
Milk And Milk Products - Enumeration Of Presumptive Escherichia Coli - Part 1: Most Probable Number Technique Using 4-methylumbelliferyl-beta-d-glucuronide (mug)
出版:International Organization for Standardization

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Specifies a combined method for the enumeration of presumptive Escherichia coli and of presumptive coliforms by means of a culture technique involving a liquid medium with MUG, and calculation of the number of presumptive Escherichia coli and/or coliforms per gram or per millilitre by the most probable number (MPN) technique after incubation at 30 degree C.