DIN 38409-23-2010
德国检验水,废水和污泥的标准方法.参数特性效果和物质(H组)- 第23部分:铋活性物质的测定(H 23)
German standard methods for the examination of water, waste water and sludge - Parameters characterizing effects and substances (group H) - Part 23: Determination of bismut active substances (H 23)