Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes — Ultrasonic testing for the verification of hydraulic leak-tightness

Specifies requirements and a method for ultrasonic testing. Is applicable to the inspection of tubes with an outside diameter greater than or equal to 168,3 mm, and with an outside diameter-to-thickness ratio greater than or equal to 5. By agreement between the purchaser and manufacturer, it can also be applied to smaller tube diameters.