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ISO 7251:1993

Microbiology — General guidance for enumeration of presumptive Escherichia coli — Most probable number technique

Standard Details

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.

General Information

Status : WITHDRAWN
Standard Type: Main
Document No: ISO 7251:1993
Document Year: 1993
Pages: 7
Edition: 2

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WITHDRAWN
ISO 7251:1993
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