99.60 Withdrawal effective Feb 19, 2014
CEN
CEN/TC 230 Water analysis
European Norm
07.100.20 Microbiology of water | 13.060.70 Examination of biological properties of water
ISO 17994:2004 defines an evaluation procedure for comparing two methods intended for the detection or quantification of the same target group or species of microorganisms.
ISO 17994:2004 provides the mathematical basis for the evaluation of the average relative performance of two methods against chosen criteria of equivalence.
Any two enumeration methods based on counts (of colonies or positive tubes) or any two detection methods (presence/absence methods) intended for the same purpose can be compared.
ISO 17994:2004 provides no solution to directly compare a quantitative method (colony count or MPN) with a detection method (P/A).
Legislation related to this standard
WITHDRAWN
EN ISO 17994:2004
99.60
Withdrawal effective
Feb 19, 2014
PUBLISHED
EN ISO 17994:2014