Cart:
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 19510.202-2023 |
Light source control devices Part 2-2: Special requirements for DC/AC electronic step-down converters for tungsten lamps {译} 光源控制装置 第2-2部分：钨丝灯用直流/交流电子降压转换器的特殊要求 |
China National Standards tungsten |
 English PDF |
| GB/T 14196.3-2023 |
Incandescent lamps safety regulations part 3: tungsten halogen lamps (for non-motor vehicles) {译} 白炽灯 安全规范 第3部分：卤钨灯（非机动车辆用） |
China National Standards tungsten |
English PDF |
| GB/T 14196.2-2023 |
Incandescent lamps - Safety regulations - Part 2: tungsten halogen lamps for general lighting in households and similar places {译} 白炽灯 安全规范 第2部分：家庭和类似场合普通照明用卤钨灯 |
China National Standards tungsten |
English PDF |
| GB/T 14196.1-2023 |
Incandescent lamps - Safety regulations - Part 1: tungsten filament lamps for general lighting in homes and similar places {译} 白炽灯 安全规范 第1部分：家庭和类似场合普通照明用钨丝灯 |
China National Standards tungsten |
English PDF |
| GB 29145-2023 |
Energy consumption limit per unit product of tungsten concentrate, molybdenum concentrate and roasted molybdenum concentrate {译} 钨精矿、钼精矿和焙烧钼精矿单位产品能源消耗限额 |
China National Standards tungsten |
English PDF |
| GB/T 7731.17-2023 |
Ferrotungsten - Determination of cobalt, nickel and aluminum content - Inductively coupled plasma atomic emission spectrometry {译} 钨铁 钴、镍、铝含量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.3-2023 |
Methods for chemical analysis of tungsten concentrates Part 3: Determination of phosphorus content Phosphomolybdenum yellow spectrophotometry and inductively coupled plasma atomic emission spectrometry {译} 钨精矿化学分析方法 第3部分：磷含量的测定 磷钼黄分光光度法和电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.1-2023 |
Methods for chemical analysis of tungsten concentrates Part 1: Determination of tungsten trioxide content Ammonium tungstate ignition gravimetric method {译} 钨精矿化学分析方法 第1部分：三氧化钨含量的测定 钨酸铵灼烧重量法 |
China National Standards tungsten |
English PDF |
| GB/T 4324.2-2023 |
Methods for chemical analysis of tungsten Part 2: Determination of bismuth and arsenic content {译} 钨化学分析方法 第2部分：铋和砷含量的测定 |
China National Standards tungsten |
English PDF |
| GB/T 26725-2023 |
Ultrafine tungsten carbide powder {译} 超细碳化钨粉 |
China National Standards tungsten |
English PDF |
| GB/T 26038-2023 |
tungsten-based high specific gravity alloy plate {译} 钨基高比重合金板材 |
China National Standards tungsten |
English PDF |
| GB/T 6150.15-2023 |
Methods for chemical analysis of tungsten concentrates Part 15: Determination of bismuth content Hydride generation atomic fluorescence spectrometry and flame atomic absorption spectrometry {译} 钨精矿化学分析方法 第15部分：铋含量的测定 氢化物发生原子荧光光谱法和火焰原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.12-2023 |
Methods for chemical analysis of tungsten concentrates Part 12: Determination of silica content Silicon-molybdenum blue spectrophotometry and gravimetric method {译} 钨精矿化学分析方法 第12部分：二氧化硅含量的测定 硅钼蓝分光光度法和重量法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.10-2023 |
Methods for chemical analysis of tungsten concentrates Part 10: Determination of lead content Hydride generation atomic fluorescence spectrometry and flame atomic absorption spectrometry {译} 钨精矿化学分析方法 第10部分：铅含量的测定 氢化物发生原子荧光光谱法和火焰原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.8-2023 |
Methods for chemical analysis of tungsten concentrates Part 8: Determination of molybdenum content Thiocyanate spectrophotometry {译} 钨精矿化学分析方法 第8部分：钼含量的测定 硫氰酸盐分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.6-2023 |
Methods for chemical analysis of tungsten concentrates Part 6: Determination of wet water content Gravimetric method {译} 钨精矿化学分析方法 第6部分：湿存水含量的测定 重量法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.4-2023 |
Chemical analysis methods for tungsten concentrates Part 4: Determination of sulfur content High-frequency induction infrared absorption method and combustion-iodometric method {译} 钨精矿化学分析方法 第4部分：硫含量的测定 高频感应红外吸收法和燃烧-碘量法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.18-2023 |
Methods for chemical analysis of tungsten concentrates - Part 18: Determination of barium content - Inductively coupled plasma atomic emission spectrometry {译} 钨精矿化学分析方法 第18部分：钡含量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 26416.6-2023 |
Methods for chemical analysis of rare earth iron alloys - Part 6: Determination of molybdenum, tungsten, titanium content - Inductively coupled plasma emission spectrometry {译} 稀土铁合金化学分析方法 第6部分：钼、钨、钛量的测定 电感耦合等离子体发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 26055-2022 |
Regenerated tungsten carbide powder {译} 再生碳化钨粉 |
China National Standards tungsten |
English PDF |
| GB/T 41338-2022 |
tungsten and Tungsten Alloy Powder for Additive Manufacturing {译} 增材制造用钨及钨合金粉 |
China National Standards tungsten |
English PDF |
| GB/T 3459-2022 |
tungsten bar {译} 钨条 |
China National Standards tungsten |
English PDF |
| GB/T 14352.24-2022 |
Methods for chemical analysis of tungsten ore and molybdenum ore - Part 24: Determination of germanium content - Inductively coupled plasma mass spectrometry {译} 钨矿石、钼矿石化学分析方法 第24部分：锗含量的测定 电感耦合等离子体质谱法 |
China National Standards tungsten |
English PDF |
| GB/T 13747.10-2022 |
Methods for chemical analysis of zirconium and zirconium alloys - Part 10: Determination of tungsten content - Thiocyanate spectrophotometry and inductively coupled plasma atomic emission spectrometry {译} 锆及锆合金化学分析方法 第10部分：钨含量的测定 硫氰酸盐分光光度法和电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.17-2022 |
Methods for chemical analysis of tungsten concentrates - Part 17: Determination of antimony content - Atomic fluorescence spectrometry {译} 钨精矿化学分析方法 第17部分：锑含量的测定 原子荧光光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.13-2022 |
Methods for chemical analysis of tungsten concentrates - Part 13: Determination of arsenic content - Atomic fluorescence spectrometry and DDTC-Ag spectrophotometry {译} 钨精矿化学分析方法 第13部分：砷含量的测定 原子荧光光谱法和DDTC-Ag分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.2-2022 |
Methods for chemical analysis of tungsten concentrates - Part 2: Determination of tin content - Potassium iodate titration and inductively coupled plasma atomic emission spectrometry {译} 钨精矿化学分析方法 第2部分：锡含量的测定 碘酸钾滴定法和电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 36917.4-2022 |
Dentistry - Laboratory cutting tools - Part 4: Microtungsten carbide cutting tools for laboratory use {译} 牙科学 技工室用刃具 第4部分：技工室用微型硬质合金刃具 |
China National Standards tungsten |
English PDF |
| GB/T 7731.5-2021 |
Ferrotungsten—Determination of silicon content—Silicomolybdenum blue spectrophotometric method 钨铁 硅含量的测定 硅钼蓝分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 7731.4-2021 |
Ferrotungsten—Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometric method 钨铁 磷含量的测定 磷钼蓝分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 7731.1-2021 |
Ferrotungsten—Determination of tungsten content—Cinchonine gravimetric method and ammonium nitrate gravimetric method 钨铁 钨含量的测定 辛可宁重量法和硝酸铵重量法 |
China National Standards tungsten |
English PDF |
| GB/T 7731.10-2021 |
Ferrotungsten—Determination of carbon content—Infrared absorption method 钨铁 碳含量的测定 红外线吸收法 |
China National Standards tungsten |
English PDF |
| GB/T 40067-2021 |
Microstructure and defect determination of tungsten carbide powder 碳化钨粉末微观组织及缺陷检测方法 |
China National Standards tungsten |
English PDF |
| GB/T 14352.22-2021 |
Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 22：Determination of antimony content -- Hydride generation atomic fluorescence spectrometry 钨矿石、钼矿石化学分析方法 第22部分：锑量的测定 氢化物发生-原子荧光光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 14352.21-2021 |
Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 21: Determination of arsenic content -- Hydride generation atomic fluorescence spectrometry 钨矿石、钼矿石化学分析方法 第21部分：砷量的测定 氢化物发生-原子荧光光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 14352.20-2021 |
Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 20：Determination of niobium，tantalum，zirconium，hafnium and 15 rare earth elements content -- Inductively coupled plasma mass spectrometry 钨矿石、钼矿石化学分析方法 第20部分：铌、钽、锆、铪及15个稀土元素量的测定 电感耦合等离子体质谱法 |
China National Standards tungsten |
English PDF |
| GB/T 14352.19-2021 |
Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 19: Determination of bismuth, cadmium, cobalt, copper, iron, lithium, nickel, phosphorus, lead, strontium, vanadium and zinc content -- Inductive-coupled plasma atomic emission spe 钨矿石、钼矿石化学分析方法 第19部分：铋、镉、钴、铜、铁、锂、镍、磷、铅、锶、钒和锌量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 4184-2021 |
tungsten-rhenium alloy wires 钨铼合金丝 |
China National Standards tungsten |
English PDF |
| GB/T 20975.35-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 35:Determination of tungsten content—Thiocyanate spectrophotometric method 铝及铝合金化学分析方法 第35部分：钨含量的测定 硫氰酸盐分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 38513-2020 |
Methods for chemical analysis of niobium hafnium alloys—Determination of hafnium,titanium,zirconium,tungsten,tantalum contents—Inductively coupled plasma atomic emission spectrometry 铌铪合金化学分析方法 铪、钛、锆、钨、钽等元素的测定 电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 39280-2020 |
Rods, wires and deposits for tungsten inert gas welding of non alloy and fine grain steels 钨极惰性气体保护电弧焊用非合金钢及细晶粒钢实心焊丝 |
China National Standards tungsten |
English PDF |
| GB/T 26726-2019 |
Ultrafine tungsten powder 超细钨粉 |
China National Standards tungsten |
English PDF |
| GB/T 4295-2019 |
tungsten carbide powder 碳化钨粉 |
China National Standards tungsten |
English PDF |
| GB/T 8320-2017 |
Copper-tungsten and silver-tungsten electrical contacts 铜钨及银钨电触头 |
China National Standards tungsten |
English PDF |
| GB/T 34498-2017 |
tungsten cathode materials for laser lamps 激光灯用钨阴极材料 |
China National Standards tungsten |
English PDF |
| GB/T 15076.5-2017 |
Methods for chemical analysis of tantalum and niobium—Part5:Determination of molybdenum and tungsten contents—Inductively coupled plasma atomic emission spectrometry 钽铌化学分析方法 第5部分：钼量和钨量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 2967-2017 |
Cast tungsten carbide powder 铸造碳化钨粉 |
China National Standards tungsten |
English PDF |
| GB/T 34503-2017 |
tungsten tubes 钨管 |
China National Standards tungsten |
English PDF |
| GB/T 1819.9-2017 |
Methods for chemical analysis of tin concentrates—Part 9：Determination of tungsten trioxide content—The thiocyanate spectrophotometric method 锡精矿化学分析方法 第9部分：三氧化钨量的测定 硫氰酸盐分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 4187-2017 |
tungsten bars and rods 钨条和钨杆 |
China National Standards tungsten |
English PDF |
| GB/T 4194-2017 |
Creep testing, high temperature treatment and metallographic examination of the tungsten wire 钨丝蠕变试验、高温处理及金相检查方法 |
China National Standards tungsten |
English PDF |
| GB/T 4185-2017 |
Molybdenum-tungsten alloy bars and rods 钼钨合金条及杆 |
China National Standards tungsten |
English PDF |
| GB/T 3875-2017 |
tungsten sheet 钨板 |
China National Standards tungsten |
English PDF |
| GB/T 4181-2017 |
tungsten wires 钨丝 |
China National Standards tungsten |
English PDF |
| GB/T 14094-2016 |
tungsten halogen lamps(non-vehicle) performance requirements 卤钨灯（非机动车辆用）性能要求 |
China National Standards tungsten |
English PDF |
| GB/T 32532-2016 |
Nonconsumable tungsten electrodes for arc welding and cutting 焊接与切割用钨极 |
China National Standards tungsten |
English PDF |
| GB/T 32386-2015 |
Gases for electronic industry—tungsten hexaflouride 电子工业用气体 六氟化钨 |
China National Standards tungsten |
English PDF |
| GB/T 31908-2015 |
tungsten electrodes for arc welding and plasma welding and cutting 电弧焊和等离子焊接、切割用钨电极 |
China National Standards tungsten |
English PDF |
| GB 31340-2014 |
The norm of energy consumption per unit products of tungsten concentrates 钨精矿单位产品能源消耗限额 |
China National Standards tungsten |
English PDF |
| GB 19212.10-2014 |
Safety of transformers,reactors, power supply units and combinations thereof―Part 10: Particular requirements and tests for transformers and power supply units for class Ⅲ handlamps for tungsten filament lamps 变压器、电抗器、电源装置及其组合的安全 第10部分:Ⅲ类手提钨丝灯用变压器和电源装置的特殊要求和试验 |
China National Standards tungsten |
English PDF |
| GB/T 14353.13-2014 |
Methods for chemical analysis of copper ores, lead ores and zinc ores―Part 13: Determination of gallium content、indium content、thallium content、tungsten content and molybdenum content 铜矿石、铅矿石和锌矿石化学分析方法 第13部分：镓量、铟量、铊量、钨量和钼量测定 |
China National Standards tungsten |
English PDF |
| GB 31276-2014 |
Minimum allowable values of energy efficiency and evaluating values of energy conservation of tungsten halogen lamp 普通照明用卤钨灯能效限定值及节能评价值 |
China National Standards tungsten |
English PDF |
| GB 30039-2013 |
Safety specification for tungsten carbide powder producing 碳化钨粉安全生产规程 |
China National Standards tungsten |
English PDF |
| GB/T 3648-2013 |
Ferrotungsten 钨铁 |
China National Standards tungsten |
English PDF |
| GB/T 4414-2013 |
Methods of sampling and sample preparation of tungsten concentrates in bags 包装钨精矿取样、制样方法 |
China National Standards tungsten |
English PDF |
| GB/T 29822-2013 |
tungsten-rhenium thermocouple wires and temperature-electromotive force(EMF) tables 钨铼热电偶丝及分度表 |
China National Standards tungsten |
English PDF |
| GB/T 29521-2013 |
Safety specification for underground mining of tungsten mine 钨矿山地下开采安全生产规范 |
China National Standards tungsten |
English PDF |
| GB/T 4325.26-2013 |
Methods for chemical analysis of molybdenum - Part 26: Determination of aluminium，magnesium，calcium，vanadium，chromium，manganese，iron，cobalt，nickel，copper，zinc，arsenic，cadmium ，tin，antimony，tungsten，lead and bismuth contents 钼化学分析方法 第26部分：铝、镁、钙、钒、铬、锰、铁、钴、镍、铜、锌、砷、镉、锡、锑、钨、铅和铋量的测定 电感耦合等离子体质谱法 |
China National Standards tungsten |
English PDF |
| GB/T 4325.24-2013 |
Methods for chemical analysis of molybdenum - Part 24: Determination of tungsten content - Inductively coupled plasma atomic emission spectrometry 钼化学分析方法 第24部分:钨量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
English PDF |
| GB/T 4324.1-2012 |
Methods for chemical analysis of tungsten - Part 1: Determination of lead content - Flame atomic absorption spectrometry 钨化学分析方法 第1部分：铅量的测定 火焰原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 4324.11-2012 |
Methods for chemical analysis of tungsten - Part 11: Determination of aluminum content - Inductively coupled plasma atomic emission spectrometry 钨化学分析方法 第11部分：铝量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 4324.10-2012 |
Methods for chemical analysis of tungsten - Part 10: Determination of copper content - Flame atomic absorption spectrometry 钨化学分析方法 第10部分：铜量的测定 火焰原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 26726-2011 |
superfine powder of tungsten 超细钨粉 |
China National Standards tungsten |
English PDF |
| GB/T 26725-2011 |
superfine powder of tungsten carbide 超细碳化钨粉 |
China National Standards tungsten |
English PDF |
| GB/T 26496-2011 |
Scraps of tungsten and tungsten alloys 钨及钨合金废料 |
China National Standards tungsten |
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 tungsten |
English PDF |
| GB/T 26055-2010 |
Reproduced tungsten carbide powder 再生碳化钨粉 |
China National Standards tungsten |
English PDF |
| GB/T 26052-2010 |
Tubular welding rods of tungsten carbide 硬质合金管状焊条 |
China National Standards tungsten |
English PDF |
| GB/T 26038-2010 |
tungsten base，high-density alloy plates 钨基高比重合金板材 |
China National Standards tungsten |
English PDF |
| GB/T 26023-2010 |
High precision tungsten plates of resisting ray 抗射线用高精度钨板 |
China National Standards tungsten |
English PDF |
| GB/T 26019-2010 |
Methods for chemical analysis of high impurity tungsten mineral - Determination of tungsten trioxide content - Twice separation and igniting gravimetric method 高杂质钨矿化学分析方法 三氧化钨量的测定 二次分离灼烧重量法 |
China National Standards tungsten |
English PDF |
| GB/T 14388-2010 |
tungsten carbide tipped circular saw blade for woodworking 木工硬质合金圆锯片 |
China National Standards tungsten |
English PDF |
| GB/T 14506.25-2010 |
Methods for chemical analysis of silicate rocks - Part 25: Determination of molybdenum and tungsten content 硅酸盐岩石化学分析方法 第25部分：钼和钨量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14353.10-2010 |
Methods for chemical analysis of copper ores, lead ores and zinc ores - Part 10: Determination of tungsten content 铜矿石、铅矿石和锌矿石化学分析方法 第10部分：钨量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.9-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 9：Determination of sulfur content 钨矿石、钼矿石化学分析方法 第9部分：硫量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.8-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 8：Determination of nickel content 钨矿石、钼矿石化学分析方法 第8部分：镍量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.7-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 7：Determination of cobalt content 钨矿石、钼矿石化学分析方法 第7部分：钴量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.6-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 6：Determination of cadmium content 钨矿石、钼矿石化学分析方法 第6部分：镉量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.5-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 5：Determination of zinc content 钨矿石、钼矿石化学分析方法 第5部分：锌量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.4-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 4：Determination of lead content 钨矿石、钼矿石化学分析方法 第4部分：铅量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.3-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 3：Determination of copper content 钨矿石、钼矿石化学分析方法 第3部分：铜量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.2-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 2：Determination of molybdenum content 钨矿石、钼矿石化学分析方法 第2部分：钼量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.18-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 18：Determination of rhenium content 钨矿石、钼矿石化学分析方法 第18部分：铼量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.17-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 17：Determination of tellurium content 钨矿石、钼矿石化学分析方法 第17部分：碲量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.16-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 16：Determination of selenium content 钨矿石、钼矿石化学分析方法 第16部分：硒量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.15-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 15：Determination of germanium content 钨矿石、钼矿石化学分析方法 第15部分：锗量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.14-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 14：Determination of gallium content 钨矿石、钼矿石化学分析方法 第14部分：镓量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.13-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 13：Determination of tin content 钨矿石、钼矿石化学分析方法 第13部分：锡量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.12-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 12：Determination of silver content 钨矿石、钼矿石化学分析方法 第12部分：银量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.1-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 1: Determination of tungsten content 钨矿石、钼矿石化学分析方法 第1部分：钨量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.11-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 11：Determination of bismuth content 钨矿石、钼矿石化学分析方法 第11部分：铋量测定 |
China National Standards tungsten |
English PDF |
| GB/T 14352.10-2010 |
Methods for chemical analysis of tungsten ores and molybdenum ores - Part 10：Determination of arsenic content 钨矿石、钼矿石化学分析方法 第10部分：砷量测定 |
China National Standards tungsten |
English PDF |
| GB/T 6150.9-2009 |
Methods for chemical analysis of tungsten concentrates - Determination of copper content - Flame atomic absorption spectrometry 钨精矿化学分析方法 铜量的测定 火焰原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.8-2009 |
Methods for chemical analysis of tungsten concentrates - Determination of molybdenum content - The thiocyanate spectrophotometry 钨精矿化学分析方法 钼量的测定 硫氰酸盐分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.3-2009 |
Methods for chemical analysis of tungsten concentrates - Determination of phosphorus content - The phosphorus molybdenum yellow spectrophotometry 钨精矿化学分析方法 磷量的测定 磷钼黄分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.16-2009 |
Methods for chemical analysis of tungsten concentrates - Determination of iron content - The sulfosalicylic acid spectrophotometry 钨精矿化学分析方法 铁量的测定 磺基水杨酸分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 10681-2009 |
tungsten filament lamps for domestic and similar general lighting purposes - Performance requirements 家庭和类似场合普通照明用钨丝灯 性能要求 |
China National Standards tungsten |
English PDF |
| GB/T 23272-2009 |
tungsten wire for lighting and electronic equipments 照明及电子设备用钨丝 |
China National Standards tungsten |
English PDF |
| GB 14196.2-2008 |
Incandescent lamps - Safety specifications - Part 2: tungsten halogen lamps for domestic and similar general lighting purposes 白炽灯安全要求 第2部分：家庭和类似场合普通照明用卤钨灯 |
China National Standards tungsten |
English PDF |
| GB 14196.1-2008 |
Incandescent lamps - Safety specifications - Part 1: tungsten filament lamps for domestic and similar general lighting purposes 白炽灯安全要求 第1部分：家庭和类似场合普通照明用钨丝灯 |
China National Standards tungsten |
English PDF |
| GB/T 7731.9-2008 |
Ferrotungsten - Determination of bismuth content - The bismuth iodide photometric method and inductively coupled plasma - atomic emission spectrometry 钨铁 铋含量的测定 碘化铋光度法和电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 7731.8-2008 |
Ferrotungsten - Determination of antimony content - The tetraethylrhodamine photometrie method and inductively coupled plasma-atomic emission spectrometry 钨铁 锑含量的测定 罗丹明B光度法和电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 7731.6-2008 |
Ferrotungsten - Determination of arsenic content - The molybdenum blue photometrie method and inductively coupled plasma-atomic emission spectrometry 钨铁 砷含量的测定 钼蓝光度法和电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 10417-2008 |
Specifications for steel-bonded tungsten carbides and determination of its transverse rupture strength, impact toughness and hardness 碳化钨钢结硬质合金技术条件及其力学性能的测试方法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.7-2008 |
Methods for chemical analysis of tungsten concentrates - Determination of tantalum content and niobium content - Inductively coupled plasma emission spectrometry and spectrophotometry 钨精矿化学分析方法 钽铌量的测定 等离子体发射光谱法和分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.2-2008 |
Methods for chemical analysis of tungsten concentrates - Determination of tin content - The potassium iodate volumetry and hydrogenate atomic absorption spectrometry 钨精矿化学分析方法 锡量的测定 碘酸钾容量法和氢化物原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.17-2008 |
Methods for chemical analysis of tungsten concentrates - Determination of antimony content - Hydride reduction atomic absorption spectrometry 钨精矿化学分析方法 锑量的测定 氢化物原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.13-2008 |
Methods for chemical analysis of tungsten concentrates - Determination of arsenic content - Hydride reduction atomic absorption spectrometry and the silver diethyldithiocarbamate(DDTC-Ag) photometry 钨精矿化学分析方法 砷量的测定 氢化物原子吸收光谱法和DDTC－Ag分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.12-2008 |
Methods for chemical analysis of tungsten concentrates－Determination of silicon dioxide content - The silicomolybdenum blue spectrophotometry and the gravimetry 钨精矿化学分析方法 二氧化硅量的测定 硅钼蓝分光光度法和重量法 |
China National Standards tungsten |
English PDF |
| GB 14196.3-2008 |
Incandescent lamps - Safety specifications - Part 3: tungsten-halogen lamps (non-vehicle) 白炽灯 安全要求 第3部分：卤钨灯(非机动车辆用) |
China National Standards tungsten |
English PDF |
| GB/T 4324.8-2008 |
Methods for chemical analysis of tungsten - Determination of nickel content - The inductively coupled plasma atomic emission spectrometry 、 flame atomic absorption spectrometry and dimethylglyoxime gravimetry 钨化学分析方法 镍量的测定 电感耦合等离子体原子发射光谱法、火焰原子吸收光谱法和丁二酮肟重量法 |
China National Standards tungsten |
English PDF |
| GB/T 4324.15-2008 |
Methods for chemical analysis of tungsten - Determination of magnesium content - The flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry 钨化学分析方法 镁量的测定 火焰原子吸收光谱法和电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 4324.13-2008 |
Methods for chemical analysis of tungsten - Determination of calcium content - The inductively coupled plasma atomic emission spectrometry 钨化学分析方法 钙量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 2967-2008 |
Cast tungsten carbide powder 铸造碳化钨粉 |
China National Standards tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
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 tungsten |
English PDF |
| GB/T 223.43-2008 |
Iron, steel and alloy - Determination of tungsten content - Gravimetryc method and spectrophotometric method 钢铁及合金 钨含量的测定 重量法和分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.6-2008 |
Methods for chemical analysis of tungsten concentrates - Determination hygroscopic moisture content - Gravimetric method 钨精矿化学分析方法 湿存水量的测定 重量法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.5-2008 |
Methods for chemical analysis of tungsten concentrates - Determination of calcium content - EDTA volumetric method and flame atomic absorption spectrometric method 钨精矿化学分析方法 钙量的测定 EDTA容量法和火焰原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.4-2008 |
Methods for chemical analysis of tungsten concentrates - Determination of sulfur content - The high frequency-infrared absorption method 钨精矿化学分析方法 硫量的测定 高频红外吸收法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.15-2008 |
Methods for chemical analysis of tungsten concentrates - Determination of bismuth content - Flame atomic absorption spectrometric method 钨精矿化学分析方法 铋量的测定 火焰原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.14-2008 |
Methods for chemical analysis of tungsten concentrates - Determination of manganese content - The ammonium ferrous sulfate volumetric method and flame atomic absorption spectrometric method 钨精矿化学分析方法 锰量的测定 硫酸亚铁铵容量法和火焰原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.1-2008 |
Methods for chemical analysis of tungsten concentrates - Determination of tungsten trioxide content - The ammonium tungstate igniting gravimetric method 钨精矿化学分析方法 三氧化钨量的测定 钨酸铵灼烧重量法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.11-2008 |
Methods for chemical analysis of tungsten concentrates - Determination of zinc content - Flame atomic absorption spectrometric method 钨精矿化学分析方法 锌量的测定 火焰原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 6150.10-2008 |
Methods for chemical analysis of tungsten concentrates - Determination of lead content - Flame atomic absorption spectrometric method 钨精矿化学分析方法 铅量的测定 火焰原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 4295-2008 |
tungsten carbide powder 碳化钨粉 |
China National Standards tungsten |
English PDF |
| GB/T 15072.17-2008 |
Test method of precious metal alloys - Determination of tungsten contents for platinum alloys - Tungstic acid gravimetry 贵金属合金化学分析方法 铂合金中钨量的测定 三氧化钨重量法 |
China National Standards tungsten |
English PDF |
| GB/T 7731.2-2007 |
Ferrotungsten - Determination of manganese content - The periodate spectrophotometric method and the flame atomic absorption spectrometric method 钨铁 锰含量的测定 高碘酸盐分光光度法和火焰原子吸收光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 3875-2006 |
tungsten sheet 钨板 |
China National Standards tungsten |
English PDF |
| GB/T 3459-2006 |
tungsten bars and rods 钨条 |
China National Standards tungsten |
English PDF |
| GB/T 3458-2006 |
tungsten Powder 钨粉 |
China National Standards tungsten |
English PDF |
| GB/T 20152-2006 |
Standard method of measuring the pinch temperature of quartz-tungsten-halogen lamps 石英卤钨灯压封部位温度的标准测量方法 |
China National Standards tungsten |
English PDF |
| GB/T 14094-2005 |
tungsten halogen lamps(non-vehicle)Performance requirements 卤钨灯(非机动车辆用)性能要求 |
China National Standards tungsten |
English PDF |
| GB/T 1819.9-2004 |
Methods for chemical analysis of tin concentrates--Determination of tungsten trioxide content--The thiocyanate spectrophotometric method 锡精矿化学分析方法 三氧化钨量的测定 硫氰酸盐分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 12690.13-2003 |
Chemical analysis methods for non-rareearth impurities of rare earth metals and their oxides--Determination of molybdenum and tungsten content--Induct-ively coupled plasma atomic emission spectrographic method and inductively coupled plasma mass spectrum 稀土金属及其氧化物中非稀土杂质化学分析方法 钼、钨量的测定 电感耦合等离子体发射光谱法和电感耦合等离子体质谱法 |
China National Standards tungsten |
English PDF |
| GB/T 8320-2003 |
Copper-tungsten and silver-tungsten electrical contacts 铜钨及银钨电触头 |
China National Standards tungsten |
English PDF |
| GB/T 4183-2002 |
Molybdenum-tungsten alloy wire 钼钨合金丝 |
China National Standards tungsten |
English PDF |
| GB/T 4186-2002 |
Molybdenum-tungsten alloy rods 钼钨合金杆 |
China National Standards tungsten |
English PDF |
| GB/T 4184-2002 |
tungsten-rhenium alloy wires 钨铼合金丝 |
China National Standards tungsten |
English PDF |
| GB/T 4181-1997 |
tungsten wires 钨丝 |
China National Standards tungsten |
English PDF |
| GB 16229-1996 |
Health standard for tungsten in the air of workplace 车间空气中钨卫生标准 |
China National Standards tungsten |
English PDF |
| GB/T 16104-1995 |
Workplace air--Determination of tungsten or tungsten carbide--Potassium thiocyanate-titanous trichloride spectrophotometric method 车间空气中钨或碳化钨的硫氰酸钾-三氯化钛分光光度测定方法 |
China National Standards tungsten |
English PDF |
| GB/T 15076.5-1994 |
Methods for chemical analysis of tantalum and niob-ium--Determination of molybdenum and tungsten contents 钽铌化学分析方法 钼量和钨量的测定 |
China National Standards tungsten |
English PDF |
| GB/T 15061-1994 |
General specifications for sensitometry of silver halide photographic materials--Part 1:Sensitometric exposure conditions of films to be exposured for incandescent tungsten and daylight 银盐感光材料感光测定通则 第1 部分:适用于白炽钨光和模拟日光曝光的试样曝光条件 |
China National Standards tungsten |
English PDF |
| GB/T 14501.3-1993 |
Spectrochemical determination of tungsten，molybdenum，niobium，titanium and zirconium in uranium hexafluoride 六氟化铀中钨、钼、铌、钛、锆的测定 化学光谱法 |
China National Standards tungsten |
English PDF |
| GB/T 13747.10-1992 |
Zirconium and zirconium alloys--Determination of tungsten content--Thiocyanate spectrophotometric method 锆及锆合金化学分析方法 硫氰酸盐分光光度法测定钨量 |
China National Standards tungsten |
English PDF |
| GB/T 11845-1989 |
Uranium dioxide powder and pellets--Determination of tungsten--Spectrophotometric method 二氧化铀粉末和芯块中钨的测定 分光光度法 |
China National Standards tungsten |
English PDF |
| GB/T 223.66-1989 |
Methods for chemical analysis of iron，steel and alloy--The thiocyanate chlorpromazine hydrochloride--chloro form extraction photometric method for the determination of tungsten content 钢铁及合金化学分析方法 硫氰酸盐-盐酸氯丙嗪-三氯甲烷萃取光度法测定钨量 |
China National Standards tungsten |
English PDF |
| GB/T 7731.10-1988 |
Methods for chemical analysis of ferrotungsten--The infrared absorption method for the determination of carbon content 钨铁化学分析方法 红外线吸收法测定碳量 |
China National Standards tungsten |
English PDF |
| GB/T 7731.5-1987 |
Methods for chemical analysis of ferrotungsten--The molybdenum blue photometric method for the determination of silicon content 钨铁化学分析方法 钼蓝光度法测定硅量 |
China National Standards tungsten |
English PDF |
| GB/T 7731.4-1987 |
Methods for chemical analysis of ferrotungsten--The molybdenum blue photometric method for the determination of phosphorus content 钨铁化学分析方法 钼蓝光度法测定磷量 |
China National Standards tungsten |
English PDF |
| GB/T 7731.1-1987 |
Methods for chemical analysis of ferrotungsten--The cinchonine gravimetric method for the determination of tungsten content 钨铁化学分析方法 辛可宁重量法测定钨量 |
China National Standards tungsten |
English PDF |
| GB/T 4197-1984 |
Method for measuring the average grain size of sintered bar and rod of tungsten molybdenum and alloys 钨钼及其合金的烧结坯条、棒材晶粒度测试方法 |
China National Standards tungsten |
English PDF |
| GB/T 4196-1984 |
Method for testing the density of tungsten and molybdenum bars 钨、钼条密度测定方法 |
China National Standards tungsten |
English PDF |
| GB/T 4195-1984 |
Method for measuring the distribution of the powder size of tungsten and molybdenum method by the balance for the fall of the particles 钨、钼粉末粒度分布测试方法(沉降天平法) |
China National Standards tungsten |
English PDF |
| GB/T 4194-1984 |
Creep testing，high temperature treatment and metallographic examination of the tungsten wires 钨丝蠕变试验、高温处理及金相检查方法 |
China National Standards tungsten |
English PDF |
| GB/T 4193-1984 |
Method for measuring the density of the fine wire and ribbon of tungsten and molybdenum used in electric light sources and vacuumtubes 电真空器件及电光源用细钨丝、钼丝和薄带密度的测试方法 |
China National Standards tungsten |
English PDF |
| GB/T 4192-1984 |
Method for the determination of the resistivity of tungsten and molybdenum used in electric light sources and vacuumtubes 电真空器件及电光源用钨、钼材料电阻率的测试方法 |
China National Standards tungsten |
English PDF |
| GB/T 4189-1984 |
Doped tungsten bars 掺杂钨条 |
China National Standards tungsten |
English PDF |
| GB/T 4187-1984 |
tungsten rods 钨杆 |
China National Standards tungsten |
English PDF |
| GB/T 4185-1984 |
Molybdenum-tungsten alloy bars 钼钨合金条 |
China National Standards tungsten |
English PDF |
| GB/T 3654.9-1983 |
Methods for chemical analysisof ferroniobium--The thiocyanate photometric method for the determination of tungsten content 铌铁化学分析方法 硫氰酸盐光度法测定钨量 |
China National Standards tungsten |
English PDF |
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