MidContinent Express Pipeline LLC

Original Volume No. 1

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Effective Date: 04/10/2009, Docket: RP09-136-000, Status: Effective

Original Sheet No. 233 Original Sheet No. 233

GENERAL TERMS AND CONDITIONS

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17. MEASUREMENT

17.1 UNIT OF MEASUREMENT AND METERING BASE

The volumetric measurement base shall be one (1) cubic

foot of Gas at a pressure base of fourteen and seventy-three

hundredths pounds per square inch absolute (14.73 psia), at a

temperature base of sixty degrees Fahrenheit (60 degrees F.), and

without adjustment for water vapor.

17.2 ATMOSPHERIC PRESSURE

For the purpose of measurement, calculations, and meter

calibration, the average absolute atmospheric (barometric) pressure

shall be based on the actual altitude of each point of measurement

irrespective of variations in natural atmospheric pressure from time

to time. In the event electronic computer measurement is used, the

absolute Gas pressure will be measured directly, using an absolute

pressure measuring device for continuous input to the electronic

computer.

17.3 TEMPERATURE

The temperature of the Gas shall be determined at the

points of measurement by means of a properly installed recording

thermometer or continuous electronic transducer input to a computer

of standard manufacture selected by MEP to be installed in

accordance with the recommendations applicable to the standards for

the metering equipment. The arithmetic average of hourly

temperatures for each Day shall be used in computing temperatures of

the Gas during such Day for conventional chart measurement. In the

event electronic computer measurement is used, average Daily

temperature will be computed as a running average of data determined

during each computer scan.

17.4 DETERMINATION OF HEATING VALUE AND SPECIFIC GRAVITY

At the option of MEP, the heating value of the Gas may

be determined by the use of a chromatograph, a continuous Gas

sampler or by taking spot Gas samples.