West Texas Gas, Inc.
First Revised Volume No. 1
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Effective Date: 05/01/1998, Docket: RP98- 25-005, Status: Effective
First Revised Sheet No. 11 First Revised Sheet No. 11 : Effective
Superseding: Original Sheet No. 11
GENERAL TERMS AND CONDITIONS
2.2 Specific Gravity: The gas delivered by Seller to Buyer
shall not have a specific gravity greater than 0.77 or less than
0.625 when compared with dry air at the same temperature and
pressure, air being taken as 1.0; provided, however, the specific
gravity may vary beyond such limits if approved by Buyer.
3.1 Unit of Volume: The unit of volume for purposes of sales and
billing shall be one (1) dth. The number of dth delivered shall be
determined by multiplying the number of Mcf of gas delivered by the Heat
Content of such gas in Btu per cubic foot, and multiplying that product
by 0,001. The unit of volume for purpose of measurement shall be 1,000
cubic feet of gas at a base temperature of 60 degrees Fahrenheit and an
absolute pressure of 14.65 pounds per square inch. The readings and
registration of the metering equipment hereinafter provided for shall
be computed in terms of such volume.
3.2 Orifice Meter Computations: For meters of the orifice type, the
volume of gas measured shall be computed in accordance with the
specifications published April 1955 as Gas Measurement Committee Report
No. 3 of the American Gas Association and any modifications and
amendments thereto. Factors required in the computations to be made
in accordance with such Report No. 3 shall be determined from the
(a) Flowing Temperature: The temperature of the natural gas flowing
through the meter shall be obtained by the use of a recording
thermometer. The average temperature recorded each day while the meter
is in service shall be used in computing measurements.
(b) Deviation from Boyle's Law: Deviation from Boyle's Law shall be
verified at least once each year, or oftener if found necessary in
practice. Tests shall be made in a manner and with apparatus approved
by the United States Bureau of Mines or by such other apparatus as is
satisfactory to Buyer and Seller.
(c) Specific Gravity: The specific gravity of the gas shall be
determined monthly, or oftener if found necessary in practice. If gas
supplied by Seller to Buyer is secured from more than one source of
supply, the specific gravity shall be obtained by the use of a
continuous gas sampler or a recording gravitometer.