Biocidal gas sterilisation and gas leakage determination

Abstract From the Canadian patent

The novel concept of and methods and apparatus, for, timely determination of potentially harmful biocidal gas leakage from a pressurized chamber during sterilizing operations are disclosed. Biocidal gas make-up values are monitored during the sterilizing phase to provide prompt warning of biocidal gas leakage. In one embodiment the, timing of preselected pressure increment gas make-up charges are measured and compared to minimum acceptable gas make-up charge times. In addition, absorption of biocidal gas by the load can be compensated for in sterilizing operations where load absorption is a significant factor. Also, provision is made for predicting gas absorption by the load from steam …