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ASTM D 2794 |
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ASTM D 2794 : Standard
Test Method for Resistance of Organic Coatings to the Effects of Rapid
Deformation (Impact)
This test method covers a procedure for rapidly deforming by impact a
coating film and its substrate and for evaluating the effect of such
deformation.
This test method should be restricted to testing in only one laboratory
when numerical values are used because of the poor reproducibility of
the method. Interlaboratory agreement is improved when ranking is used
in place of numerical values.
Coating on .036 inch thick phosphated steel panel shall withstand impact
with 1/2" Gardener impact tester ball at 26 inch pounds direct and
reverse. No grazing or loss of adhesion. Finish shall not be able to be
removed at impact area with 3M Y-9239 tape.
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here for the complete details of the ASTM D 2974 |
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