API MPMS Chapter 6.7 (R2018)

Serves as a guide for the design, installation, operation and proving of meters and auxillary equipment used in metering viscous hydrocarbons. It defines viscous hydrocarbons and describes the difficulties that arise when viscous hydrocarbons are raised to high temperature. The effects of such temperatures on meters, auxillary equipment, and fitting are discussed, and advice and warning to oversome or mitigate difficulties are included.