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ISO/TC 34/SC 9/AHG 7
Quality control of the colony count technique
ISO 7889
Yoghurt - Enumeration of characteristic microorganisms - Colony-count technique
ISO/DIS 13647
Water quality - Enumeration of culturable microorganisms - Colony count by spread plate inoculation on R2A medium
prEN ISO 29981
Milk products - Enumeration of bifidobacteria - Colony-count technique (ISO 29981:2024)
prEN ISO 13647
Water quality - Enumeration of culturable microorganisms - Colony count by spread plate inoculation on R2A medium (ISO/DIS 13647:2025)
DIN EN ISO 29981
Milk products - Enumeration of bifidobacteria - Colony-count technique (ISO 29981:2024); German and English version prEN ISO 29981:2025
DIN EN ISO 13647
Water quality - Enumeration of culturable microorganisms - Colony count by spread plate inoculation on R2A medium (ISO/DIS 13647:2025); German and English version prEN ISO 13647:2025