ISO 7251:1993
Microbiology — General guidance for enumeration of presumptive Escherichia coli — Most probable number technique
Gives general guidelines for the enumeration of presumptive Escherichia coli in products intended for human consumption or feeding of animals, by means of the liquid-medium culture technique and calculation of the most probable number after incubation at 35 °C or 37 °C (this temperature forming the subject of agreement between the parties concerned), then incubation at 45 °C. A limitation of the applicability is imposed by the susceptibility of the method to a large degree of variability.
| Get this standard | Prices exclude GST | |
|---|---|---|
| PDF ( Single user document) |
$126.00 NZD
|
|
| Networkable PDF |
Price varies
|
Keep me up-to-date
Sign up to receive updates when there are changes to this standard
Related Information
Similar Standards
-
BS EN 12128:1998
Biotechnology. Laboratories for research, development and analysis. Containment levels of microbiology laboratories, areas of risk, localities and physical safety requirements
-
BS EN 12296:1998
Biotechnology. Equipment. Guidance on testing procedures for cleanability
-
BS EN 12297:1998
Biotechnology. Equipment. Guidance on testing procedures for sterilizability
-
BS EN 12298:1998
Biotechnology. Equipment. Guidance on testing procedures for leaktightness