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- since 1996 -
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Technical Discussions
Kaveh
Kaveh
07:12 Nov-14-2005
DWDI or DWSI

Dear friends

How are techniques (DWDI or DWSI) selected for radiography of pipes. What is the oponion of standards in this case?

Regards
Kaveh


    
 
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A-A-Amiri
Consultant, NDT/QC/WELD INSPECTION
Iran, Joined Nov 2005, 20

A-A-Amiri

Consultant, NDT/QC/WELD INSPECTION
Iran,
Joined Nov 2005
20
05:45 Nov-15-2005
Re: DWDI or DWSI
----------- Start Original Message -----------
: Dear friends
If your intent is criteria for technique selection,in ASME sec.v you can find recommendation for DWDI technique selection as per pipe OD.(Less than 3.5 inches).For DWSI,You can apply up to obtain necessary quality included time loss&cost.

About your idea for Min. applicable UT thickness,your comment is very exactly but my intended was for COMMON UT METHOD which is mobile pulse echo contact method for welding,forging,in shop plate check(over 12.5 mm thk.) & casting .

Regards,
------------ End Original Message ------------




    
 
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