5)
Low-Temperature System:
a)
Sterilizers equipped with supplemental, low-temperature
system should be tested with chamber loaded to full capacity
with 1 x 150 mm test tubes or 18 x 150 mm test tubes and
500 ml Erlenmeyer flasks. Test tubes shall contain 7
milliliter of water, and flasks, 150 milliliters. Test
tubes and flasks shall be capped but not sealed. Test tubes
should be contained in wire baskets.
b)
Test Procedure:
-
Insert thermocouples in test tubes as follows:
Step 1
one nearest the center, one nearest the
lower-front center, and one nearest the
upper-rear center. Finally connect the
thermocouple to a recording potentiometer.
-
Close sterilizer door steamtight and operate
Step 2
the sterilizer to process the load at 78 C
(172 F), for 45 minutes.
-
Actuate the potentiometer.
Step 3
-
Following the cycle, open the door and allow the
Step 4
load to cool ambient temperature.
-
Repeat steps 2, 3, and 4 but in steps 2 and 3
Step 5
operate sterilizer to allow water in test tubes
to rise to 88 C (190 F).
-
Repeat steps 2 and 3 but operate sterilizer to
Step 6
allow water in the test tubes to rise to 104 C
(219 F).
c)
The temperature variances in the test tubes, as indicated by
the potentiometer readings, should not exceed the contract
specifications requirements and/or manufacturers' standards
during each 45 minute test processing-temperature periods.
B.
Surgical Instrument Washer - Sterilizers:
1)
Symbols
Item Description
VS-503 ..........Single door Washer-Sterilizer with 400x400x650
mm (16x16x26 inch) chamber, recessed through one
wall.
VS-504 ..........Single door Washer-Sterilizer with 400x400x650
mm (16x16x26 inch) chamber, cabinet enclosed.
VS-505 ..........Double door Washer-Sterilizer with 400x400x650
mm (16x16x26 inch) chamber, recessed through one
wall.
VS-508 ..........Automatic Washer-Sterilizer System, double door,
recessed through two walls.
2)
Visual Examination:
Examine each washer/sterilizer for the
following defects.
a)
Materials not as specified, and obviously damaged,
defective, or not properly suited for purpose intended.
b)
Component parts, assemblies, accessories, and spare parts
for the same classification are not interchangeable.
11710-4
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