Description
Specification:
The Browne Biological Indicator should be incubated at 57 C for no longer than 48 hours following exposure and the results read approximately every 12 hours. If spores survive the sterilization cycle, the culture medium will turn yellow (positive). If the spores have been killed the culture medium will retain the original purple colour.
Applicable Standards:
- ISO 11138
- European Pharmacopoeia
- USP XXVI
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