By jperdigon
Date 09-02-2009 01:35
Edited 09-02-2009 01:40
The ASME B31.3 - 2008 in paragraph K341.4.2 said:
K341.4.2 Radiographic Examination
a.- All, girth, longitudinal, and branch connection welds shall be 100% examined as specified in para K344.5 (K344.5 see below)
b.- Ultrasonic examination shall not be substituted for radiography, but may supplement it.
c.- In-process examination (see para 334.7) shall not be substituted for radiography
I do not understand the point b.-, because the point a.- said 100% examined by Radiographic Examination to all weld and the point b.- said the UT shall not be substituted for radiographic, but may supplement it.
Someone can help me understand this point?
K344.5 Radiographic Examination
The method for radiographic examination shall be as specified in
a.- paragraph K302.3.3(c) for castings
b.- BPV Code, Section V, Articule 2 for welds and other components