Abstract
Gives general guidance for the enumeration of Enterobacteriaceae present in products intended for human consumption or animal feeding stuffs: 1) by calculation of the most probable number after incubation at 35 °C or 37 °C in liquid medium (MPN technique), or 2) by counting colonies in a solid medium after incubation at 35 °C or 37 °C (colony-counting technique). For low numbers, the MPN method is preferable, otherwise the colony-count method is preferred.
General information
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Status: WithdrawnPublication date: 1993-09Stage: Withdrawal of International Standard [95.99]
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Edition: 2Number of pages: 10
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Technical Committee :ISO/TC 34/SC 9ICS :07.100.01
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Life cycle
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Previously
WithdrawnISO 7402:1985
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Now
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Revised by
WithdrawnISO 21528-1:2004
WithdrawnISO 21528-2:2004
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