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6 Disinfection system Sirona Dental Systems GmbH
6.1 Microbiological water test
59 06 511 D 3386
16
D 3386.103.01.06.02
6
Disinfection system
6.1 Microbiological water test
Must be performed after a working pause of more than
one week.
Use a “Total Count Tester” for this test. The first three
testers will be supplied free of charge if you return the
attached coupon.
Please indicate your address and the serial number
of the chair (see “Installation Report / Warranty
Passport”). Additional testers can be ordered under
Order No. 58 53 775.
ATTENTION
The “Total Count Tester” has a maximum durability of
1 year after receipt.
The cardboard disk contains a dehydrated nutrient
medium. It is activated by the sample and serves as
culture medium for a number of bacteria. The number of
germs provides information about the hygienic condition
of the water.
Performing the test
• Allow water to run out of the SPRAYVIT syringe for
about 1 minute.
• Then take a water sample from this syringe.
Fill in water up to the upper marking of the container.
To neutralize the disinfecting agent of the water samp-
le, add approx. 1.5 g of fixing salt (sodium thiosulfate).
Do not touch the inside of the container and the part of
the tester to be immersed.
• Immerse the tester in the filled container for 30 se-
conds.
The cardboard disk with the nutrient medium will now
absorb 1 ml of the water sample.
• Remove the tester and shake off excessive water.
Empty the container entirely.
• Place the tester into the empty container for incubati-
on: Keep for either two days at room temperature or for
24 hours at a temperature of 35
°
C.
• Then count all germs found on the surface of the tester.
If the number of germs significantly exceeds 100,
then sanitation is required (see next page).