DS/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

Standard No.

DS/ISO 7251:2005

Release Date

2005

Published By

Danish Standards Foundation

Latest

DS/ISO 7251:2005

Scope

This standard gives general guidelines for the detection and enumeration of presumptive Escherichia coli by means of the liquid-medium culture technique and calculation of the most probable number (MPN) after incubation at 37 °C, then at 44 °C. This standard is applicable to . products intended for human consumption and the feeding of animals, and . environmental samples in the area of food production and food handling. WARNING - Some pathogenic strains of Escherichia coli do not grow at 44 °C. A limitation of the applicability of this International Standard is imposed by the susceptibility of the method to a large degree of variability (see Clause 10).

DS/ISO 7251:2005 history

• 2005 DS/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