The test incorporates a dyed protein* that is bound in the indicator pad. During the instrument wash cycle the color of the indicator pad will change in response to:
AORN recommends a test of mechanical cleaning equipment before its first use, weekly during service and after any major maintenance. AAMI currently recommends at least weekly, and preferably daily testing of mechanical cleaning equipment. Many facilities currently verify the equipment daily before the first load of the day with an indicator on every level of the washer. Some facilities even verify every load.
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