Mikrobiologie potravinového řetězce - Horizontální metoda průkazu a stanovení počtu bakterií čeledi Enterobacteriaceae - Část 1: Průkaz bakterií čeledi Enterobacteriaceae (Norma k přímému použití jako ČSN).
NORMA vydaná dňa 1.3.2018
Designation standards: ČSN EN ISO 21528-1
Classification mark: 560096
Catalog number: 503967
Publication date standards: 1.3.2018
The number of pages: 32
Approximate weight : 96 g (0.21 lbs)
Country: Czech technical standard
Kategória: Technické normy ČSN
This document specifies a method, with enrichment, for the detection 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 method is applicable
- when the microorganisms sought are expected to need resuscitation by enrichment, and
- when the number sought is expected to be below 100 per millilitre or per gram of test sample.
A limitation on the applicability of this document is imposed by the susceptibility of the method to a large degree of variability (see Clause 11).
NOTE: Enumeration can be carried out by calculation of the most probable number (MPN) after incubation in liquid medium. See Annex A