I have done remastering by importing one unparametric model, i have to check my parametric model within in the tolerance of unparametric model or not.
The first check I would do on imported data would be Examine Geometry, to do an overall general check on the individual faces.
To check quality of a surface model and the deviation between faces then you should use the VDA 4955 compliance checker. Can be run as command or in Check-Mate test, where you will also find check for SASIG-PDQ. Both of these are used in the automotive industry to check quality of geometry.
Note also in NX 11 the Surface Continuity analysis command now works on multiple faces.