ISO 11866-2:2005

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ISO 11866-2:2005 is an international standard that specifies a method for enumerating presumptive Escherichia coli (E. coli) in milk and milk products. This method utilizes a colony-count technique at 44°C on membranes. It's particularly useful for samples where the number of presumptive E. coli is high (over 100 per gram or 10 per milliliter).