Elcometer 138 User Manual page 10

R
4 TEST PROCEDURE US NAVY PPI
4.3 AFTER TEST
1 Record the temperature of the solution.
2 Remove the patch from the surface and clean the surface. If required, any adhesive residue from
the patch left on the test surface can be removed by wiping with a cloth moistened with a suitable
solvent. Ensure that the solvent will not damage the surface before use.
3 Rinse all components of the test kit, other than the patch, in fresh, pure water. The components can
then be used again.
4.4 PASS / FAIL CRITERIA
When working in accordance with US Navy PPI 63101-000, the pass / fail criteria is based on the
conductivity of the test sample.
For immersed applications, conductivity due to soluble salts (total ionic) shall not exceed 30µS/cm.
For non-immersed applications, conductivity due to soluble salts shall not exceed 70µS/cm.
Note: The charts produced by the US Navy for the calculation of chloride levels are not required for this test method. Please
contact Elcometer or your local Elcometer supplier if you require a copy of these charts.
USING THE ELCOMETER 138 CONDUCTIVITY METER
Simply record the displayed value.
USING THE ELCOMETER 138 BRESLE SALT METER
The Elcometer 138 Bresle Salt Meter measures the conductivity of the sample but displays the surface
density of salts. The measured conductivity is converted to surface density of salts using the ISO Salt
Mix or IMO PSPC equivalent NaCI conversion factors, dependent on the measurement mode selected.
en-9
: 63101-000 (continued)
www.elcometer.com