Tennessee Gas Pipeline Company
FIFTH REVISED VOLUME NO. 1
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Effective Date: 06/01/1997, Docket: RP97- 60-002, Status: Effective
First Revised Sheet No. 309 First Revised Sheet No. 309 : Effective
Superseding: Substitute Original Sheet No. 309
GENERAL TERMS AND CONDITIONS (continued)
III. MEASUREMENT AND SCHEDULING OF RECEIPTS AND DELIVERIES
1. Determination of volume: The volume of gas received and delivered by
Transporter shall be determined as follows:
(a) Unit of Measurement: The service unit of gas scheduled, received, or
delivered by Transporter shall be a dekatherm. Daily quantities
shall be prorated uniformly over periods of hours for scheduling of
service changes during the day.
(b) Dekatherms shall be determined by multiplying the Mcf volume by the
ratio of the heating value per cubic foot to 1,000.
(c) The unit of volume, for the purpose of measurement, shall be defined
as one cubic foot (1cf) of gas at a temperature of sixty degrees
Fahrenheit (60oF), and at a pressure of thirty-three hundredths
pounds per square inch (.33 PSI) above an assumed atmospheric
pressure of fourteen and four tenths pounds per square inch (14.4
PSI) resulting in a pressure of fourteen and seventy-three hundredths
pounds per square inch (14.73 PSI) absolute pressure. One thousand
(1,000) cubic feet shall be denoted as 1 Mcf.
(d) The closing of measurement shall be no later than the fifth (5th)
business day after the close of the production month.
2. Determination of Total Heating Value: The total heating value of gas
received and delivered by Transporter shall be determined as follows:
(a) The total heating value of the gas per cubic foot shall be determined
by taking the average of the heating values as determined each day by
a chromatograph or the chromatographic analysis of a sample of gas,
or any other method mutually agreed upon. The average (flow
weighted) heating value of the gas per cubic foot (Btu/cf) for a unit
of time shall be determined by the total dekatherms divided by the
total Mcf volume multiplied by 1000.
(b) The temperature of the gas passing through the meters shall be
determined continuously by a recording thermometer so installed that
it may properly record the temperature of the gas flowing through the
meters. Arithmetic averages of the temperature recorded each day
shall be used in computing the Mcf of gas.
(c) The specific gravity of the gas delivered shall be determined by the
use of chromatographic analysis or any other method mutually agreed
upon. Determination of the specific gravity and heating value per
cubic foot (Btu/cf) shall be determined at approximately the same
time or from the same analyzed gas sample.