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91. HJ 873-2017土壤 水溶性氟化物和总氟化物的测定 离子选择电极法 [36%]
HJ 873-2017土壤 水溶性氟化物和总氟化物的测定 离子选择电极法
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2022-10-20 10:15:01
92. GB/T 23513.4-2009锗精矿化学分析方法.第4部分:氟量的测定.离子选择电极法Chemical analysis methods for germanium concentrate—Part 4:Determination of fluoride content—ISE [36%]
GB/T 23513.4-2009锗精矿化学分析方法.第4部分:氟量的测定.离子选择电极法Chemical analysis methods for germanium concentrate—Part 4:Determination of fluoride content—ISE
标准下载
2022-07-05 08:06:01
93. HJ 1147-2020水质 pH值的测定 电极法 [36%]
HJ 1147-2020水质 pH值的测定 电极法
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2022-09-02 19:33:01
94. GB/T 1878-1995磷矿石和磷精矿中碘含量的测定 分光光度法和离子选择性电极法Phosphate rock and concentrate-Determination of iodine content-Spectrophotometric and specific ion electrode methods [36%]
GB/T 1878-1995磷矿石和磷精矿中碘含量的测定 分光光度法和离子选择性电极法Phosphate rock and concentrate-Determination of iodine content-Spectrophotometric and specific ion electrode methods
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2022-11-17 00:30:01
95. GB/T 1695-2005硫化橡胶.工频击穿电压强度和耐电压的测定方法Rubber,vulcanized—Determination of electrical breakdown strength and voltage resistant at commercial power frequency [36%]
GB/T 1695-2005硫化橡胶.工频击穿电压强度和耐电压的测定方法Rubber,vulcanized—Determination of electrical breakdown strength and voltage resistant at commercial power frequency
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2022-07-05 09:45:01
96. GB/T 2465-1996硫铁矿和硫精矿中氟含量的测定 离子选择性电极法Piping sleeve expansion joints [36%]
GB/T 2465-1996硫铁矿和硫精矿中氟含量的测定 离子选择性电极法Piping sleeve expansion joints
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2022-11-23 10:06:01
97. YS/T 743-2010电解铝净化系统中气氟的测定碱滤纸·氟离子选择性电极法Determination of gaseous flouride in purification system for electrolyzed aluminium by alkali-paper sampling and fluorine ion-selective electrode analysis [36%]
YS/T 743-2010电解铝净化系统中气氟的测定碱滤纸·氟离子选择性电极法Determination of gaseous flouride in purification system for electrolyzed aluminium by alkali-paper sampling and fluorine ion-selective electrode analysis
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2022-09-16 16:57:01
98. GB/T 14114-1993半导体集成电路电压/频率和频率/电压转换器测试方法的基本原理General principles of measuring methods of V/F and F/V converters for semiconductor integrated circuits [36%]
GB/T 14114-1993半导体集成电路电压/频率和频率/电压转换器测试方法的基本原理General principles of measuring methods of V/F and F/V converters for semiconductor integrated circuits
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2022-10-22 06:00:02
99. GB/T 23278.8-2009锡酸钠化学分析方法.第8部分:硝酸盐含量的测定.离子选择电极法Methods for chemical analysis of sodium stannate - Part 8: Determination of nitrate content - Ion selective electrode method [36%]
GB/T 23278.8-2009锡酸钠化学分析方法.第8部分:硝酸盐含量的测定.离子选择电极法Methods for chemical analysis of sodium stannate - Part 8: Determination of nitrate content - Ion selective electrode method
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2022-07-10 01:27:01
100. GB/T 1872-1995磷矿石和磷精矿中氟含量的测定 离子选择性电极法Phosphate rock and concentrate-Detrmination of fluorine content-Specific ion electrode method [36%]
GB/T 1872-1995磷矿石和磷精矿中氟含量的测定 离子选择性电极法Phosphate rock and concentrate-Detrmination of fluorine content-Specific ion electrode method
标准下载
2022-08-21 01:39:01