Test Procedure: Us Navy Ppi 63101-000 - Elcometer 138 User Manual

4 TEST PROCEDURE: US NAVY PPI 63101-000

4.1 BEFORE YOU START
1 Calibrate the conductivity meter, see Section
2 As the test is extremely sensitive, clean latex or nitrile gloves
should be worn during the extraction of soluble salts to prevent
contamination of the surface.
4.2 TEST PROCEDURE
Measurements are to be made randomly over the prepared surface.
Five measurements should be taken every 90m (1000ft ). Five
measurements should be taken for areas less than 90m (1000ft ).
1 Remove the printed protective
backing and foam centre from the
Bresle patch.
2 Apply the patch to the surface
pressing firmly around the perimeter
of the patch to ensure a complete
seal. If using the Elcometer 135C
Bresle Test Patch, remove the clear
protective film cover using the
orange tab.
3 Fill a syringe with 3ml of pure water.
4 Insert the syringe into the patch
through the spongy foam perimeter
and inject 1.5ml of pure water into
the patch. Do not remove the
syringe.
5 With the syringe still in the patch,
reposition the needle and evacuate
any air in the patch.
6 Once the air has been removed,
inject the remaining 1.5ml of pure
water.
7 Remove the syringe from the patch.
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