Steris Inc.

Brian C Wojcieck

Christopher M Fricker

Iain McVey

George E Grignol

Stephanie A S Harrington

Paul S Malchesky

Lewis I Schwartz

Giridhar Shamsunder

Robert F Korb

Paul D Walkley, Jr

Kathleen A Hughes

Elijah L Booker, Jr

Jason M Sell

An environmentally friendly decontaminant solution, which may be disposed of after use without posing significant environmental hazards, is formulated without molybdenum-based corrosion inhibitors and preferably is free of all heavy metals. A zeolite-based buffering system optionally replaces phosphate buffers for maintaining the pH of the decontaminant solution at an appropriate pH for effective antimicrobial decontamination. Molybdenum-free decontaminant solutions containing peracetic acid retain their peracetic acid levels, and thus their antimicrobial effectiveness, for longer periods than comparable solutions formulated with a molybdate corrosion inhibitor.

Environmentally friendly peracetic acid decontamination formula with increased performance and chemical stability

A wet chemical indicator for peracetic acid solutions includes an indicator for peracetic acid and an inhibitor. The inhibitor is selected to inhibit a selected peracetic acid concentration in a reproducible sample of a solution containing peracetic acid. The indicator exhibits an observable change when the selected concentration of peracetic acid is exceeded. In this manner, a rapid indication of whether the peracetic acid solution is of a required minimum strength is provided.

Wet chemical indicator for the evaluation of peracetic acid chemistries

A recirculation system for electrochemically activated antimicrobial solutions returns antimicrobial solution which has been depleted of active antimicrobial species to a electrolytic cell for regeneration of the active species. Organic load, which frequently contaminates items to be sterilized or disinfected, such as medical instruments, rapidly depletes the active antimicrobial species in a conventional treatment system, reducing the effectiveness of microbial decontamination by electrochemically activated solutions. By recirculating the antimicrobial through the electrolytic cell, the concentration of active species is maintained at a level at which efficient sterilization is achieved.

Generation of active chlorine in the presence of an organic load from

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Madison, OH, United States of America

Brian C Wojcieck