ASTM D374

Test Materials: The ASTM D374 thickness test applies to materials such as plastics, metals, paper, and films. The sample should be uniform, free of surface irregularities, and properly conditioned according to the relevant standard for the specific material type.
Test Process: The test involves using a micrometer, caliper, or other measuring devices to determine the thickness of the material at multiple points. The sample’s thickness is measured at specified locations to ensure accuracy and consistency.
Test Result Interpretation: Results are interpreted by calculating the average thickness from multiple measurements. If the sample thickness deviates significantly from the specified tolerance, it indicates non-compliance with the standards outlined in ASTM D374.