Test Panel PSM-5
The PSM-5 test panel is used for testing the penetrant process in whole while human or automatic (semiautomatic) processing according to Pratt & Whitney Aircraft TAM 1460 40. The PSM-5 is a rectangular panel, measuring 10х15 cm, width 2,3 mm, made of stainless steel. The chromium-plated strip on the left side contains 5 star-shaped crack patterns which are arranged according to their sizes. The crack pattern differs from one panel to another. The right half is sandblasted and used to evaluate the penetrant removability. The panel should not to be used for comparison of different penetrant systems.