ISO 7251:1993
Microbiology; general guidance for enumeration of presumptive Escherichia coli; most probable number technique

Standard No.

ISO 7251:1993

Release Date

1993

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Replace By

ISO 7251:2005

Latest

ISO 7251:2005/Amd 1:2023

ISO 7251:1993 history

• 2023 ISO 7251:2005/Amd 1:2023 Microbiology of food and animal feeding stuffs — Horizontal method for the detection and enumeration of presumptive Escherichia coli — Most probable number technique — Amendment 1: Inclusion of performance testing of culture media and reagents
• 2005 ISO 7251:2005 Microbiology of food and animal feeding stuffs - Horizontal method for the detection and enumeration of presumptive Escherichia coli - Most probable number technique
• 1993 ISO 7251:1993 Microbiology; general guidance for enumeration of presumptive Escherichia coli; most probable number technique
• 1984 ISO 7251:1984 Microbiology; General guidance for enumeration of presumptive Escherichia coli; Most probable number technique