GB/T 1819.14-2017 锡精矿化学分析方法 第14部分:铜量的测定 火焰原子吸收光谱法 Methods for chemical analysis of tin concentrates—Part 14:Determination of copper content—Flame atomic absorption spectrometry
脱硫脱硝用煤质颗粒活性炭 Granular coal-based activated carbon for desulfurization and denitration 标准号:GB/T 30201-2013
GB 15981-1995 消毒与灭菌效果的评价方法与标准 Evaluating method and standard for the efficacy of disinfection and sterilization
GB 15979-2002 一次性使用卫生用品卫生标准 Hygienic standard for disposable sanitary products