Fixed tank or vessel that is not part of the processing unit in petrochemical facilities, refineries, gas plants, oil and gas production facilities, and other facilities.
- NOTE: 1 See process tank (3.1.61).
- NOTE: 2 These tanks or vessels are often located in tank farms.
Source: API STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. Global Standards