# ISO 7402:1993 — Withdrawn and superseded ISO standards For ISO 7402:1993, item title is Microbiology — General guidance for the enumeration of Enterobacteriaceae without resuscitation — MPN technique and colony-count technique; status code is 9599; successor is ISO 21528-2:2004 | ISO/WD 7402 | ISO 21528-1:2004; withdrawn / published date is 1993-09-16, recorded from its source on 2026-08-05. - **Identifier:** ISO 7402:1993 _(verified: appears in the quote below)_ - **Item title:** Microbiology — General guidance for the enumeration of Enterobacteriaceae without resuscitation — MPN technique and colony-count technique _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 21528-2:2004 | ISO/WD 7402 | ISO 21528-1:2004 - **Withdrawn / published date:** 1993-09-16 _(verified: appears in the quote below)_ ## What the source says > 14123,IS,,ISO 7402:1993,Microbiology — General guidance for the enumeration of Enterobacteriaceae without resuscitation — MPN technique and colony-count technique,Microbiologie — Directives générales pour le dénombrement sans revivification des Enterobacteriaceae — Technique NPP et méthode par comptage des colonies,1993-09-16,2,['07.100.01'],ISO/TC 34/SC 9,9599,[14122],"[34566,31242,34565]","['en','fr']",10,"
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 i ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).