Inspection Bureau
Lloyd's Register
Det Norske Veritas
Bureau Veritas
A.I.B.
Rina
Ispesi
Apave
Alpave
TUV
American Bureau
Germanisher Lloyds

Laboratories and testers
Traction machines (warm test)
Resiliency pendulum
Hbn - Hrc - Hv durometers
Extensimeters
Simulated thermical treatment furnaces
Not destructive test set-up and testers: US DPI MPI
Metallographic and micrographic tests
Corrosiveness tests (Straus, Huey, Pitting)
Ferrite tests