组合使用关键词、标准类型、状态与 ICS 分类，快速定位所需国家标准。
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GB/T 34500.1-2017
Chemical analysis methods for rare earth residue and waste water—Part 1：Determination of fluorine content—Ion selective electrode analysis
GB/T 34495-2017
Hot pressed neodymium iron boron permanent magnetic materials
GB/T 34494-2017
Hydrogen decrepitating neodymium iron boron permanent magnetic powder
GB/T 34491-2017
Coatings for sintered neodymium iron boron permanent magnets
GB/T 20168-2017
Rapidly-quenched neodymium iron boron permanent magnetic powder
GB/T 18882.2-2017
Chemical analysis methods for mixed rare earth oxide of ion-absorpted type rare earth ore—Part 2:Determination of aluminum oxide content
GB/T 16484.13-2017
Chemical analysis methods for rare earth chloride and light rare erath carbonate--Part 13: Determination of ammonium chloride content
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
GB/T 15076.1-2017
Methods for chemical analysis of tantalum and niobium—Part 1: Determination of tantalum content in niobium—Inductively coupled plasma atomic emission spectrometry
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
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
GB/T 15076.13-2017
Methods for chemical analysis of tantalum and niobium—Part 13: Determination of nitrogen content—Inert gas fusion thermal conductivity method
GB/T 34499.2-2017
Methods for chemical analysis of iridium compounds—Part 2：Determination of silver, gold, platinum, palladium, rhodium, ruthenium, aluminium, copper, iron, nickel, lead, magnesium, manganese, tin, zinc, calcium, sodium, potassium, silicon content—Inductively coupled plasma atomic emission spectrometry
GB/T 34499.1-2017
Method for chemical analysis of iridium compounds—Part 1: Determination of iridium content—Electricity titration using ferrous sulfate
GB/T 13747.8-2017
Methods for chemical analysis of zirconium and zirconium alloys—Part 8：Determination of cobalt content—Nitroso-R-salt spectrophotometry
GB/T 13747.25-2017
Methods for chemical analysis of zirconium and zirconium alloys—Part 25：Determination of niobium content—2-(5-bromo-2-pyridylazo)-5-diethylam inophenol spectrophotometry and inductively coupled plasma atomic emission spectrometry
GB/T 13747.24-2017
Methods for chemical analysis of zirconium and zirconium alloys—Part 24：Determination of carbon content—Infrared absorption method after high frequency combustion
GB/T 13747.22-2017
Methods for chemical analysis of zirconium and zirconium alloys—Part 22：Determination of oxygen and nitrogen contents—Inert gas fusion-infrared absorption and thermal conductivity method
GB/T 13747.21-2017
Methods for chemical analysis of zirconium and zirconium alloys—Part 21：Determination of hydrogen content—Inert gas fusion-infrared absorption or thermal conductivity method
GB/T 13747.20-2017
Methods for chemical analysis of zirconium and zirconium alloys—Part 20：Determination of hafnium content—Inductively coupled plasma atomic emission spectrometry