Technical article

The third edition of API MPMS Chapter 4.8 "Operation of Verification System" was published in July 2021. This standard provides operating information for the verification of single-phase liquid hydrocarbons. This standard can be used as a reference manual for the operation of the verification system.

The requirements of this standard are based on the customary practice of single-phase liquids. Mainly applies to hydrocarbons, but most of the information may apply to other liquids. The special requirements for other liquids shall meet the requirements of the parties concerned.