2005ISO 11866-1:2005 Milk and milk products - Enumeration of presumptive Escherichia coli - Part 1: Most probable number technique using 4-methylumbelliferyl--D-glucuronide (MUG)
1997ISO 11866-1:1997 Milk and milk products - Enumeration of presumptive Escherichia coli - Part 1: Most probable number technique