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Table UW-12 of ASME SEC. VIII DIV 1

Table UW-12 of ASME SEC. VIII DIV 1

(OP)
I want to carry out UT in lieu of RT. Table UW-12 indicates joint efficiency values only if joint is radiographed. Where I could get joint efficiency values for UT joints?

RE: Table UW-12 of ASME SEC. VIII DIV 1

UT is one of the NDE for inspection, but isn't credited for the joint efficiency.

RE: Table UW-12 of ASME SEC. VIII DIV 1

Interpretation VIII-1-16-89 reads as follows:

Question: Do the joint efficiencies listed in Table UW-12 apply when ultrasonic testing is performed in lieu of radiographic examination, when allowed by UW-51?

Reply: Yes.

Hope this helps.

RE: Table UW-12 of ASME SEC. VIII DIV 1

Is interpretation VIII-1-16-89 still valid under the current Code requirements, i.e. 2017 edition?

RE: Table UW-12 of ASME SEC. VIII DIV 1

(OP)

Jano6924 (Mechanical)- I donot find this interpretation in 2017 edition.

Please help.

RE: Table UW-12 of ASME SEC. VIII DIV 1

Interpretations are not issued per edition. The important thing is that volumertic examination either RT or UT is performed. The Section VIII committee has not updated Table UW-12

RE: Table UW-12 of ASME SEC. VIII DIV 1

How would VIII-1-16-89 be allowed under UW-11(a)? I see no general provision in there for UT, other than specifically addressed under UW-11(d)/(e)/(f)/(g).

RE: Table UW-12 of ASME SEC. VIII DIV 1

Quote (XL83NL)

How would VIII-1-16-89 be allowed under UW-11(a)? I see no general provision in there for UT, other than specifically addressed under UW-11(d)/(e)/(f)/(g).

Read UW-51(a)(4)

RE: Table UW-12 of ASME SEC. VIII DIV 1

You can find this interpretation in the ASME web site using the following link:

https://cstools.asme.org/Interpretation/SearchInte...

I cannot talk about the 2017 edition of the code I still don’t get it. I understand that an interpretation remains valid until specifically annulled by the code, or implicitly annulled by other interpretation or by a revision or change in a VIII-1 paragraph.

Please take note that per VIII-1-16-89 interpretation the joint efficiencies of Table UW-12 can be used for ultrasonic testing ONLY WHEN ALLOWED BY UW-51.

Regards.

RE: Table UW-12 of ASME SEC. VIII DIV 1

Quote (DVWE)

Read UW-51(a)(4)
Thanks, you're correct!

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