If you're satisfied that you can detect the cracks of interest adequately (accuracy and time) with your present visual inspection technique, you could stay with that for detection, then use another technique for characterization. As several have already pointed out UT has a lot to offer for...
What do you need to know about the crack(s)? Are orientation, size, shape, location relative to a surface, or other features important? Do you have basis for accepting/rejecting product (acceptance criteria) based on the results of you inspection?
If the cracks of interest penetrate a surface...
There are many standards for lifting equipment, most of which are concensus standards. Some have become law through OSHA adoption.
DOE-STD-1090 is a good reference which lists many of the other standards.
Which standard you need may depend upon what sort of lifting eauipment you are interested...
A downdraft table or a backdraft hood might be better options. Perforated metal or a screen that passes the debris that you want to collect and stops the material you're trying to clean would cover the suction side of both these devices.
The downdraft table can be used as a working surface, or...