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Interpretation Response #PI-75-022 ([Wyoming Public Service Commission] [Jon F. Jacquot])

Below is the interpretation response detail and a list of regulations sections applicable to this response.

Interpretation Response Details

Response Publish Date:

Company Name: Wyoming Public Service Commission

Individual Name: Jon F. Jacquot

Location State: WY Country: US

View the Interpretation Document

Response text:

May 21, 1975

Mr. Jon F. Jacquot
Wyoming Public Service Commission
Supreme Court Building
Cheyenne, WY 82002

Dear Mr. Jacquot:

This is in response to your letter of February 18, 1975, concerning the requalification of welders
who have been qualified under Section 3.2 or API Standard 1104.

You asked if a welder who has a multiple qualification under Section 3.2 of API Standard 1104
can requalify for the full scope of his qualification by having a single weld tested (radiograph of a
butt weld, any size) as eluded to in Section 192.229(c) or must he have both a butt and branch
weld destructively tested? This assumes that the welder is requalifying within six months of his
initial qualification or a previous requalification test.

Answer: For welders qualified to make both butt and fillet welds by the multiple qualifications
test of API Standard 1104, either type of weld can be destructively tested to comply with Section
192.229(c) since only one weld is required to be tested. However, a butt weld does not have to
be destructively tested to comply with Section 192.229(c) if it is nondestructively tested and
found acceptable under Section 6 of API Standard 1104.

I trust this satisfactorily responds to your question.



Joseph C. Caldwell
Office of Pipeline Safety

Regulation Sections

Section Subject
192.229 Limitations on welders and welding operators