However acceptance or rejection will be based on size, spacing, concentration and type of indication etc.
If indication is conformed as LOF as per UT apart from 20% DAC then its not acceptable as per ASME Section VIII but certain length of Inter pass LOF is acceptable as per API 1104 So its depend upon code of constrruction.
But there is no creteria for acceptance or rejection based on density difference Only Root concvity & undercuts will be accepted or rejected based on density differnece.
Regards
Bharat B. Gole
Date: Thu, 15 Apr 2010 20:16:46 +0530
From: nach_sam@yahoo.com
Subject: [MW:4850] Radiographic film interpretation
To: materials-welding@googlegroups.com
Hi all, In one RT film we have a 10-12 mm spot with density 3.13. The weld density is 3.17 and the parent metal density is 3.3. It is apparently interpass LoF in the 2nd fill pass after hot pass (confirmed by UT, where the indication ht is approx 20%of DAC). Is there any or what is the criteria for acceptance/rejection based on density difference? Rgds, Shashank Vagal |
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