DIN EN 26461-1 : 1993 Title: Water quality; detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia); part 1: method by enrichment in a liquid medium (ISO 6461-1:1986); german version EN 26461-1:1993 Year: 1993 Publisher: DIN Media GmbH Availability: Within 1-2 working days