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Sporicidal Activity of a New Low‐Temperature Sterilization Technology: The Sterrad 50 Sterilizer

William A. Rutala , PhD, MPH, Maria F. Gergen , MT(ASCP) and David J. Weber , MD, MPH
Infection Control and Hospital Epidemiology
Vol. 20, No. 7 (July 1999), pp. 514-516
DOI: 10.1086/501662
Stable URL: http://www.jstor.org/stable/10.1086/501662
Page Count: 3
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Sporicidal Activity of a New Low‐Temperature Sterilization Technology: The Sterrad 50 Sterilizer
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Abstract

ABSTRACT This study was undertaken to evaluate the efficacy of a new low‐temperature sterilization system that recently has been cleared by the Food and Drug Administration, the Sterrad 50. Flat stainless steel carriers were inoculated with approximately 106 Bacillus stearothermophilus spores. These carriers were placed aseptically in the middle of 40‐cm–long stainless steel‐lumened test units of varying diameters (1 mm, 2 mm, and 3 mm). After inoculation, the test units were processed in the Sterrad 50. After sterilization, the carriers were assayed for growth of the B stearothermophilus spores. Our data demonstrated that the Sterrad 50 was highly effective in killing the B stearothermophilus spores (no positive carriers with 30 tests of each lumen‐diameter test unit). The Sterrad 50 is likely to be clinically useful for the sterilization of heat‐sensitive medical equipment.

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