Tam Panel
PSM-5 (Sherwin, Inc.) - Polished
The The PSM-5 Penetrant System
Monitoring Panel provides a quick means of determining the continued
serviceability of liquid penetrant inspection systems: fluorescent or visible;
water-washable; post-emulsifiable, or pre-wash.
The panel verifies that all
elements – penetrant emulsifier, wash, dryer, and developer – are functioning
properly. It brings attention major shifts in the system’s operating parameters.
Sherwin Incorporated manufactures
each PSM-5 panel to P&WA specifications. A stainless-steel panel, 0.090″
thick and measuring 4 x 6 inches. A chrome or grit plated strip runs the length
of one side of the panel. Five cracked starbursts are evenly spaced in the
chrome or grit plating in order of magnitude; the largest is readily visible
with low sensitivity penetrants, while the smallest is difficult to observe
even with high sensitivity materials.
he cracks appear in order of
magnitude; the largest being visible with low sensitivity materials and the smallest
being difficult to detect with even the highest sensitivity materials. The
largest crack centre is about 1/4 inch, the second largest 5/32 inch, the third
3/32 inch, the fourth 1/16 inch, and the smallest about 1/32 inch in diameter.
Adjacent to the chrome plating is
an oxide grit blasted area, considered “medium rough,” and used to monitor
washability and background fluorescence.
There are two versions of the
panel.
- Polished – the chrome plated
section is polished and mirror-like.
- Grit Blasted – the chrome section has been lightly
grit blasted to dull the mirror finish.
While no two panels are identical
– crack patterns vary because chrome plating properties and thickness cannot be
controlled precisely – each panel conforms to P&WA specifications as
confirmed and certified by the Sherwin Incorporated laboratory.
Specification
- Pratt & Whitney (TAM
146040)
- ASTM-E1417
- MIL-STD-6866
Tam Panel PSM-5 (Sherwin, Inc.) - Polished
- Product Code: Tam Panel PSM-5
- Availability: Pre-Order