W & H Lisa, Инструкция по эксплуатации

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APPENDIX 5 HELIX TEST
The Helix Test device is representative of the type A hol-
low load (EN 13060). It consists of a 1,500 mm long tube
that is open on one side and closed with a capsule on the
other side. An indicator strip is placed inside of the cap-
sule.
This test is used to validate the sterilizer performance in terms of hollow A load sterilization, that is:
•
Pre-vacuum efficiency; rapid and uniform steam penetration.
•
Temperature and pressure of saturated steam achieved during the plateau/holding phase.
The Helix Test cycle profile is identical to the profile of the B UNIVERSAL 134 sterilization cycle with the
following differences:
•
The plateau period (PR) is shorter (3 minutes 30 seconds instead of 4 minutes), assuring a 30
seconds security margin.
•
The drying time is reduced to 4 min to not affect the chemical indicator result through drying and to
save time.
How to carry out the test:
•
The test must be performed in an empty chamber (EN 13060) without load but with the standard
chamber accessories (chamber rack and trays) mounted.
•
Place an indicator strip inside the capsule. See the test manufacturer instructions.
•
Close the capsule.
•
Place the Helix Test in the center of a tray in the lowest rack position.
•
Select and start the B&D / HELIX test cycle from the “Test cycles” submenu.
•
Once the cycle is completed, open the sterilizer door and remove the test.
CAUTION: The test will be hot !
For correct interpretation of the test results, refer to the instructions of the
test manufacturer.
•
Remove the indicator strip from the capsule and check the change in colour as explained below:
PASSED FAILED
The chemical indicator has turned dark
.
Part of the chemical indicator has not turned dark;
e.g. due to residual air inside the capsule
.
Insufficient colour change of the indicator strip indicates that there was an air pocket present during the
cycle due to sterilizer malfunction. If the test fails repeatedly call technical service. Follow local/national
guidelines on the frequency of testing.
Indicator strip