Applying 2235-9 in Sect. VIII Div.1. it is a requirement of the same cc to stamp the nameplate below the U symbol with "UT".

Question: When UT according to the cc is applied to the entire vessel, I mean all joints required to be RT are UT examined,
Is "RT-1" stamping required as well?

Comment: reading the Interpretation below, since there is the possibility of stamping RT-2 and UT, the stamping RT-1 in addition to UT seems to be necessary since it specifies the extent of examination (Full).

Dear all: I request your interpratation, possibly substantiated.
Best regards.
Mauro

Interpretation: VIII-1-04-95
Subject: Section VIII, Division 1 (2001 Edition, 2003 Addenda); UW-11(a) and Code Case 2235-6
Date Issued: May 31, 2006
File: BC04-1455
Question (1): Is it the intent of Code Case 2235-6 that when portions of the vessel meet the requirements
of UW-11(a) for full radiography and portions meet the requirements of Code Case 2235-6 for using ultrasonic
examination in lieu of radiography, the vessel nameplate be stamped with “RT-1”?
Reply (1): Yes, provided the extent of examination, joint efficiencies, and the Code Case are noted on the
Manufacturer’s Data Report and the nameplate is marked under the Code Symbol stamp by applying “UT.”
Question (2): May a vessel nameplate be stamped “RT-2” per the rules of UG-116 of Section VIII,
Division 1 when a complete vessel satisfies the requirements of UW-11(a)(5) and when the spot radiography
requirements of UW-11(a)(5)(b) have been applied, but when ultrasonic examination in accordance with the
provisions of Code Case 2235-6 has been used in lieu of radiography?
Reply (2): Yes, provided the extent of examination, joint efficiencies, and the Code Case are noted on the
Manufacturer’s Data Report and the nameplate is marked under the Code Symbol stamp by applying “UT.”

Yes.

The UG-116 marking requirement of "RT-1","RT-2","RT-3" or "RT-4" is appplicable in addition to marking "UT" below the Code Symbol stamp when using CC-2235

http://cstools.asme.org/csconnect/pdf/R41455.pdf

_________________
A question properly stated is a question half solved.

Yes, I came to this conclusion as well. Thanks.
Mauro

Gonzaga,

Was wondering why entire vessel received UT?

Was the vessel designed with 100% joint efficiency?

If so, it would not need to be RT if 100% UTed.

Thanks in advance,
Robert P.
QA Manager
Western Pneumatics

Code Case allows UT instead of RT.
Code case requires apply UT on nameplate.
Code requires RT1
Seems strange but RT1 doesn't mean radiographic test only, it means that the joint efficiency is 100% for all joints.
I have made my investigation and read the Code carefully, you may believe me: RT1 and UT on nameplate is required in this case, and the MDR to explain.
Best regards.
Mauro

Oh I believe you and thank you Gonzaga, will file away in my library for future use.

Robert P.