ferromagnetic material and
the added weights, before the ferromagnetic weight was
released. Other methods may be used such as a load cell.
I-762 Light Intensity Measurement
The black light or white light intensity (as appropriate)
on the surface of the component shall be no less than that
used in the qualification test. An appropriate calibrated
black light and/or white light meter shall be used for the
tests. Minimum white light or black light intensities shall
meet the requirements of T-777.1 or T-777.2 as applicable.
I-762.1 White Light.The white light intensity shall be
measured at the inspection surface. The white light intensity for the examination shall be no less than what was
used in the qualification.
I-762.2 Black Light.The black light intensity shall be
measured at the distance from the black light in the procedure qualification and at the same distance on the examination specimen. The black light intensity shall be no less
than that used to qualify the procedure. In addition, the
maximum white light intensity shall be measured as background light on the inspection surface. The background
white light for the examination shall be no greater than
what was used in the qualification