Environmentally friendly ultra-high sensitivity liquid penetrant inspection process and system

   
   

The present invention relates to a process for inspecting a part to detect defects in the part. The process comprises the steps of placing a part to be inspected in an immersion tank, introducing a mixture of a penetrant dye and a supercritical carbon dioxide solvent into the immersion tank, maintaining the part immersed in the mixture for a time sufficient for the penetrant dye to penetrate any defects in the part, removing the part from the immersion tank, and inspecting the part for the presence of any defects. A system for carrying out the process is also described.

 
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