China oxides GB Standards English PDF List

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China "oxides" GB Standards English PDF List:

Standard Code	Standard Title	Standard Class	Order
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 oxides	English PDF
GB/T 18882.1-2023	Methods for chemical analysis of mixed rare earth oxides of ionic rare earth ores - Part 1: Determination of the proportions of fifteen rare earth element oxides 离子型稀土矿混合稀土氧化物化学分析方法第1部分：十五个稀土元素氧化物配分量的测定	China National Standards oxides	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 oxides	English PDF
GB/T 40266-2021	Quality general rules of oxides barrier transparent plastics laminated films and pouches for food packaging 食品包装用氧化物阻隔透明塑料复合膜、袋质量通则	China National Standards oxides	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 oxides	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 oxides	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 oxides	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 oxides	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 oxides	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 oxides	English PDF
GB/T 38316-2019	Test method of explosive power for organic peroxides and self-reactive substances 有机过氧化物和自反应物质作功能力的试验方法	China National Standards oxides	English PDF
GB/T 38316-2019	Test method of explosive power for organic peroxides and self-reactive substances 有机过氧化物和自反应物质作功能力的试验方法	China National Standards oxides	English PDF
GB/T 37186-2018	Gas analysis—Determination of sulfur dioxide and nitrogen oxides—Ultraviolet differential optical absorption spectroscopy 气体分析-二氧化硫和氮氧化物的测定-紫外差分吸收光谱分析法	China National Standards oxides	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 oxides	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 oxides	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 oxides	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 oxides	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 oxides	English PDF
GB/T 32102-2015	Determination for assay of organic peroxides—Iodometric method 有机过氧化物含量的测定碘量法	China National Standards oxides	English PDF
GB/T 31965-2015	Praseodymium-neodymium oxides 镨钕氧化物	China National Standards oxides	English PDF
GB/T 12690.3-2015	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 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	China National Standards oxides	English PDF
GB/T 12690.2-2015	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 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	China National Standards oxides	English PDF
GB/T 12690.1-2015	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 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 oxides	English PDF
GB/T 11039.4-2014	Textiles―Tests for colour fastness―Colour fastness to contaminants―Part 4: oxides of nitrogen in the atmosphere at high humidities 纺织品色牢度试验耐大气污染物色牢度第4部分：高湿氧化氮	China National Standards oxides	English PDF
GB 30000.16-2013	Rules for classification and labelling of chemicals - Part 16: Organic peroxides 化学品分类和标签规范第16部分：有机过氧化物	China National Standards oxides	English PDF
GB/T 9630-2012	Dimensions of pot-cores made of magnetic oxides and associated parts 磁性氧化物制成的罐形磁心及其附件的尺寸	China National Standards oxides	English PDF
GB/T 28868-2012	Dimensions of uncoated ring cores of magnetic oxides 未经涂覆的磁性氧化物环形磁心的尺寸	China National Standards oxides	English PDF
GB/T 12798-2012	Axial lead cores made of magnetic oxides or iron powder 磁性氧化物或铁粉制成的轴向引线磁心	China National Standards oxides	English PDF
GB 28644.3-2012	Classification and list of organic peroxides 有机过氧化物分类及品名表	China National Standards oxides	English PDF
GB 27833-2011	Safety code for packaging of hazardous chemicals of organic peroxides 危险化学品有机过氧化物包装规范	China National Standards oxides	English PDF
GB/T 12688.4-2011	Test method of styrene for industrial use - Part 4：Determination of content of peroxides - Titrimetric method 工业用苯乙烯试验方法第4部分：过氧化物含量的测定滴定法	China National Standards oxides	English PDF
GB/T 26458-2011	Fatty alkyl dimethyl amine oxides 脂肪烷基二甲基氧化胺	China National Standards oxides	English PDF
GB/T 18115.15-2010	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides - Part 15: Lutetium - Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytte 稀土金属及其氧化物中稀土杂质化学分析方法第15部分：镥中镧、铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱和钇量的测定	China National Standards oxides	English PDF
GB/T 18115.14-2010	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides - Part 14 : Ytterbium - Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, lu 稀土金属及其氧化物中稀土杂质化学分析方法第14部分：镱中镧、铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 18115.13-2010	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides - Part 13: Thulium - Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, ytterbium, lut 稀土金属及其氧化物中稀土杂质化学分析方法第13部分：铥中镧、铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、镱、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 12690.17-2010	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 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	China National Standards oxides	English PDF
GB/T 12690.16-2010	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 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	China National Standards oxides	English PDF
GB/T 7717.10-2008	Acrylonitrile for industrial use - Part 10: Determination of content of peroxides - Spectrophotometric method 工业用丙烯腈第10部分: 过氧化物含量的测定分光光度法	China National Standards oxides	English PDF
GB/T 18116.2-2008	Chemical analysis methods of Yttrium-europium oxides - Determination of europium oxides 氧化钇铕化学分析方法氧化铕量的测定	China National Standards oxides	English PDF
GB 21178-2007	Chassification procedure for self-reactive substances and organic peroxides 自反应物质和有机过氧化物分类程序	China National Standards oxides	English PDF
GB/T 20873-2007	PM-cores made of magnetic oxides and associated parts-dimensions 磁性氧化物制成的PM磁心及其附件的尺寸	China National Standards oxides	English PDF
GB/T 20872-2007	Dimensions of low-profile cores made of magnetic oxides 磁性氧化物制成的低矮形磁芯的尺寸	China National Standards oxides	English PDF
GB/T 18115.9-2006	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Dysprosium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, 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镝中镧、铈、镨、钕、钐、铕、钆、铽、钬、铒、铥、镱、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 18115.8-2006	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Terbium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, 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铽中镧、铈、镨、钕、钐、铕、钆、镝、钬、铒、铥、镱、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 18115.7-2006	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Gadolinium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, 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钆中镧、铈、镨、钕、钐、铕、铽、镝、钬、铒、铥、镱、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 18115.6-2006	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Europium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, 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铕中镧、铈、镨、钕、钐、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 18115.5-2006	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Samarium-Determination of lanthanum, cerium, praseodymium, neodymium, 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钐中镧、铈、镨、钕、铕、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 18115.4-2006	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Neodymium-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钕中镧、铈、镨、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 18115.3-2006	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Praseodymium-Determination of lanthanum, cerium, 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镨中镧、铈、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 18115.2-2006	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Cerium-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铈中镧、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 18115.12-2006	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Yttrium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lut 稀土金属及其氧化物中稀土杂质化学分析方法钇中镧、铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱和镥量的测定	China National Standards oxides	English PDF
GB/T 18115.1-2006	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Lanthanum-Determination of cerium, 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镧中铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 18115.11-2006	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Erbium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, 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铒中镧、铈、镨、钕、钐、铕、钆、铽、镝、钬、铥、镱、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 18115.10-2006	Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Holmium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, 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钬中镧、铈、镨、钕、钐、铕、钆、铽、镝、铒、铥、镱、镥和钇量的测定	China National Standards oxides	English PDF
GB/T 12690.14-2006	Chemical analysis methods of non-rare earth impurities in rare earth metals and their oxides Determination of titanium in rare earth metals 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	China National Standards oxides	English PDF
GB/T 11039.1-2005	Textiles-Tests for colour fastness-Colour fastness to Contaminants part1:nitrogen oxides 纺织品色牢度试验耐大气污染物色牢度第1部分:氧化氮	China National Standards oxides	English PDF
GB 19521.12-2004	Safety code for inspection ofhazardous properties for dangerous goods of organic peroxides 有机过氧化物危险货物危险特性检验安全规范	China National Standards oxides	English PDF
GB/T 12690.9-2003	Chemical analysis methods for non-rare earth impurities of rare earth metals andtheir oxides--Determination of chlorine content--Silver nitrate turbidimetric method 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	China National Standards oxides	English PDF
GB/T 12690.8-2003	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of sodium content--Flame atomic absorption spectrometric method 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	China National Standards oxides	English PDF
GB/T 12690.7-2003	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of silicon content--Molybdenum blue spectrophotometric method 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	China National Standards oxides	English PDF
GB/T 12690.6-2003	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 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	China National Standards oxides	English PDF
GB/T 12690.5-2003	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 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	China National Standards oxides	English PDF
GB/T 12690.4-2003	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 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	China National Standards oxides	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 oxides	English PDF
GB/T 12690.12-2003	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 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	China National Standards oxides	English PDF
GB/T 12690.11-2003	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of magnesium content--Flame atomic absorptionspectrometric method 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	China National Standards oxides	English PDF
GB/T 12690.10-2003	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of phosphorus content by molybdenum blue spectrophotometric method 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	China National Standards oxides	English PDF
GB/T 15245-2002	Quantitative analysis of rare earth element(REE)oxides by electron probe microanalysis(EPMA) 稀土氧化物的电子探针定量分析方法	China National Standards oxides	English PDF
GB/T 17828-1999	Butadiene for industrial use--Determination of peroxides--Titrimetric method 工业用丁二烯中过氧化物含量的测定滴定法	China National Standards oxides	English PDF
GB/T 17096-1997	Hygienic standard for nitrogen oxides in indoor air 室内空气中氮氧化物卫生标准	China National Standards oxides	English PDF
GB/T 16032-1995	Workplace air--Determination of nitrogen oxides--Naphthyl ethylenediamine dihydrochloride spectrophotometric method 车间空气中氧化氮的盐酸萘乙二胺分光光度测定方法	China National Standards oxides	English PDF
GB/T 15436-1995	Ambient air--Determination of nitrogen oxides--Saltzman method 环境空气氮氧化物的测定 Saltzman法	China National Standards oxides	English PDF
GB/T 15057.4-1994	Limestone for chemical industry--Determination of iron and aluminium oxides content--Gravimetric method 化工用石灰石中三氧化二物含量的测定重量法	China National Standards oxides	English PDF
GB/T 15057.2-1994	Limestone for chemical industry--Determination of calcium and magnesium oxides content 化工用石灰石中氧化钙和氧化镁含量的测定	China National Standards oxides	English PDF
GB/T 13906-1992	Air quality--Determination of nitrogen oxides 空气质量氮氧化物的测定	China National Standards oxides	English PDF
GB 11529-1989	Hygienic standard for cobalt and its oxides in the air of workplace 车间空气中钴及其氧化物卫生标准	China National Standards oxides	English PDF
GB/T 10192-1988	Dimensions of screw cores made of ferromagnetic oxides 磁性氧化物制成的螺纹磁芯的尺寸	China National Standards oxides	English PDF
GB/T 9636-1988	Aerial rods and slabs made of magnetic oxides 磁性氧化物制成的圆天线棒和扁天线棒	China National Standards oxides	English PDF
GB/T 8969-1988	Air quality--Determination of nitrogen oxides in ambient air--Griess-saltzman method 空气质量氮氧化物的测定盐酸萘乙二胺比色法	China National Standards oxides	English PDF
GB 7801-1987	Diagnostic criteria and principles of management of occupational acute nitrogen oxides 职业性急性氮氧化物中毒诊断标准及处理原则	China National Standards oxides	English PDF

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