China National Standards

China tungsten GB Standards List


  •  China "tungsten" GB Standards List:
  • 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

    Find out:196Items   |  To Page of: First -Previous-Next -Last  | 1

     

    +86-755-25831330        sales@gbstandards.org 
    106# Zhongmao Mansion,No.1 Beizhan Road,Shenzhen,China
    ©  RJS Copyright  2001-2024 All Rights Reserved

    - Since 2001 -
    Focus on China Standards & Compliance Services

    www.rjs.cn

    China Licenses

    www.transcustoms.com

    China HS code & Tariff

    www.gbstandards.org

    China National Standards