BS ISO 6611:2004
Current
The latest, up-to-date edition.
Milk and milk products. Enumeration of colony-forming units of yeasts and/or moulds. Colony-count technique at 25°C
Hardcopy , PDF
English
31-07-2010
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Diluents and culture medium
6 Apparatus and glassware
7 Sampling
8 Procedure
9 Expression of results
10 Repeatability
11 Test report
Bibliography
Describes a method for the detection and enumeration of colony-forming units (CFU) of viable yeasts and/or moulds in milk and milk products by means of the colony-count technique at 25 degrees C.
| Committee |
AW/5
|
| DevelopmentNote |
Reviewed and confirmed by BSI, October 2007. (09/2007) Supersedes BS 4285-3.6(1986). (07/2010)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies a method for the detection and enumeration of colony-forming units (CFU) of viable yeasts and/or moulds in milk and milk products by means of the colony-count technique at 25 °C.
The method is applicable to
milk, liquid milk products,
dried milk, dried sweet whey, dried buttermilk, lactose,
cheese,
acid casein, lactic casein, rennet casein,
caseinate, acid whey powder,
butter,
frozen milk products (including edible ices),
custard, desserts, fermented milk and cream.
NOTE This method is not suitable for a large number of thermolabile yeasts (in fresh cheese). In such cases the agar-surface-plating method is preferred.
| Standards | Relationship |
| ISO 6611:2004 | Identical |
| ISO 5725-1:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions |
| ISO 6887-1:2017 | Microbiology of the food chain — Preparation of test samples, initial suspension and decimal dilutions for microbiological examination — Part 1: General rules for the preparation of the initial suspension and decimal dilutions |
| ISO 7218:2007 | Microbiology of food and animal feeding stuffs — General requirements and guidance for microbiological examinations |
| ISO 707:2008 | Milk and milk products — Guidance on sampling |
| ISO 8261:2001 | Milk and milk products General guidance for the preparation of test samples, initial suspensions and decimal dilutions for microbiological examination |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
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