🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN ISO 21528-2:2017:2018 Edition

BS EN ISO 21528-2:2017:2018 Edition

$142.49

Microbiology of the food chain. Horizontal method for the detection and enumeration of Enterobacteriaceae – Colony-count technique

Published By Publication Date Number of Pages
BSI 2018 24
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document 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.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
6 Foreword
7 Introduction
8 1 Scope
2 Normative references
3 Terms and definitions
9 4 Principle
4.1 Preparation of initial suspension and decimal dilutions
4.2 Isolation and selection for confirmation
4.3 Confirmation
4.4 Calculation
5 Diluent, culture media and reagent
6 Equipment and consumables
10 7 Sampling
8 Preparation of test sample
9 Procedure
9.1 General
11 9.2 Test portion, initial suspension and dilutions
9.3 Inoculation and incubation
9.4 Counting and selection of colonies for confirmation
9.5 Subculturing selected colonies
12 9.6 Biochemical confirmation tests
9.6.1 Oxidase reaction
9.6.2 Fermentation test
9.6.3 Interpretation of biochemical tests
10 Expression of results
11 Performance characteristics of the method
11.1 Interlaboratory study
11.2 Repeatability limit
13 11.3 Reproducibility limit
12 Test report
14 13 Quality assurance
15 Annex A (normative) Culture media and reagents
19 Annex B (informative) Method validation studies and performance characteristics
22 Bibliography

Related products

BS EN ISO 21528-2:2017
$142.49