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EVS-ISO 16649-1:2011

Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli - Part 1: Colony-count technique at 44 degrees C using membranes and 5-bromo-4-chloro-3-indolyl beta-D-glucuronide (ISO 16649-1:2001)

General information

Withdrawn from 15.02.2019
Base Documents
ISO 16649-1:2001
ICS Groups
07.100.30 Food microbiology
Directives or regulations
None

Standard history

Status
Date
Type
Name
15.02.2019
Main
EVS-ISO 16649-1:2019
05.12.2011
Main
EVS-ISO 16649-1:2011
This part of ISO 16649 specifies a horizontal method for the enumeration of beta-glucuronidase-positive Escherichia
coli in products intended for human consumption or for the feeding of animals. It uses a colony-count technique
after resuscitation using membranes and incubation at 44 °C on a solid medium containing a chromogenic
ingredient for detection of the enzyme beta-glucuronidase.
WARNING — Strains of Escherichia coli which do not grow at 44 °C and, in particular, those that are
beta-glucuronidase negative, such as Escherichia coli O157, will not be detected.

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EVS-ISO 16649-2:2011

Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli - Part 2: Colony-count technique at 44 degrees C using 5-bromo-4-chloro-3-indolyl beta-D-glucuronide (ISO 16649-2:2001)
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Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English