ASTM A53/A53M-22: Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless. ​

ASTM A106/A106M-19a: Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service.

ASTM A135/A135M-21: Standard Specification for Electric-Resistance-Welded Steel Pipe.

ASTM A312/A312M-22: Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes.

ASTM A790/A790M-22: Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe.

ASTM A335/A335M-21a: Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service.

ASTM E2929-18: Standard Practice for Guided Wave Testing of Above Ground Steel Piping with Magnetostrictive Transduction.

ASTM E2775-16: Standard Practice for Guided Wave Testing of Above Ground Steel Pipework Using Piezoelectric Effect Transduction.

ISO 18211:2016: Non-destructive testing — Long-range inspection of above-ground pipelines and plant piping using guided wave testing with axial propagation.

IIW-COMISSION V-EN ISO (TC135/SC3).

API 571-2020: Damage Mechanisms Affecting Fixed Equipment in the Refining Industry.

ASTM E1316-22a: Standard Terminology for Nondestructive Examinations.

BSI-BS 9690-1: 2011; BSI-BS 9690-2: 2011.

ANSI / API 5L: X42 - X120.

ASME ARTICLE 18.

NACE TG 410 - 2014.

TUV certification: GUL GWT procedure certified under EN standard 14748.