A disposable sterilization test pack for determining the efficacy of sterilizing equipment comprises a porous base pad having a cavity for receiving the sterilization indicator. Porous pads are disposed on opposite sides of the base pad to retain the sterilization indicator within the cavity, and an...http://www.google.fr/patents/US4636472?utm_source=gb-gplus-shareBrevet US4636472 - Disposable sterilization biological test pack
