Imigangatho
Uyilo kunye nemveliso: API 609, ASME B16.34
Ukuvavanywa kovavanyo: I-API 598
Imilinganiselo yobuso ngobuso: ANSI 609
Esisangqa ekupheleni lobukhulu: ASME B16.5, ASME B16.47A, ASME B16.47B, MSS SP-44, API 605
Lwamanqam-welding isiphelo lobukhulu: ASME B16.25