The indentation is checked for cracking or loss of adhesion.
When reviewing data generated by ASTM D2794, several variables must be controlled to prevent skewed data: astm d2794 pdf
A: Yes. Appendix X1 of the standard typically provides a detailed conversion table (e.g., 1 kg-cm = 0.868 in-lbf). The indentation is checked for cracking or loss of adhesion
The weight strikes the uncoated back of the panel, forcing the coated side to stretch outward into a convex dome. Reverse impact is generally more severe because it puts the coating under intense tensile stress. Step 3: Dropping the Weight The weight strikes the uncoated back of the
The test method often uses a "staircase" or "up-and-down" approach, where the impact energy is gradually increased by raising the drop height until a failure in the coating is observed. The result is the energy level at which failure first occurs.