Iimveliso zentsimbi zase-US zinemigangatho emininzi, ngakumbi kwezi ndidi zilandelayo:

ANSI-Umgangatho weSizwe waseMelika

AISI-Umbutho waseMelika weMigangatho yentsimbi kunye nentsimbi

I-ASTM-Umbutho waseMelika woVavanyo kunye neZixhobo

ASME-Umbutho waseMelika weeNjineli zoomatshini

I-AMS-Iinkcazo zemathiriyeli ye-aerospace (enye yezona zinto zisetyenziswa ngokuqhelekileyo kwishishini le-aviation yase-US, ephuhliswe yi-SAE)

API-Imigangatho yeAmerican Petroleum Institute

AWS-Umgangatho woMbutho we-Welding waseMelika

SAE-UMbutho waseMelika weMigangatho yeeNjineli zeeMoto

MIL-Imigangatho yomkhosi wase-US

Qq-Imigangatho yorhulumente wase-US

API-Imigangatho yeAmerican Petroleum Institute

ANSI-Umgangatho weSizwe waseMelika

ASME-Umbutho waseMelika weeNjineli zoomatshini

I-ASTM-Umbutho waseMelika woVavanyo kunye neZixhobo

Le migangatho, yonke ikwimigangatho yensimbi yase-US, njenge-ASME kwizinto ezisetyenziswa yimigangatho zivela kwi-ASTM, i-valve kwi-API yereferensi eqhelekileyo, kunye nezixhobo zombhobho zensimbi ezithambileyo ukusuka kumgangatho we-ANSI.Umahluko ulele kugxininiso olwahlukileyo lweshishini, ngoko ke ukwamkelwa kwemigangatho eyahlukeneyo.I-API, ASTM, ASME ngamalungu e-ANSI.Imigangatho yeZiko leMigangatho yeSizwe yaseMelika, uninzi olusuka kwimigangatho yobungcali.Kwelinye icala, imibutho yobuchwephesha, imibutho, amaqela anokuthi asekelwe kwimigangatho ekhoyo yelizwe ukuphuhlisa imigangatho ethile yemveliso.Kakade ke, abanakukwazi ukulandela umgangatho wesizwe ukuphuhlisa eyabo imigangatho yombutho.Imigangatho ye-ANSI yeyokuzithandela.I-United States ikholelwa ukuba imigangatho enyanzelekileyo inokunciphisa ingeniso yemveliso.Kodwa ngomthetho kunye namasebe karhulumente ukuphuhlisa imigangatho, ngokubanzi umgangatho onyanzelekileyo.