Link to Third Party Approvals


  • AWS QC-1 American Welding Society Certified Welding Inspector

Fusion Welding Specifications

  • ASME Section IX – Qualification standard for welding and brazing procedures, welders, brazers, and welding and brazing operators
  • AWS D17.1 – Fusion welding for aerospace applications
  • AWS D1.1 – Structural welding code – Steel
  • AWS D1.2 – Structural welding code – Aluminum
  • BAC5975 – Fusion welding of metals
  • BAC5974 – Fusion welding of girth joints in systems tubing
  • AMS-STD-2219 – (cancelled and s/s by AWS D17.1) Fusion welding for aerospace applications
  • SAE-AMS-STD-2219 – (cancelled and s/s by AWS D17.1) Fusion welding ofr aerospace applications
  • MIL-W-8604 – (cancelled and s/s by AWS D17.1) Welding, fusion, aluminum alloys
  • MIL-W-8611 – (cancelled and s/s by AWS D17.1) Welding, fusion, corrosion resistant alloys
  • MIL-STD-2219A – (cancelled and s/s by AWS D17.1) Fusion welding for aerospace applications
  • DPS 10.225 – Gas tungsten arc welding
  • DPS 10.301 – Fusion welding processes
  • PS 22201 – Arc fusion welding aluminum and aluminum alloys
  • PS 22210 – Arc fusion welding
  • PS 22240 – Arc fusion welding titanium
  • PS 22250 – Arc fusion welding steels and corrosion and heat resistant alloys
  • RPS 11.14 – Fusion welding of metals
  • ST0107LA0020 – Fusion welding aluminum

Torch Brazing Specifications

  • BAC5940 – Silver brazing
  • PS 22604 – Brazing low carbon, low alloy or austenitic steels
  • RPS 11.79 – Tube brazing
  • MIL-B-7883 – Brazing of Steels, Copper, Copper Alloys, Nickel Alloys, Aluminum and Aluminum Alloys

Non Destructive Testing (NDT)

  • ASTM E1417 – Standard Pratice for Liquid Penetrant Testing
  • BAC5423 – Penetrant Methods of Inspection 
  • BSS7039 – Liquid Penetrant Inspection (limited see ETW D1-4426 Approvals)


ETW can obtain certification to AWS C3.4, AWS C3.5, and other specifications or codes as needed by your requirements. Please contact estimating for more information.

We can also arrange for NDT requirements such as Penetrant Testing, Radiographic Testing, and Magnetic Particle Testing.

Contact us for more information >>.