ISO 10893-10:2011
[Current]
Non-destructive testing of steel tubes — Part 10: Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections
...ISO 10893-10:2011(E)
ISO 2011 All rights reserved 9
Annex A
(normative)
Testing on longitudinal imperfections of tubes with a ratio
of the specified outside diameter to the average of the specified
thickness range less than 5
A...
...1 When the diameter-to-thickness ratio (D:T) of the tube is less than 5, either A...
...2 When the diameter-to-thickness ratio (D:T) of the tube is less than 5, but greater than or equal to 4,
the internal longitudinal notch depth shall be increased in relation to the external notch depth, as given in
Table A...
