NF T90-415:1985 Testing water - Detection and enumeration of the spores of sulfite-reducing anaerobes and of sulfite-reducing (Clostridia) - General method by the standing tube technique.
1985NF T90-415:1985 Testing water - Detection and enumeration of the spores of sulfite-reducing anaerobes and of sulfite-reducing (Clostridia) - General method by the standing tube technique.