The TT (TableTop) test card is specifically packaged for daily monitoring of pre-vacuum steam sterilizers operating at 134'C to detect the presence of residual air.
The metal ring provided with each bag of indicator cards is attached through a hole punched in each pouch.
The ring provides weight/stabilization to the pouch and indicator, which prevents it from being moved around inside the sterilizer chamber.
Created by Scott Magee 2021
