amiad Spin Klin Nova Angle, Installation, Operation & Maintenance Instructions Manual

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76 Installation & Operation Manual Spin Klin™ Nova 910101-001009 | 01.2021
10.8. Cleaning complex deposits
If the composition of the deposit is not known, perform the following test:
1. Take 5 discs for the test.
2. Soak 2 discs in a 5% sodium hypochlorite solution.
Preparation of the solution:
Pour 1 cup of water into a small container, then add 1 cup of sodium hypochlorite
(10% NaOCl).
3. Soak 2 discs in a 5% hydrochloric acid solution.
Preparation of the solution:
Pour 1 1/4 cups (= 250ml) of water into a small container, then carefully add
1/4 cup (= 50ml) of hydrochloric acid (30% HCl).
4. Keep one disc as a control.
5. Observe the cleaning process:
If one of the solutions removes all of the deposits, clean the discs in that solution
according to the instructions above.
If neither solution removes the deposits completely, continue with the test
procedure.
6. Remove the discs from both solutions, rinse them well with water and soak them in
the second solution: put the two discs, which have been in the sodium hypochlorite
solution, in the hydrochloric acid solution, and the other way around.
7. Check the cleaning process:
If one of the treatments removes all of the deposits, clean all of the discs following
the same two-step procedure in the exact same order. Rinse the discs well between
the two cleaning processes. If the deposits
haven’t been completely removed, send a
set of untreated discs to the laboratory for further examination.