UNE-EN ISO 21187:2007 Milk - Quantitative determination of bacteriological quality - Guidance for establishing and verifying a conversion relationship between routine method results and anchor method results (ISO 21187:2004)
2021UNE-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)
2007UNE-EN ISO 21187:2007 Milk - Quantitative determination of bacteriological quality - Guidance for establishing and verifying a conversion relationship between routine method results and anchor method results (ISO 21187:2004)