EN ISO 10893-10:2011 PDF

Overview

EN ISO 10893-10:2011 (ISO 10893-10:2011) defines requirements for automated full-peripheral ultrasonic testing of steel tubes to detect longitudinal and/or transverse imperfections. The method uses shear-wave ultrasonic inspection (conventional or phased array) and applies to seamless and welded steel tubes except submerged arc-welded (SAW) tubes. The standard normally covers tubes with outside diameter (OD) ≥ 10 mm and OD-to-thickness ratio ≥ 5 and can be applied to circular hollow sections. For longitudinal inspections, Lamb wave testing is allowed at the manufacturer’s discretion.

Key topics and requirements

• Scope and applicability
  • Automated full-peripheral ultrasonic shear-wave testing for detection of longitudinal/transverse imperfections.
  • Applies to seamless and welded (except SAW) tubes; OD ≥ 10 mm; typically OD/thickness ≥ 5.
• Testing techniques
  • Conventional shear-wave ultrasonic testing and phased array techniques.
  • Option to use Lamb wave testing for longitudinal imperfections.
• Reference standards and samples
  • Use of reference tubes or samples containing calibrated reference notches for equipment calibration.
  • Defined types and dimensions of reference notches and calibration checks (see standard Annexes).
• Equipment calibration and verification
  • Procedures for adjustment of trigger/alarm levels, periodic calibration checks and recalibration.
• Operational requirements
  • Testing after completion of primary manufacturing steps (rolling, heat treatment, sizing).
  • Tubes must be sufficiently straight and clean for valid inspection.
• Personnel qualification
  • Operators must be qualified per ISO 9712, ISO 11484 or equivalent employer systems.
• Acceptance and reporting
  • Defined acceptance criteria, inspection records and test-report requirements are specified in the standard.
• Annexes
  • Annex A: options for OD/thickness ratio