API MPMS 5.7 pdf download Manual of Petroleum Measurement Standards Chapter 5—Metering Section 7—Testing Protocol for Differential Pressure Flow Measurement Devices 3 Required Tests 3.1 STANDARD AND NON-STANDARD TESTS Two types of tests are required for this protocol, namely Standard and Non-standard Tests. The purpose of the Stan- dard Test is to test the flow meter in flow conditions that...