Carolina Gas Transmission Corporation
Original Volume No. 1
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Effective Date: 11/01/2006, Docket: CP06- 71-001, Status: Effective
Original Sheet No. 140 Original Sheet No. 140 : Effective
8. MEASUREMENT AND MEASUREMENT EQUIPMENT
8.1 Determination of Quantity. The quantity of gas received and
delivered by Pipeline for Shipper’s account hereunder shall be
measured according to Boyle’s and Charles’ Laws for measurement
of gas under varying pressures and temperatures, with deviations
therefrom in accordance with Good Utility Practice, and shall be
determined as follows:
(a) The unit of measurement under any of Pipeline’s rate
schedules shall be one (1) Dt. The number of Dts delivered
shall be determined by multiplying the number of Mcf of gas
received or delivered, measured on the measurement basis
hereinafter specified, by the Total Heating Value of such
gas, in Dts per Mcf.
(b) The unit of quantity for the purpose of reporting
measurement shall be one (1) Mcf of gas at a temperature of
60º Fahrenheit and a pressure base of 14.73 pounds per
square inch absolute.
(c) The unit of weight for the purpose of measurement shall be
one (1) pound mass of gas.
(d) The temperature of the gas passing through the meters may
be determined by the use of electronic transducers,
recording thermometers, or other temperature measuring
devices. The instantaneous measurement from the electronic
measurement equipment or the arithmetic average of the
temperature recorded each Gas Day shall be used in
computing gas quantities. Where no temperature measuring
device is installed, the temperature of the gas shall be
assumed to be 60° Fahrenheit.
(e) The specific gravity of the gas flowing through the meters
shall be determined by gas chromatographic analysis,
recording gravitometer, or continuous or spot sampling
methods, unless otherwise mutually agreed in writing by
Point Operator and Pipeline. The arithmetic average of the
specific gravity recorded each Gas Day, or other periodic
measurements within a shorter time frame as Pipeline may
select, shall be used for computations.
(f) All measurement equipment and related computations used
shall be in accordance with recommendations published by
AGA or other industry standards as approved by Pipeline.