This 3M™ Attest™ Indicator is for 132 degrees C vacuum assisted or 121 degrees C gravity steam sterilizers. It provides assurance of sterility by challenging the sterilizer with quantifiable, highly resistant spores. Incubation is for 48 hours.

Biological indicators provide the best assurance of sterility by challenging the sterilizer with quantifiable, highly resistant spores. Biological indicators are used for load control monitoring which is the process by which a load is monitored and released based on the result of a biological indicator (BI) in a test pack.