API MPMS 18.1
Manual of Petroleum Measurement Standards Chapter 18 - Custody Transfer Section 1 - Measurement Procedures for Crude Oil Gathered From Small Tanks by Truck
|Publication Date:||1 April 1997|
Scope and Field of Application
These procedures are organized into a recommended sequence of steps for manually determining the quantity and quality of crude oil being transferred under field conditions. These measurements and tests are performed by crude oil truck drivers (COTDs) and other parties who are responsible for the custody transfer and for recording the results of the measurements and tests on run tickets
Since the ownership of the crude oil being gathered may change and the custody is always passed from the storage tank to the transporting truck as the crude oil passes the tank's last fixed outlet flange, accurate custody transfer is extremely important to both the shipper and the carrier. Therefore, all measurements shall be taken carefully and completed to the full satisfaction of all parties or their authorized representatives.