Describes 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 4-methylumbelliferyl-ß-D-glucuronide (MUG), calculation of the number of Escherichia coli per gram or per millilitre by the most probable number (MPN) technique after incubation at 30 °C.
WITHDRAWN
ISO 11866-2:1997
95.99
Withdrawal of Standard
Nov 23, 2005
PUBLISHED
ISO 11866-1:2005
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