EN ISO 21187:2021

Milk - Quantitative determination of microbiological quality - Guidance for establishing and verifying a conversion relationship between results of an alternative method and anchor method results (ISO 21187:2021)

Publication date:   Jul 15, 2021

General information

60.60 Standard published   Mar 10, 2021


CEN/TC 302 Milk and milk products - Methods of sampling and analysis

European Norm

07.100.30   Food microbiology | 67.100.01   Milk and milk products in general



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This document gives guidelines for the establishment of a conversion relationship between the results of an alternative method and an anchor method, and its verification for the quantitative determination of the microbiological quality of milk.
NOTE The conversion relationship can be used a) to convert results from an alternative method to the anchor basis or b) to convert results/limits, expressed on an anchor basis, to results in units of an alternative method.

Life cycle


EN ISO 21187:2005


EN ISO 21187:2021
60.60 Standard published
Mar 10, 2021