Hi guys,

I have been staring at the screen for ages now and I cant for the life of me figure out what will be the NDT requirement for ASME B31.8


The closest thing I could find (from 2003 edition) was this

In addition, a certain percentage of the welds shall
be examined through radiographic examination, ultrasonic
testing, magnetic particle testing, or other comparable
and acceptable methods of nondestructive testing.
The trepanning method of nondestructive testing is prohibited.
The following minimum number of field butt welds
shall be selected on a random basis by the operating
company from each day’s construction for examination.
Each weld so selected shall be examined over its entire
circumference or else the equivalent length of welds
shall be examined if the operating company chooses to
examine only a part of the circumference of each. The
same minimum percentages shall be examined for double
ending at railhead or yard:
(1) 10% of welds in Location Class 1
(2) 15% of welds in Location Class 2
(3) 40% of welds in Location Class 3
(4) 75% of welds in Location Class 4
(5) 100% of the welds in compressor stations, and
at major or navigable river crossings, major highway
crossings, and railroad crossings, if practical, but in no
case less than 90%. All tie-in welds not subjected to a
pressure proof test shall be examined.

Which is freakin vague....didnt even bother to say if the code prefers UT/MT/RT - Plus whats Location Class 1-4 anyway

Help please