Water quality - Requirements for the comparison of the relative recovery of microorganisms by two quantitative methods (ISO 17994:2014); German version EN ISO 17994:2014— 29 стр.
Water quality - Requirements for the comparison of the relative recovery of microorganisms by two quantitative methods (ISO/DIS 17994:2012); German version prEN ISO 17994:2012
Water quality - Requirements for establishing performance characteristics of quantitative microbiological methods (ISO 13843:2017); German version EN ISO 13843:2017— 81 стр.