Carolina Gas Transmission Corporation

Original Volume No. 1

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.

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.