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GB/T 4324.21-2012
钨化学分析方法 第21部分:铬量的测定 电感耦合等离子体原子发射光谱法
Methods for chemical analysis of tungsten - Part 21: Determination of chromium content - Inductively coupled plasma atomic emission spectrometry
GB/T 4324.24-2012
Methods for chemical analysis of tungsten - Part 24: Determination of phosphorus content - Molybdemum blue photometry
GB/T 4324.11-2012
钨化学分析方法 第11部分:铝量的测定 电感耦合等离子体原子发射光谱法
Methods for chemical analysis of tungsten - Part 11: Determination of aluminum content - Inductively coupled plasma atomic emission spectrometry
GB/T 28968-2012
Electronic toll collection - Technical requirement for facilities of the lane system
GB 19079.30-2013
Operation conditions and technical requirements for gymnasium and playground - Part 30: Mountain outdoor place
GB 19079.1-2013
Operation conditions and technical requirements for gymnasium and playground - Part 1: Swimming place
GB/T 4324.18-2012
Methods for chemical analysis of tungsten - Part 18: Determination of potassium content - Flame atomic absorption spectrometry
GB/T 4324.19-2012
钨化学分析方法 第19部分:钛量的测定 二安替比林甲烷分光光度法
Methods for chemical analysis of tungsten - Part 19: Determination of titanium content - The diantipyrylmethane photometric spectrophtometry