Monday, April 4, 2011

[MW:10592] radiography of longseam by panaromic method

Dear All,
 
Greetings.
 
contractor has carried out radiography of the longseam of a vessel in one shot by panaromic method inspite of doing RT by sinlgle exposure method of each segment of the longseam.
 
while reveiwing RT films it was observed that few films for the longseam are not having penetrameter image on them.
 
kindly inform me whether it is acceptable to do RT of longseam by panaromic method and joint can be accepted with  few films not having penetrameter image  on them. 
 
Construction code for the vessel is ASME SEC VIII DIV 1.
 
Thanks in advance for your valuable suggestions.
 
Asad Azmi

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