ISO 7402:1993

Microbiology — General guidance for the enumeration of Enterobacteriaceae without resuscitation — MPN technique and colony-count technique

Publication date:   Sep 16, 1993

95.99 Withdrawal of Standard   Aug 16, 2004

General information

95.99 Withdrawal of Standard   Aug 16, 2004

ISO

ISO/TC 34/SC 9 Microbiology

International Standard

07.100.01   Microbiology in general

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 7402:1985

NOW

WITHDRAWN
ISO 7402:1993
95.99 Withdrawal of Standard
Aug 16, 2004

REVISED BY

ABANDON
ISO/WD 7402

WITHDRAWN
ISO 21528-1:2004

WITHDRAWN
ISO 21528-2:2004