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
水质;亚硫酸盐还原厌氧菌(梭菌)孢子的检测和计数;第1部分:在液体介质中富集的方法(ISO 6461-1-1986);德文版EN 26461-1:1993