Microbiology. General guidance for the enumeration of coliforms. Most probable number technique.

Main informations

Collections

National standards and national normative documents

Publication date

July 1991

Number of pages

11 p.

Reference

NF ISO 4831

ICS Codes

07.100.01 Microbiology in general

07.100.30 Food microbiology

Classification index

V08-016

Print number

1 - 01/07/1991

International kinship

ISO 4831:1991

Replaced standards (1)

NF V08-016

November 1978

Standard Cancelled

Agricultural food products. General guidance for the enumeration of coliforms. Most probable number technique at 30 degrees C.

Standard replaced by (1)

NF ISO 4831

October 2006

Standard Current

Microbiology of food and animal feeding stuffs - Horizontal method for the detection and enumeration of coliforms - Most probable number technique

ISO 4831:2006 gives general guidelines for the detection and the enumeration of coliforms. It is applicable to products intended for human consumption and for the feeding of animals, and to environmental samples in the area of food production and food handling. Enumeration is carried out by calculation of the most probable number (MPN) after incubation in a liquid medium at 30 °C or 37 °C. This enumeration method is applicable when the number sought is expected to be in the range 1 to 100 per millilitre or per gram of test sample.

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