Prying the mixture until it tears off the underlying material is the recommended method for creating separation in the tested layer.

• A. Not Stated
• B. True
• C. False
• D. Not Applicable

Answer: (C)

In this testing context, separating the tested layer should be done without tearing the material beneath it. Prying until tearing is not recommended because it damages the underlying surface, disturbs the boundary, and can alter the layer’s thickness and characteristics, leading to inconsistent and biased test results. A clean, controlled separation preserves the integrity of both layers and yields repeatable measurements—usually by carefully scoring or cutting around the edge and lifting with the proper tool, rather than forcing a tear. Following the established procedure ensures the boundary remains intact and results are reliable.