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UG84(h)2(b)

UG84(h)2(b)

UG84(h)2(b)

(OP)
When qualifying impact tested procedures, I understand the logic in the paragraph referenced above, however, I came across an interpretation that raises a question, at least in my mind.
It is the answer to the second question in interpretation VIII-92-221, page 617, that leaves me uncertain.
To summarize, the first question concerns using a procedure impact qualified using material in the norm & temp condition, on material in the Q & T condition.  The answer is no, which is what one would expect after referencing the Code paragraph.  The second question asks 'is it permissible to weld a second coupon using Q & T material and impact test the HAZ only?' Answer is no.  In following Code rules it is permissible to run a supplementary test plate for impacts only, so I'm wondering what is required in this case?  Impacts of the HAZ & weld?

RE: UG84(h)2(b)

If you read UG-84 (h) Impact Tests of Weld Procedure Qualifications, reference is made to paragraph (g) in UG-84 (g), and the subparagraphs in the UG-84 (h) below that follow. For qualification purposes, the weld and base metal HAZ of the Q&T coupon would need to be impact tested to meet the code requirements for weld procedure qualification in UG-84 (h).

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