Back

ISO 7954:1987

Microbiology -- General guidance for enumeration of yeasts and moulds -- Colony count technique at 25 degrees C

General information

Withdrawn from 01.07.2008
ICS Groups
07.100.01 Microbiology in general
Directives or regulations
None

Standard history

Status
Date
Type
Name
01.07.2008
Main
ISO 21527-2:2008
01.07.2008
Main
ISO 21527-1:2008
Main
ISO 7954:1987
The method consists in preparing of poured plates using a specified selective culture medium and a specified quantity of a test sample, further dilutions of the test sample. Then aerobic incubation of the plates at 25 degrees centigrade for 3, 4 or 5 days, followed by calculation of the number of yeasts and moulds per gram or per millilitre of the sample from the number of colonies obtained on plates chosen at dilution levels so as to give a significant result.

Required fields are indicated with *

*
*
*
PDF
55.07 € incl tax
Paper
55.07 € incl tax
Standard monitoring
English (PDF 405 KB)

Related products

Main

ISO 21527-1:2008

Microbiology of food and animal feeding stuffs -- Horizontal method for the enumeration of yeasts and moulds -- Part 1: Colony count technique in products with water activity greater than 0,95
Newest version Valid from 01.07.2008
Main

ISO 21527-2:2008

Microbiology of food and animal feeding stuffs -- Horizontal method for the enumeration of yeasts and moulds -- Part 2: Colony count technique in products with water activity less than or equal to 0,95
Newest version Valid from 01.07.2008
Main

CWA 16335:2011

Biosafety professional competence
Newest version Withdrawn from 02.10.2023
Main

CWA 16393:2012

Laboratory biorisk management - Guidelines for the implementation of CWA 15793:2008
Newest version Withdrawn from 02.10.2023

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