DIN 38409-26:1989
德国对水、废水和污泥的标准检验法.参数特性效果和物质(H组).铋-螯合物指数IBiK的测定(H26)
German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of the bismut-chelating index IBiK (H 26)