China metals GB Standards Search

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.

China "metals" GB Standards List:

Standard Code	Standard Title	Standard Class	Order
GB/T 43604.1-2023	Methods for chemical analysis of gallium-based liquid metals Part 1: Determination of lead, cadmium, mercury and arsenic contents Inductively coupled plasma mass spectrometry 镓基液态金属化学分析方法第1部分：铅、镉、汞、砷含量的测定电感耦合等离子体质谱法	China National Standards metals	English PDF
GB/T 43569-2023	Jewelry and Precious metals Sampling of Precious Metals and Their Alloys 首饰和贵金属贵金属及其合金的取样	China National Standards metals	English PDF
GB 43352-2023	Express packaging heavy metals and specific substance limits 快递包装重金属与特定物质限量	China National Standards metals	English PDF
GB/T 18115.6-2023	Methods for chemical analysis of rare earth impurities in rare earth metals and their oxides - Part 6: Determination of the amounts of lanthanum, cerium, praseodymium, neodymium, samarium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium in europium 稀土金属及其氧化物中稀土杂质化学分析方法第6部分：铕中镧、铈、镨、钕、钐、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定	China National Standards metals	English PDF
GB/T 25774.1-2023	Examination of welding materials Part 1: Preparation of mechanical properties specimens of steel, nickel and nickel alloy deposited metals 焊接材料的检验第1部分：钢、镍及镍合金熔敷金属力学性能试样的制备	China National Standards metals	English PDF
GB/T 43118-2023	Corrosion of metals and alloys Test method for high-temperature corrosion of metallic materials under the action of deposits of salt, ash or other substances 金属和合金的腐蚀金属材料在盐、灰烬或其他物质的沉积物作用下进行高温腐蚀的试验方法	China National Standards metals	English PDF
GB/T 42913-2023	Corrosion of metals and alloys Test methods for high-temperature corrosion of metallic materials embedded in salt, ash or other solids 金属和合金的腐蚀金属材料嵌入在盐、灰烬或其他固体中的高温腐蚀试验方法	China National Standards metals	English PDF
GB/T 42912-2023	Corrosion of metals and alloys Test methods for high-temperature corrosion of metallic materials under static immersion in molten salts or other liquids 金属和合金的腐蚀金属材料在静态浸入熔盐或其他液体条件下的高温腐蚀试验方法	China National Standards metals	English PDF
GB/T 42904-2023	Corrosion of metals and alloys Seawater pipeline dynamic corrosion test 金属和合金的腐蚀海水管路动水腐蚀试验	China National Standards metals	English PDF
GB/T 42672-2023	Corrosion of metals and alloys - Methods for monitoring environmental factors in surface seawater exposure tests 金属和合金的腐蚀表层海水暴露试验环境因素监测方法	China National Standards metals	English PDF
GB/T 42661-2023	Corrosion of metals and alloys Test method for stress corrosion susceptibility of steel bars in simulated marine environment 金属和合金的腐蚀模拟海洋环境中钢筋应力腐蚀敏感性试验方法	China National Standards metals	English PDF
GB/T 17899-2023	Corrosion of metals and alloys Potentiometric method for measuring the pitting corrosion potential of stainless steel in sodium chloride solution 金属和合金的腐蚀不锈钢在氯化钠溶液中点蚀电位的动电位测量方法	China National Standards metals	English PDF
GB/T 5776-2023	Corrosion of metals and alloys Guidelines for exposure and evaluation of metals and alloys in surface seawater 金属和合金的腐蚀金属和合金在表层海水中暴露和评定的导则	China National Standards metals	English PDF
GB/T 41653-2022	Corrosion of metals and alloys - Anodic test method for susceptibility to intergranular corrosion of heat-treated aluminum alloys 金属和合金的腐蚀热处理铝合金晶间腐蚀敏感性阳极试验方法	China National Standards metals	English PDF
GB/T 41654-2022	Corrosion of metals and alloys - Method for metallographic examination of specimens after exposure to high temperature corrosive environments 金属和合金的腐蚀在高温腐蚀环境下暴露后试样的金相检验方法	China National Standards metals	English PDF
GB/T 10123-2022	Corrosion terminology of metals and alloys 金属和合金的腐蚀术语	China National Standards metals	English PDF
GB/T 17473.7-2022	Test methods of precious metals pastes used for microelectronics—Part 7: Determination of solderability and solder leaching resistance 微电子技术用贵金属浆料测试方法第7部分：可焊性、耐焊性测定	China National Standards metals	English PDF
GB/T 16886.15-2022	Biological Evaluation of Medical Devices-Part 15: Qualitative and Quantitative Degradation Products of metals and Alloys 医疗器械生物学评价第15部分：金属与合金降解产物的定性与定量	China National Standards metals	English PDF
GB/T 15970.11-2022	Corrosion of metals and alloys - Stress corrosion testing - Part 11: Guidelines for hydrogen embrittlement and hydrogen-induced cracking tests of metals and alloys 金属和合金的腐蚀应力腐蚀试验第11部分:金属和合金氢脆和氢致开裂试验指南	China National Standards metals	English PDF
GB/T 41951-2022	Corrosion of metals and alloys - Test method for corrosion resistance of steel connecting parts and steel components for construction 金属和合金的腐蚀建筑用钢连接部件及钢构件耐腐蚀性能测试方法	China National Standards metals	English PDF
GB/T 12690.1-2022	Chemical analysis methods for non-rare earth impurities in rare earth metals and their oxides—Part 1: Determination of carbon and sulfur content—High frequency-infrared absorption method 稀土金属及其氧化物中非稀土杂质化学分析方法第1部分：碳、硫量的测定高频-红外吸收法	China National Standards metals	English PDF
GB/T 41079.2-2022	Methods for Determination of Physical Properties of Liquid metals Part 2: Determination of Electrical Conductivity 液态金属物理性能测定方法第2部分：电导率的测定	China National Standards metals	English PDF
GB/T 41756-2022	Corrosion of metals and alloys - Method for assessing resistance to atmospheric corrosion of low alloy steels 金属和合金的腐蚀低合金钢耐大气腐蚀评估方法	China National Standards metals	English PDF
GB/T 40403-2021	Corrosion of metals and alloys—Methodology for determining the resistance of metals to stress corrosion cracking using the four-point bend method 金属和合金的腐蚀用四点弯曲法测定金属抗应力腐蚀开裂的方法	China National Standards metals	English PDF
GB/T 40393-2021	Corrosion of metals and alloys—Accelerated corrosion test for intergranular corrosion susceptibility of austenitic stainless steels 金属和合金的腐蚀奥氏体不锈钢晶间腐蚀敏感性加速腐蚀试验方法	China National Standards metals	English PDF
GB/T 40389-2021	Sintered metal materials, excluding hardmetals—Measurement of surface roughness 烧结金属材料（不包括硬质合金）表面粗糙度的测定	China National Standards metals	English PDF
GB/T 40339-2021	Corrosion of metals and alloys—Guidelines for assessing the significances of stress corrosion cracks detected in service 金属和合金的腐蚀服役中检出的应力腐蚀裂纹的重要性评估导则	China National Standards metals	English PDF
GB/T 40338-2021	Corrosion of metals and alloys—Exfoliation corrosion testing of aluminium alloys 金属和合金的腐蚀铝合金剥落腐蚀试验	China National Standards metals	English PDF
GB/T 40314-2021	Corrosion of metals and alloys—Crevice corrosion formers with disc springs for flat specimens or tubes made from stainless steel 金属和合金的腐蚀适用于不锈钢平板或管状试样的碟形弹簧缝隙腐蚀构型	China National Standards metals	English PDF
GB/T 40299-2021	Corrosion of metals and alloys—Conventions applicable to electrochemical measurements in corrosion testing 金属和合金的腐蚀腐蚀试验电化学测量方法适用惯例	China National Standards metals	English PDF
GB/T 15970.10-2021	Corrosion of metals and alloys—Stress corrosion testing—Part l0: Reverse U-bend method 金属和合金的腐蚀应力腐蚀试验第10部分：反向U型弯曲试验方法	China National Standards metals	English PDF
GB/T 15078-2021	Testing method for contact resistance of precious metals electrical contact materials 贵金属电触点材料接触电阻的测量方法	China National Standards metals	English PDF
GB/T 1425-2021	Determination of melting temperature range for precious metals and their alloys—Testing method of thermal analysis 贵金属及其合金熔化温度范围的测定热分析试验方法	China National Standards metals	English PDF
GB/T 40377-2021	Corrosion of metals and alloys—Determination of AC corrosion—Protection criteria 金属和合金的腐蚀交流腐蚀的测定防护准则	China National Standards metals	English PDF
GB/T 40374-2021	Hardmetals—Determination of lead and cadmium content—Flame atomic absorption spectrometric method and inductively coupled plasma atomic emission spectrometry 硬质合金化学分析方法铅量和镉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 metals	English PDF
GB/T 3488.3-2021	Hardmetals—Metallographic determination of microstructure—Part 3: Measurement of microstructural features in Ti (C, N) and WC/cubic carbide based hardmetals 硬质合金显微组织的金相测定第3部分：Ti（C,N）和WC立方碳化物基硬质合金显微组织的金相测定	China National Standards metals	English PDF
GB/T 41079.1-2021	Test methods for physical properties of liquid metals—Part 1:Determination of density 液态金属物理性能测定方法第1部分：密度的测定	China National Standards metals	English PDF
GB/T 41155-2021	Sintered metal materials,excluding hardmetals—Fatigue test pieces 烧结金属材料（不包括硬质合金）疲劳试样	China National Standards metals	English PDF
GB/T 41058-2021	Methods for detecting heavy metals in sludge and contaminated soil for cement kiln coprocessing 水泥窑协同处置污泥及污染土中重金属的检测方法	China National Standards metals	English PDF
GB/T 12690.8-2021	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 8:Determination of sodium content 稀土金属及其氧化物中非稀土杂质化学分析方法第8部分：钠量的测定	China National Standards metals	English PDF
GB/T 22930.1-2021	Leather and fur—Chemical determination of metal content—Part 1:Extractable metals 皮革和毛皮金属含量的化学测定第1部分：可萃取金属	China National Standards metals	English PDF
GB/T 39560.5-2021	Determination of certain substances in electrical and electronic products—Part 5: Cadmium，lead and chromium in polymers and electronics and cadmium and lead in metals by AAS，AFS，ICP-OES and ICP-MS 电子电气产品中某些物质的测定第5部分： AAS、AFS、ICP-OES和ICP-MS法测定聚合物和电子件中镉、铅、铬以及金属中镉、铅的含量	China National Standards metals	English PDF
GB/T 39560.4-2021	Determination of certain substances in electrical and electronic products—Part 4: Mercury in polymers, metals and electronics by CV-AAS, CV-AFS , ICP-OES and ICP-MS 电子电气产品中某些物质的测定第4部分：CV-AAS、CV-AFS、ICP-OES和ICP-MS测定聚合物、金属和电子件中的汞	China National Standards metals	English PDF
GB/T 12690.4-2021	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 4: Determination of oxygen and nitrogen contents—Impulse-infrared absorption and impulse-thermal conductivity method 稀土金属及其氧化物中非稀土杂质化学分析方法第4部分：氧、氮量的测定脉冲-红外吸收法和脉冲-热导法	China National Standards metals	English PDF
GB/T 40795.2-2021	Chemical analysis methods of lanthanum-cerium metals and their compounds—Part 2:Determination of rare earth content 镧铈金属及其化合物化学分析方法第2部分：稀土量的测定	China National Standards metals	English PDF
GB/T 40795.1-2021	Chemical analysis method of lanthanum-cerium metals and their compounds—Part 1:Determination of cerium content—Ammonium ferrous sulfate titration method 镧铈金属及其化合物化学分析方法第1部分：铈量的测定硫酸亚铁铵滴定法	China National Standards metals	English PDF
GB/T 40796-2021	Corrosion of metals and alloys—Guidelines for applying statistics to analysis of corrosion data 金属和合金的腐蚀腐蚀数据分析应用统计学指南	China National Standards metals	English PDF
GB/T 18115.4-2021	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides -- Part 4: Determination of lanthanum, cerium, praseodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yt 稀土金属及其氧化物中稀土杂质化学分析方法第4部分：钕中镧、铈、镨、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定	China National Standards metals	English PDF
GB/T 12690.7-2021	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 7: Determination of silicon content 稀土金属及其氧化物中非稀土杂质化学分析方法第7部分：硅量的测定	China National Standards metals	English PDF
GB 39800.3-2020	Specifications for the provision of personal protective equipment—Part 3：Metallurgy,nonferrous metals 个体防护装备配备规范第3部分：冶金、有色	China National Standards metals	English PDF
GB/T 39534-2020	Corrosion of metals and alloys—Method for determination of the uniform corrosion rate of stainless steels and nickel based alloys in liquids 金属和合金的腐蚀液体中不锈钢和镍基合金均匀腐蚀速率测定方法	China National Standards metals	English PDF
GB/T 39154-2020	Corrosion of metals and alloys—Cathodic protection of steel in concrete 金属和合金的腐蚀混凝土用钢筋的阴极保护	China National Standards metals	English PDF
GB/T 39155-2020	Corrosion of metals and alloys—Cathodic protection of harbour installations 金属和合金的腐蚀海港设施的阴极保护	China National Standards metals	English PDF
GB/T 39203-2020	Technical specifications for extraction of valuable metals from copper smelting dust 铜冶炼烟灰提取有价金属技术规范	China National Standards metals	English PDF
GB/T 10573-2020	Tensile testing method for fine wire of nonferrous metals 有色金属细丝拉伸试验方法	China National Standards metals	English PDF
GB/T 11376-2020	Metallic and other inorganic coatings—Phosphate conversion coating of metals 金属及其他无机覆盖层金属的磷化膜	China National Standards metals	English PDF
GB/T 4334-2020	Corrosion of metals and alloys－Test methods for intergranular corrosion of austenitic and ferritic-austenitic (duplex) stainless steels 金属和合金的腐蚀奥氏体及铁素体-奥氏体（双相）不锈钢晶间腐蚀试验方法	China National Standards metals	English PDF
GB/T 6885-2020	Hardmetals--Sampling and testing method of mixed powders 硬质合金混合粉取样和试验方法	China National Standards metals	English PDF
GB 51414-2020	Standard for water saving design in non-ferrous metals enterprises 有色金属企业节水设计标准	China National Standards metals	English PDF
GB/T 39637-2020	Corrosion of metals and alloys—Classification of soil corrosivity 金属和合金的腐蚀土壤环境腐蚀性分类	China National Standards metals	English PDF
GB/T 39560.701-2020	Determination of certain substances in electrical and electronic products—Part 7-1:Hexavalent chromium—Presence of hexavalent chromium [Cr(VI)] in colourless and coloured corrosion-protected coatings on metals by the colorimetric method 电子电气产品中某些物质的测定第7-1部分：六价铬比色法测定金属上无色和有色防腐镀层中的六价铬[Cr(VI)]	China National Standards metals	English PDF
GB/T 18115.2-2020	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides—Part 2: Determination of lanthanum, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yt 稀土金属及其氧化物中稀土杂质化学分析方法第2部分：铈中镧、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定	China National Standards metals	English PDF
GB/T 18115.1-2020	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides—Part 1: Determination of cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttri 稀土金属及其氧化物中稀土杂质化学分析方法第1部分：镧中铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定	China National Standards metals	English PDF
GB/T 15159-2020	Composite material strips of precious metals and their alloys 贵金属及其合金复合带材	China National Standards metals	English PDF
GB/T 14635-2020	Rare earth metals and their compounds—Determination of total rare earth content 稀土金属及其化合物化学分析方法稀土总量的测定	China National Standards metals	English PDF
GB/T 38269-2019	Corrosion of metals and alloys—Accelerated cyclic corrosion tests with exposure to synthetic ocean water salt-deposition process—Dry and wet conditions at constant absolute humidity 金属和合金的腐蚀含人造海水沉积盐过程的循环加速腐蚀试验恒定绝对湿度下干燥/湿润	China National Standards metals	English PDF
GB/T 38430-2019	Corrosion of metals and alloys—Test method for isothermal-exposure oxidation testing under high-temperature corrosion conditions for metallic materials 金属和合金的腐蚀金属材料在高温腐蚀条件下的等温暴露氧化试验方法	China National Standards metals	English PDF
GB/T 38365-2019	Technical procedure on smokeless production of copper phosphorus brazing filler metals 铜磷钎料无烟尘生产技术规范	China National Standards metals	English PDF
GB/T 38269-2019	Corrosion of metals and alloys—Accelerated cyclic corrosion tests with exposure to synthetic ocean water salt-deposition process—Dry and wet conditions at constant absolute humidity 金属和合金的腐蚀含人造海水沉积盐过程的循环加速腐蚀试验恒定绝对湿度下干燥/湿润	China National Standards metals	English PDF
GB/T 37623-2019	Corrosion of metals and alloys—Aqueous corrosion testing of zirconium alloys for use in nuclear power reactors 金属和合金的腐蚀核反应堆用锆合金水溶液腐蚀试验	China National Standards metals	English PDF
GB/T 37619-2019	Corrosion of metals and alloys—Potentiostatic test and evaluation method for determination of susceptibility to grooving corrosion of high frequency electric resistance welded steel pipes 金属和合金的腐蚀高频电阻焊焊管沟槽腐蚀性能恒电位试验与评价方法	China National Standards metals	English PDF
GB/T 37603-2019	Medium temperature brazing filler metals of aluminum alloys 铝合金中温钎料	China National Standards metals	English PDF
GB/T 37160-2019	Standard test method for determination of trace metals in heavy distillate,residual oil and crude oil—Inductively coupled plasma optical emission spectrometry（ICP-OES）重质馏分油、渣油及原油中痕量金属元素的测定电感耦合等离子体发射光谱法	China National Standards metals	English PDF
GBZ/T 308-2018	Simultaneous determination of various metals in urine by inductively coupled plasma mass spectrometry 尿中多种金属同时测定-电感耦合等离子体质谱法	China National Standards metals	English PDF
GB/T 19292.2-2018	Corrosion of metals and alloys—Corrosivity of atmospheres—Part 2: Guiding values for the corrosivity categories 金属和合金的腐蚀大气腐蚀性第2部分：腐蚀等级的指导值	China National Standards metals	English PDF
GB/T 19292.1-2018	Corrosion of metals and alloys—Corrosivity of atmospheres—Part 1: Classification, determination and estimation 金属和合金的腐蚀大气腐蚀性第1部分：分类、测定和评估	China National Standards metals	English PDF
GB/T 35083.1-2018	Plain bearings—Testing of the tribological behaviour of bearing materials—Part 1: Testing of bearing metals 滑动轴承轴承材料摩擦学特性试验第1部分：金属轴承材料试验	China National Standards metals	English PDF
GB/T 19746-2018	Corrosion of metals and alloys—Alternate immersion test in salt solution 金属和合金的腐蚀盐溶液周浸试验	China National Standards metals	English PDF
GB/T 10046-2018	Silver brazing filler metals 银钎料	China National Standards metals	English PDF
GB/T 15970.1-2018	Corrosion of metals and alloys—Stress corrosion testing—Part 1: General guidance on testing procedures 金属和合金的腐蚀应力腐蚀试验第1部分：试验方法总则	China National Standards metals	English PDF
GB/T 19292.4-2018	Corrosion of metals and alloys—Corrosivity of atmospheres—Part 4: Determination of corrosion rate of standard specimens for the evaluation of corrosivity 金属和合金的腐蚀大气腐蚀性第4部分：用于评估腐蚀性的标准试样的腐蚀速率的测定	China National Standards metals	English PDF
GB/T 19292.3-2018	Corrosion of metals and alloys—Corrosivity of atmospheres—Part 3: Measurement of environmental parameters affecting corrosivity of atmospheres 金属和合金的腐蚀大气腐蚀性第3部分：影响大气腐蚀性环境参数的测量	China National Standards metals	English PDF
GB/T 36174-2018	Corrosion of metals and alloys—Determination of resistance to intergranular corrosion of solution heat-treatable aluminium alloys 金属和合金的腐蚀固溶热处理铝合金的耐晶间腐蚀性的测定	China National Standards metals	English PDF
GB/T 3488.2-2018	Hardmetals—Metallographic determination of microstructure—Part 2：Measurement of WC grain size 硬质合金显微组织的金相测定第2部分：WC晶粒尺寸的测量	China National Standards metals	English PDF
GB/T 12690.15-2018	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides―Part 15: Determination of calcium content 稀土金属及其氧化物中非稀土杂质化学分析方法第15部分：钙量的测定	China National Standards metals	English PDF
GB/T 36700.7-2018	Chemicals—Guidance on hazard classification to the aquatic environment—Part 7:Classification of metals and metal compounds 化学品水生环境危害分类指导第7部分：金属和金属化合物分类	China National Standards metals	English PDF
GB/T 5167-2018	Sintered metal materials and hardmetals—Determination of electrical resistivity 烧结金属材料和硬质合金电阻率的测定	China National Standards metals	English PDF
GB/T 12690.19-2018	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 19: Determination of arsenic and mercury contents 稀土金属及其氧化物中非稀土杂质化学分析方法第19部分：砷、汞量的测定	China National Standards metals	English PDF
GB/T 36700.8-2018	Chemicals—Guidance on hazard classification to the aquatic environment—Part 8:Guidance on transformation/dissolution of metals and metal compounds in aqueous media 化学品水生环境危害分类指导第8部分：金属和金属化合物在水介质中的转化/溶解指导	China National Standards metals	English PDF
GB/T 17737.310-2018	Coaxial communication cables—Part 1-310: Mechanical test methods—Test for torsion characteristics of copper-clad metals 同轴通信电缆第1-310部分：机械试验方法铜包金属的扭转特性试验	China National Standards metals	English PDF
GB/T 17737.308-2018	Coaxial communication cables—Part 1-308: Mechanical test methods—Test for tensile strength and elongation for copper-clad metals 同轴通信电缆第1-308部分：机械试验方法铜包金属的抗拉强度和延伸率试验	China National Standards metals	English PDF
GB/T 12690.5-2017	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 5: Determination of cobalt,manganese,lead,nickel,copper,zinc,aluminum,chromium,magnesium,cadmium,vanadium and iron contents 稀土金属及其氧化物中非稀土杂质化学分析方法第5部分：钴、锰、铅、镍、铜、锌、铝、铬、镁、镉、钒、铁量的测定	China National Standards metals	English PDF
GB/T 15970.7-2017	Corrosion of metals and alloys—Stress corrosion testing—Part 7: Slow strain rate testing 金属和合金的腐蚀应力腐蚀试验第7部分: 慢应变速率试验	China National Standards metals	English PDF
GB/T 12690.18-2017	Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides— Part 18: Determination of zirconium content 稀土金属及其氧化物中非稀土杂质化学分析方法第18部分：锆量的测定	China National Standards metals	English PDF
GB/T 12690.6-2017	Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 6: Determination of iron content—Kslium thiocyanate, 1,10-Phenanthroline spectrophotometric method 稀土金属及其氧化物中非稀土杂质化学分析方法第6部分：铁量的测定硫氰酸钾、1,10-二氮杂菲分光光度法	China National Standards metals	English PDF
GB/T 5124.3-2017	Hardmetals—Part 3：Determination of cobalt—Potentiometric method 硬质合金化学分析方法第3部分：钴量的测定电位滴定法	China National Standards metals	English PDF
GB/T 34501-2017	Hardmetals—Abrasion tests for hardmetals 硬质合金耐磨试验方法	China National Standards metals	English PDF
GB/T 5124.4-2017	Hardmetals—Part 4：Determination of titanium content—Photometric peroxide method 硬质合金化学分析方法第4部分：钛量的测定过氧化氢分光光度法	China National Standards metals	English PDF
GB/T 4157-2017	Laboratory testing of metals for resistance to sulfide stress cracking and stress corrosion cracking in H2S environment 金属在硫化氢环境中抗硫化物应力开裂和应力腐蚀开裂的实验室试验方法	China National Standards metals	English PDF
GB/T 34626.1-2017	Metallic and other inorganic coatings—Cleaning and preparation of metal surfaces—Part 1: Ferrous metals and alloys 金属及其他无机覆盖层金属表面的清洗和准备第1部分：钢铁及其合金	China National Standards metals	English PDF

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