NDT Specifications

Below are a sample of specifications and standards that we frequently use. If you require testing to a standard not listed, please contact us, we should be able to help or can advise accordingly.

To find out further information about our NDT capabilities please visit out NDT Testing page.

Ultrasonic Testing (UT) - Welds
  • BS EN ISO 17640 - Non-destructive testing of welds. Ultrasonic testing. Techniques, testing levels, and assessment.
  • PD 5500 - Specification for unfired pressure vessels
  • ASME BPVC V - Non-destructive Examination
  • BS EN 1090 - Structural Steel
Ultrasonic Testing (UT) - Forgings/Wrought Products
  • API 6A : Specification for Wellhead and Christmas Tree Equipment
  • ASME B16.34 - Valves Flanged, Threaded, and Welding End - Mandatory Appendix IV Ultrasonic Examination: Procedure And Acceptance Standards
  • ASTM A388/A388M, Standard Practice for Ultrasonic Examination of Steel Forgings
  • BS EN 10160: Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection method)
  • BS EN 10228-3 : Non-Destructive Testing of Steel Forgings - Part 3: Ultrasonic Testing of Ferritic or Martensitic Steel Forgings.
  • BS EN 10228-4 : Non-Destructive Testing of Steel Forgings - Part 4: Ultrasonic Testing of Austenitic and Austenitic-Ferritic Stainless Steel
  • BS EN 10308 - Non-destructive testing. Ultrasonic testing of steel bars
  • DEF STAN 02-729 Part 5 - Ultrasonic Testing, Forgings - Section 18
  • VGS 8.1.2 (Vetco Gray/GE/Barker Hughes)
Ultrasonic Testing (UT) - Castings
  • ASME B16.34 - Valves Flanged, Threaded, and Welding End - Mandatory Appendix IV Ultrasonic Examination: Procedure And Acceptance Standards
  • ASTM A609/A609M, Standard Practice for Castings, Carbon, Low-Alloy, and Martensitic Stainless Steel, Ultrasonic Examination Thereof
  • BS EN 12680-1: Founding. Ultrasonic examination Part 1: Steel castings for general purposes
  • BS EN 12680-2: Founding. Ultrasonic examination. Part 2: Steel castings for highly stressed components
  • BS EN 12680-3: Founding. Ultrasonic testing Part 3: Spheroidal graphite cast iron castings
Magnetic Particle Testing (MT/MPI)
  • API 6A : Specification for Wellhead and Christmas Tree Equipment - Note: Fluorescent method only for PSL3/PSL4
  • ASME B16.34 - Valves Flanged, Threaded, and Welding End - Mandatory Appendix II Magnetic Particle Examination: Procedure And Acceptance Standards
  • ASTM E709, Standard Guide for Magnetic Particle Testing
  • BS EN 10228-1:Non-Destructive Testing Of Steel Forgings. Magnetic Particle Inspection
  • BS EN 1369:2012 Founding – Magnetic particle testing
  • BS EN ISO 9934 Non-destructive testing. Magnetic particle testing - General principles
  • BS EN ISO 17638:2016 Non-destructive testing of welds – Magnetic particle testing
  • BS EN ISO 23278:2015 Non-destructive testing of welds – Magnetic particle testing of welds – Acceptance levels
  • BS ISO 4986:2020 Steel and iron castings. Magnetic particle testing
Dye Penetrant Testing (PT/LPI)
  • API 6A : Specification for Wellhead and Christmas Tree Equipment
  • ASME B16.34 - Valves Flanged, Threaded, and Welding End - Mandatory Appendix III Liquid Penetrant Examination: Procedure And Acceptance Standards
  • ASTM E165/E165M, Standard Practice for Liquid Penetrant Examination for General Industry
  • BS EN 10228-2:2016 Non-destructive testing of steel forgings - Part 2: Penetrant testing
  • BS EN 10228-2:2016 Non-destructive testing of steel forgings - Part 2: Penetrant testing
  • BS EN ISO 3452-1: Non-destructive testing – Penetrant testing – Part 1: General principles
  • BS EN 1371-1 Founding – Liquid penetrant testing – Part 1: Sand, gravity die and low pressure die castings
  • BS EN 1371-2 Founding – Liquid penetrant inspection – Part 2: Investment castings
  • Def Stan 02-729 Part 04 Issue 4 - Requirements for Non-Destructive Examination Methods Part 04: Liquid Penetrant
Visual Inspection (VT)
  • MSS SP-55-2001: Quality standards for steel castings
  • ISO 5817: Welding. Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded). Quality levels for imperfections
  • BS EN ISO 17637: Non-destructive testing of welds. Visual testing of fusion-welded joints
Hardness Testing
  • BS EN ISO 6506: Metallic materials—Brinell hardness test
  • BS EN ISO 6507: Metallic materials—Vickers hardness test
  • BS EN ISO 6508: Metallic materials—Rockwell hardness test