2003ISO 7875-1:1996/cor 1:2003 Water quality - Determination of surfactants - Part 1: Determination of anionic surfactants by measurement of the methylene blue index (MBAS); Technical Corrigendum 1
1996ISO 7875-1:1996 Water quality - Determination of surfactants - Part 1: Determination of anionic surfactants by measurement of the methylene blue index (MBAS)
1984ISO 7875-1:1984 Water quality; Determination of surfactants; Part 1 : Determination of anionic surfactants by the methylene blue spectrometric method