Reference number
ISO 7402:1993
© ISO 2024
ISO 7402:1993
Microbiology — General guidance for the enumeration of Enterobacteriaceae without resuscitation — MPN technique and colony-count technique
Edition 2
1993-09
Withdrawn
Withdrawn (Edition 2, 1993)

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

  • Status
     : Withdrawn
    Publication date
     : 1993-09
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 2
    Number of pages
     : 10
  • Technical Committee :
    ISO/TC 34/SC 9
    ICS :
    07.100.01 
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