Design and Manufacture:API 600,API 6D,JIS B2073-2083
Inspection and Test:API 598,API 6D,JIS B2003,API 600
End Flange dimension:ASME B16.5,JIS B2212-2214,ASME B16.47A,MSS SP-44,ASME B16.47B,API 605
BW end dimension:ASME B16.25
Face to face:ASME B16.10,JIS B2002
Pressure-temperature ratings:ASME B16.34