Cleaning and Sterilization
11-10 Maintenance, Cleaning & Troubleshooting
10 Extract the gas mixture from the sterilizer as follows:
WarningWarning
Comply with OSHA standards
*
. Do not vent sterilizer gas to the
room, but vent only outdoors or to a suitable, evacuated
container, depending upon state, provincial, or country environ-
mental regulations. (If the mixture is captured, it can be sepa-
rated commercially and the component gases re-used.)
*
See “References” on page 11-11.
a. Pump the gas mixture out of the chamber until you ob-
tain a vacuum of -26 inHg +/- 1 (-12.77 psig +/-.49), re-
turning the mixture to a suitable evacuated container.
b. Return the sterilizer chamber to ambient pressure by in-
troducing air that has been bacterially filtered.
11 Air-wash the chamber and material as follows:
a. Apply -26 inHg +/- 1 (-12.77 psig +/- .49) vacuum to the
chamber and processed material again, to remove residu-
al EO. The vacuum pump must be vented to the out-
doors.
b. Return the sterilized chamber to ambient pressure by in-
troducing air that has been bacterially filtered.
12 Continue with the “Aeration Procedure” (following).
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