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ISO/PWI 14461

Milk and milk products — Quality control in microbiological laboratories

General information

00.00     Jun 17, 2025

ISO

ISO/TC 34/SC 9

International Standard

Scope

ISO 14461 | IDF 169 describes a routine procedure for the evaluation of results of the enumeration of microorganisms using colony-count methods with subsequent 10-fold dilution steps and one plate or two parallel plates within each dilution step.
This routine procedure is applied regularly in each laboratory performing colony counts. It provides criteria for the acceptability of differences between the results from parallel plates and subsequent dilution steps

Life cycle

PREVIOUSLY

PUBLISHED
ISO 14461-1:2005

NOW

PROJECT
ISO/PWI 14461
00.00 Proposal for new project received
Jun 17, 2025