Chapter 2 Compatible Reprocessing Methods and Chemical Agents
11
OSF-3 ENDOSCOPE REPROCESSING MANUAL
For Countries Other Than the United States
ETO Gas Exposure Parameters (Gas mixture 20% ETO/80% CO
2
)
2.6 Steam Sterilization (Autoclaving) of Accessories
These accessories listed as compatible with steam sterilization (autoclaving) in
Table 2.1 can be sterilized by steam within the parameters given in Table 2.4.
When steam sterilizing, follow the hospital’s protocol and the sterilization
equipment manufacture’s instructions.
• Exceeding the recommended parameters may cause
equipment damage.
• The results of sterilization depend on various factors such as
how the sterilized instrument was packed or the positioning,
method of placing and loading of the instrument in the
sterilization device. Please verify the sterilization effects by
using biological or chemical indicators. Also follow the
guidelines for sterilization issued by medical administrative
authorities, public organizations or the infection management
sections at each medical facility, as well as the instruction
manual of the sterilization device.
• Do not steam sterilize the endoscope. Steam sterilization
(autoclaving) will severely damage the endoscope.
• Effective sterilization will not be possible if items are packed
tightly together in the autoclave; always pack items loosely.
Process Parameters
ETO Gas Sterilization Temperature
57°C (135°F)
Pressure 0.1 to 0.17 MPa
(1 to 1.7 kgf/cm
2
)
(16 to 24 psig)
Humidity 55%
Exposure Time 1.75 hours
ETO Gas Concentration 600 to 700 mg/l
Aeration (Minimum)
12 hours in an aeration chamber at 50 to 57
°C (122 to
135°F) or 7 days at room temperature
Table 2.3
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