API 653 Data Sheets-Pressures

Scope- Maximum internal pressure for tanks in API 650 & 653    650:  F.1.3 & 575:  3.3

Vacuum Box- Normal vacuum required when vacuum testing   650:  8.6.3

Pressure Test- Pressure used when air testing the shell-to-bottom weld (air between bottom fillet welds)  650: 7.2.4.2    & 653:  12.1.6.2

Pressure Test- Pressure used when air testing a repad    650:  7.3.4

Scope- Maximum internal pressure for tanks in API 620   575: 4.3.2