Mass Measurement. 1. Inferred mass measurement shall be accomplished utilizing a flow-proportional composite sampler, turbine meter, densitometer and flow computer to convert gross volumetrically measured barrels using density in gm/cc at flowing conditions to total pounds mass according to the following formula: TotalPounds = GrossBBLS x MeterFactor x FlowingDensity(gm/cc) x 350.506987 350.506987 is a conversion factor to convert density in gm/cc to pounds /bbl. For polymer grade propylene the composite sampler and densitometer are not required. 2. Direct mass measurement shall be accomplished by utilizing a flow-proportional composite sampler, a Coriolis meter, Coriolis transmitter, and a flow computer to convert mass pulses from the Coriolis transmitter into pounds. Measured pounds mass is calculated according to the following formula: Storage Lease (BUTANE ISOMER) MeasuredMass = MeterPulse x MeterFator For polymer grade propylene the composite sampler is not required.
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Sources: Storage Lease (Duncan Energy Partners L.P.), Storage Lease (Duncan Energy Partners L.P.)