3.41.4 ......In-process examination in accordance with para. 344.7 may be substituted for all or part of the
radiographic or ultrasonic examination....
344.7 In-Process Examination
344.7.1
Definition.
In-process examination comprises examination of the following, as applicable:
(a) joint preparation and cleanliness;
(b) preheating;
(c) fit-up,joint clearance,and internal alignment prior to joining;
(d) variables specified by the joining procedure, including filler material;
and:
(1)(for welding) position and electrode;
(2)(for brazing) position, flux, brazing temperature, proper wetting,and capillary action;
(e)(for welding) condition of the root pass after cleaning — external and, where accessible, internal—aided
by liquid penetrant or magnetic particle examination when specified in the engineering design;
(f)(for welding) slag removal and weld condition between passes; and
(g) appearance of the finished joint.
From: mysarah <mechanoldstar@gmail.com>
To: Materials & Welding <materials-welding@googlegroups.com>
Sent: Tuesday, November 8, 2011 12:23 AM
Subject: [MW:12889] exemption for inspection, examination and/or testing
Hello everyone,
I was wondering where I can find inspection and testing exemptions for
ASME B31.3 piping for O&G flow line piping. I'm not sure, but I think
PHMSA Part 192 talks about pipes operating at less than 20% of SMYS in
class 1 locations, and may be class 2 locations with proper compliance
in welding procedure and welder qualification.
I had a construction foreman ask if line pipes that don't see more
than 500psi can be exempt from some of the three (visual, NDE, and
hydro testing), basically to where they can't do all three if the
pressure is low enough and the class location is 1 or may be 2 with
good design of weld and welder qualfication...
Any advice please?
I understand that B31.3 have different applications compared to B31.4
and B31.8. But I could not find anything anywhere about B31.3, and I
think the information in PHMSA part 192 applies to the pipeline side,
and I was considering applying/adopting it as the closest thing.
Anyway,
Do you have anything that gives a clue for exemption for (B31.4 and
B31.8) inspection, examination, and testing or where one can do x-ray
and not have to worry about hydro or vise versa. Especially for low
pressure welded lines in class 1 locations, and may be some class 2
locations (if possible) as long as all fabrications and fabricators
follow qualified procedures in ASME Section IXAlso for B31.3
Thank you very much.
--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
To: Materials & Welding <materials-welding@googlegroups.com>
Sent: Tuesday, November 8, 2011 12:23 AM
Subject: [MW:12889] exemption for inspection, examination and/or testing
Hello everyone,
I was wondering where I can find inspection and testing exemptions for
ASME B31.3 piping for O&G flow line piping. I'm not sure, but I think
PHMSA Part 192 talks about pipes operating at less than 20% of SMYS in
class 1 locations, and may be class 2 locations with proper compliance
in welding procedure and welder qualification.
I had a construction foreman ask if line pipes that don't see more
than 500psi can be exempt from some of the three (visual, NDE, and
hydro testing), basically to where they can't do all three if the
pressure is low enough and the class location is 1 or may be 2 with
good design of weld and welder qualfication...
Any advice please?
I understand that B31.3 have different applications compared to B31.4
and B31.8. But I could not find anything anywhere about B31.3, and I
think the information in PHMSA part 192 applies to the pipeline side,
and I was considering applying/adopting it as the closest thing.
Anyway,
Do you have anything that gives a clue for exemption for (B31.4 and
B31.8) inspection, examination, and testing or where one can do x-ray
and not have to worry about hydro or vise versa. Especially for low
pressure welded lines in class 1 locations, and may be some class 2
locations (if possible) as long as all fabrications and fabricators
follow qualified procedures in ASME Section IXAlso for B31.3
Thank you very much.
--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
Comments