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ASTM D 1186 |
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ASTM D 1186 : Standard
Test Method for Nondestructive Measurement of Dry Film Thickness of
Nonmagnetic Coatings Applied to a Ferrous Base
These test methods cover the nondestructive measurement of the dry film
thickness of nonmagnetic coatings applied over a ferrous base material
using commercially available test instruments. The test methods cover
the use of instruments based on magnetic measuring principles only. Test
Method A provides for the measurement of films using magnetic pull-off
gages and Test Method B provides for the measurement of films using
magnetic flux gages.
These test methods are not applicable to coatings that will be readily
deformable under the load of the measuring instruments, as the
instrument probe must be placed directly on the coating surface to take
a reading.
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