部分：氯化挥发后残渣量的测定 重量法 |
China National Standards En |
English PDF |
| GB/T 4324.12-2012 |
Methods for chemical analysis of tungstEn - Part 12: Determination of silicon content - Chlorization-molybdenum blue spectrophotometry 钨化学分析方法 第12部分：硅量的测定 氯化-钼蓝分光光度法 |
China National Standards En |
English PDF |
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