Even opened surface defects, when dirt not to be moved sufficient it can not use DPI.
Regards,
TRAN VAN VUONG
NDT Level III according to SNT-TC-1A
HP +84 912 262 085
Email: vuongtv@phateco.com
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From:
Sent: Tuesday, June 29, 2010 11:35 PM
To:
Subject: Re: [MW:5794] MPI vs DPI
The major difference is the DPI is only for the defects that open to the surface and the MPI for the subsurface defect ( 6 mm deep). Eng.MOHAMMED ABD EL-AZIM HILAL MECHANICAL ENGINEER CSWIP 3.1 - NDT (RT- MT - PT) OTISHAN CONSULTANT ENGINEER 00966-502612218 - 0020103124557
Mpi can be used only on ferromagnetic materials |
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