ISO 21528-2:2017

ISO 21528-2:2017

June 2017
International standard Current

Microbiology of the food chain - Horizontal methods for the detection and enumeration of enterobacteriaceae - Part 2 : colony-count technique

ISO 21528-2:2017 specifies a method for the enumeration of Enterobacteriaceae. It is applicable to - products intended for human consumption and the feeding of animals, and - environmental samples in the area of primary production, food production and food handling. This technique is intended to be used when the number of colonies sought is expected to be more than 100 per millilitre or per gram of the test sample. The most probable number (MPN) technique, as included in ISO 21528‑1, is generally used when the number sought is expected to be below 100 per millilitre or per gram of test sample.

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Main informations

Collections

International ISO standards

Publication date

June 2017

Number of pages

15 p.

Reference

ISO 21528-2:2017

ICS Codes

07.100.30   Food microbiology

Print number

2 - 01/06/2018
Sumary
Microbiology of the food chain - Horizontal methods for the detection and enumeration of enterobacteriaceae - Part 2 : colony-count technique

ISO 21528-2:2017 specifies a method for the enumeration of Enterobacteriaceae. It is applicable to

- products intended for human consumption and the feeding of animals, and

- environmental samples in the area of primary production, food production and food handling.

This technique is intended to be used when the number of colonies sought is expected to be more than 100 per millilitre or per gram of the test sample.

The most probable number (MPN) technique, as included in ISO 21528‑1, is generally used when the number sought is expected to be below 100 per millilitre or per gram of test sample.

Replaced standards (1)
ISO 21528-2:2004
August 2004
International standard Cancelled
Microbiology of food and animal feeding stuffs - Horizontal methods for the detection and enumeration of Enterobacteriaceae - Part 2 : colony-count method

<p>ISO 21528-2:2004 specifies a method, without pre-enrichment, for the enumeration of Enterobacteriaceae. It 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.</p> <p>Enumeration is carried out by counting colonies in a solid medium after incubation at 37 °C.</p> <p>This technique is recommended when the number of colonies sought is expected to be more than 100 per millilitre or per gram of the test sample.</p>

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