ISO 9765:1990

Submerged arc-welded steel tubes for pressure purposes — Ultrasonic testing of the weld seam for the detection of longitudinal and/or transverse imperfections

Specifies requirements for the ultrasonic testing of weld seams for the detection of imperfections according to three different acceptance levels. Applies to inspections of tubular products with outside diameters of 150 mm or greater.