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prEN ISO 29981
Milk products - Enumeration of bifidobacteria - Colony-count technique (ISO 29981:2024)
ISO/DIS 13647
Water quality - Enumeration of culturable microorganisms - Colony count by spread plate inoculation on R2A medium
ISO/CD 4833
Microbiology of the food chain - Horizontal method for the enumeration of microorganisms - Colony count at 30 °C
ISO/TC 34/SC 9/AHG 7
Quality control of the colony count technique
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
DIN EN 18279
Soil improvers and growing media - Enumeration of enterococci; German and English version prEN 18279:2026
DIN EN 18280
Soil improvers and growing media - Enumeration of Escherichia coli; German and English version prEN 18280:2026
