China Determination chemical oxygen GB Standards List

China "Determination chemical oxygen" GB Standards List:

Standard Code	Standard Title	Standard Class	Order
GB/T 5121.8-2024	Chemical analysis methods for copper and copper alloys - Part 8: Determination of oxygen, nitrogen and hydrogen content {译} 铜及铜合金化学分析方法-第8部分：氧、氮、氢含量的测定	China National Standards Determination chemical oxygen	English PDF
GB/T 43503-2023	Natural gas - Determination of oxygen content - Electrochemical method {译} 天然气氧气含量的测定电化学法	China National Standards Determination chemical oxygen	English PDF
GB/T 3396-2022	Determination of trace oxygen in ethylene and propylene for industrial use - Electrochemical method {译} 工业用乙烯、丙烯中微量氧的测定电化学法	China National Standards Determination chemical oxygen	English PDF
GB/T 26416.5-2022	Methods for chemical analysis of rare earth iron alloys - Part 5: Determination of oxygen content - Pulse-infrared absorption method {译} 稀土铁合金化学分析方法第5部分：氧含量的测定脉冲-红外吸收法	China National Standards Determination chemical oxygen	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 Determination chemical oxygen	English PDF
GB/T 15456-2019	Determination of the chemical oxygen demand in industrial circulating cooling water—Permanganate index method 工业循环冷却水中化学需氧量（COD）的测定高锰酸盐指数法	China National Standards Determination chemical oxygen	English PDF
GB/T 34500.2-2017	Chemical analysis methods for rare earth residue and waste water—Part 2：Determination of chemical oxygen demand（COD）稀土废渣、废水化学分析方法第2部分：化学需氧量(COD)的测定	China National Standards Determination chemical oxygen	English PDF
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 锆及锆合金化学分析方法第22部分：氧量和氮量的测定惰气熔融红外吸收法/热导法	China National Standards Determination chemical oxygen	English PDF
GB/T 6285-2016	Determination of trace oxygen in gases—Electrochemical method 气体中微量氧的测定电化学法	China National Standards Determination chemical oxygen	English PDF
GB/T 22597-2014	Determination of chemical oxygen demand of reclaimed wastewater―Potassium dichromate method 再生水中化学需氧量的测定重铬酸钾法	China National Standards Determination chemical oxygen	English PDF
GB/T 31195-2014	High chloride high ammonia wastewater―Determination of chemical oxygen demand―Chloride ion calibration method 高氯高氨废水化学需氧量的测定氯离子校正法	China National Standards Determination chemical oxygen	English PDF
GB/T 14420-2014	Analysis of water used in boiler and cooling system―Determination of chemical oxygen demand―Rapid method with potassium dichromate 锅炉用水和冷却水分析方法化学耗氧量的测定重铬酸钾快速法	China National Standards Determination chemical oxygen	English PDF
GB/T 29599-2013	Textile dyeing and finishing auxiliaries - Determination of chemical oxygen demand(COD) 纺织染整助剂化学需氧量(COD)的测定	China National Standards Determination chemical oxygen	English PDF
GB/T 4325.23-2013	Methods for chemical analysis of molybdenum - Part 23: Determination of oxygen and nitrogen contents - Inert gas fusion-infrared absorption and thermal conductivity method 钼化学分析方法第23部分：氧量和氮量的测定惰气熔融红外吸收法-热导法	China National Standards Determination chemical oxygen	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 Determination chemical oxygen	English PDF
GB/T 4698.7-2011	Methods for chemical analysis of titanium sponge,titanium and titanium alloys - Determination of oxygen and nitrogen content 海绵钛、钛及钛合金化学分析方法氧量、氮量的测定	China National Standards Determination chemical oxygen	English PDF
GB/T 26416.5-2010	Chemical analysis methods of dysprosium ferroalloy - Part 5 :Determination of oxygen content - Impulse-infrared conductance absorption method 镝铁合金化学分析方法第5部分：氧量的测定脉冲红外吸收法	China National Standards Determination chemical oxygen	English PDF
GB/T 5121.8-2008	Methods for chemical analysis of copper and copper alloys Part 8:Determination of oxygen content 铜及铜合金化学分析方法第8部分：氧含量的测定	China National Standards Determination chemical oxygen	English PDF
GB/T 15456-2008	Industrial circulating cooling water - Determination of the chemical oxygen demand - Potassium permanganate method 工业循环冷却水中化学需氧量(COD)的测定高锰酸钾法	China National Standards Determination chemical oxygen	English PDF
GB/T 15076.14-2008	Methods for chemical analysis of tantalum and niobium - Determination of oxygen content 钽铌化学分析方法氧量的测定	China National Standards Determination chemical oxygen	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 Determination chemical oxygen	English PDF
GB/T 6285-2003	Determination of trace oxygen in gases--Eletrochemical method 气体中微量氧的测定电化学法	China National Standards Determination chemical oxygen	English PDF
GB/T 3396-2002	Ethylene and propylene for industrial use--Determination of trace oxygen--Electrochemical method 工业用乙烯、丙烯中微量氧的测定电化学法	China National Standards Determination chemical oxygen	English PDF
GB/T 11913-1989	Water quality--Determination of dissolved oxygen--Electrochemical probe method 水质溶解氧的测定电化学探头法	China National Standards Determination chemical oxygen	English PDF
GB/T 7488-1987	Water quality--Determination of biochemical oxygen demand after 5 days(BOD5)--Dilution and seeding method 水质五日生化需氧量(BOD5)的测定稀释与接种法	China National Standards Determination chemical oxygen	English PDF
GB/T 4921-1985	Waste gasfrom manufacturing process--Determination of chemical oxygendemand and nitrogenoxide--Potassium dichromate oxidation and naphthylethylene diamine colorimetric method 工业废气耗氧值和氧化氮的测定重铬酸钾氧化、萘乙二胺比色法	China National Standards Determination chemical oxygen	English PDF

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