Centerpoint Energy Gas Transmission Company

Sixth Revised Volume No. 1

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Effective Date: 02/28/2003, Docket: RP03-239-000, Status: Effective

Original Sheet No. 333 Original Sheet No. 333 : Effective

GENERAL TERMS AND CONDITIONS

(continued)

2. MEASUREMENT:

2.1 Unit of Volume. The unit of volume shall be one Mcf of Gas at a

temperature base of sixty degrees (60() Fahrenheit and a pressure

base of 14.73 psia, and all volumes shall be converted from actual

conditions to these standard bases in accordance with the Ideal

Gas Laws, corrected by Transporter for supercompressibility in

accordance with the American Gas Association ("AGA") Report No. 8,

as amended from time to time, unless otherwise agreed.

2.2 Conversion to Dth. Conversion to Dth shall be made by multiplying

the volume as otherwise determined hereunder by a fraction the

denominator of which is 1,000 and the numerator of which is the

Gross Heating Value of the Gas per cubic foot in British Thermal

Units.

2.3 Quantity and Heating Value Determination. The quantity and heating

value of Gas received and delivered pursuant to a Service

Agreement under the