API MPMS Chapter 2.8A (R2018)

Three methods for determining the total and incremental volumes of liquids in tanks, oceangoing barges, and integrated tug barge units that have integral hull tanks. The three methods include liquid calibration, calibration by linear mangement, and calibration from vessel drawings. This document and Chapter 2.7 superseded the previous API Standard 2553. A joint API/Energy Institute (EI) standard, it also carries the EI designation Hydrocarbon Management, HM2 Section 5B.