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	GB/T 12690.12-2024 稀土金属及其氧化物中非稀土杂质-化学分析方法-第12部分：钍、铀量的测定-电感耦合等离子体质谱法（中英文版） Non-rare earth impurities in rare earth metals and their oxides - Chemical analysis methods - Part 12: Determination of thorium and uranium content - Inductively coupled plasma mass spectrometry
	GB/T 12690.1-2022 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（中英文版） 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
	GB/T 12690.8-2021 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（中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 8:Determination of sodium content
	GB/T 12690.4-2021 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（中英文版） 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
	GB/T 12690.7-2021 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（中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 7: Determination of silicon content
	GB/T 12690.15-2018 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（中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides―Part 15: Determination of calcium content
	GB/T 12690.19-2018 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（中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 19: Determination of arsenic and mercury contents
	GB/T 12690.5-2017 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（中英文版） 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
	GB/T 12690.18-2017 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（中英文版） Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides— Part 18: Determination of zirconium content
	GB/T 12690.6-2017 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（中英文版） 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 12690.3-2015 稀土金属及其氧化物中非稀土杂质化学分析方法第3部分：稀土氧化物中水分量的测定重量法（中英文版） Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 3: Determination of water content of rare earth oxides—Gravimetric method
	GB/T 12690.2-2015 稀土金属及其氧化物中非稀土杂质化学分析方法第2部分：稀土氧化物中灼减量的测定重量法（中英文版） Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 2: Determination of ignition loss content of rare earth oxides—Gravimetric method
	GB/T 12690.1-2015 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（中英文版） Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 1: Determination of carbon and sulfur contents—High frequency-infrared absorption method
	GB/T 12690.17-2010 稀土金属及其氧化物中非稀土杂质化学分析方法第17部分：稀土金属中铌、钽量的测定（中英文版） Chemical analysis methods of non-rare earth impurities in rare earth metals and the oxides - Part 17：Determination of niobium and tantalum contents of rare earth metals
	GB/T 12690.16-2010 稀土金属及其氧化物中非稀土杂质化学分析方法第16部分：氟量的测定离子选择性电极法（中英文版） Chemical analysis methods of non-rare earth impurities in rare earth metals and the oxides - Part 16: Determination of fluorine content - Ion selective electrode analysis
	GB/T 12690.14-2006 稀土金属及其氧化物中非稀土杂质化学分析方法钛量的测定（中英文版） Chemical analysis methods of non-rare earth impurities in rare earth metals and their oxides Determination of titanium in rare earth metals
	GB/T 12690.9-2003 稀土金属及其氧化物中非稀土杂质化学分析方法氯量的测定硝酸银比浊法（中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals andtheir oxides--Determination of chlorine content--Silver nitrate turbidimetric method
	GB/T 12690.8-2003 稀土金属及其氧化物中非稀土杂质化学分析方法钠量的测定火焰原子吸收光谱法（中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of sodium content--Flame atomic absorption spectrometric method
	GB/T 12690.7-2003 稀土金属及其氧化物中非稀土杂质化学分析方法硅量的测定钼蓝分光光度法（中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of silicon content--Molybdenum blue spectrophotometric method
	GB/T 12690.6-2003 稀土金属及其氧化物中非稀土杂质化学分析方法铁量的测定硫氰酸钾、1，10-二氮杂菲分光光度法（中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of iron content--Kalium thiocyanate，1，10-phenanthroline spectrophotometric method
	GB/T 12690.5-2003 稀土金属及其氧化物中非稀土杂质化学分析方法铝、铬、锰、铁、钴、镍、铜、锌、铅的测定电感耦合等离子体发射光谱法(方法1) 钴、锰、铅、镍、铜、锌、铝、铬的测定电感耦合等离子（中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of Al、Cr、Mn、Fe、Co、Ni、Cu、Zn、Pb content by inductively coupled plasma atomic emission spectrographic method--Determination of Co、M
	GB/T 12690.4-2003 稀土金属及其氧化物中非稀土杂质化学分析方法氧、氮量的测定脉冲-红外吸收法和脉冲-热导法（中英文版） Chemical analysis methods for non-rare earth impurities ofrare earth metals and their oxides--Determination of oxygen and nitrogen content--Impulse-infrared and impulse-thermal conductance absorption method
	GB/T 12690.13-2003 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（中英文版） 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
	GB/T 12690.12-2003 稀土金属及其氧化物中非稀土杂质化学分析方法钍量的测定偶氮胂III分光光度法和电感耦合等离子体质谱法（中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of thorium content--Arsenazo III spectrophotometric method and inductively coupled plasma mass spectrum method
	GB/T 12690.11-2003 稀土金属及其氧化物中非稀土杂质化学分析方法镁量的测定火焰原子吸收光谱法（中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of magnesium content--Flame atomic absorptionspectrometric method
	GB/T 12690.10-2003 稀土金属及其氧化物中非稀土杂质化学分析方法磷量的测定钼蓝分光光度法（中英文版） Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of phosphorus content by molybdenum blue spectrophotometric method

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