CTHRepealedLegislation
Therapeutic Goods Order No. 54 - Standard for Disinfectants and Sterilants (25/10/1996)
8. Procedure in case of invalid controls8. Procedure in case of invalid controls
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8. Procedure in case of invalid controls
When any control renders the test invalid, the test is to be repeated. Fresh recovery broth is to be used if growth occurred in control 7.1 or if no growth occurred in controls 7.3 or 7.4.
Should disinfectant contamination be indicated by control 7.2 on both occasions, the disinfectant is considered to fail the test. Should inadequate inactivation of the disinfectant be indicated by control 7.4 on both occasions, the test is considered invalid (Note C).