API MPMS 6.5:1991 (R2012)

Scope and Field of Application This publication deals with the operation and special arrangements of meters, provers, manifolding, instrumentation, and accessory equipment used to measure the loading and unloading of marine bulk carriers. The information provided in this publication is applicable to shore-to-carrier-to-shore measurements of crude oils and refined products. These procedures are not intended to apply to hydrocarbons that require specialized measurements and handling equipment, such as liquefied natural gas (LNG). Applicable carriers may range from river barges to oceangoing ultra large crude carriers (ULCCs). Measuring equipment will, accordingly range from small metering installations that use bare essentials to very large, sophisticated metering installations that incorporate optimal equipment that speed operations and ensure optimum measurements accuracy in vessels that handle large volumes.