KS 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

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 DEGREES, THEN 44 DEGREES.