Transwestern Pipeline Company, LLC

Third Revised Volume No. 1

Effective Date: 10/23/2006, Docket: RP06-604-000, Status: Effective

First Revised Sheet No. 106 First Revised Sheet No. 106 : Effective

Superseding: Original Sheet No. 106

GENERAL TERMS AND CONDITIONS

(continued)

4.6 Deviation of the natural gas from Boyle's and Charles' Laws shall be calculated as per AGA Par

Research Project NX-19 or by AGA Transmission Measurement Committee Report No. 8, as may be

amended from time to time. The gas analysis required by Section 4.5 above shall be used for

the chemical composition of the gas as required for calculation by NX-19 or AGA-8.

5. MEASURING STATIONS

5.1 Measuring Station:

A. Measurement facilities installed and operated hereunder shall include standard orifice

meters, turbine or standard displacement meters, or any other method mutually agreed upon

by the interconnecting parties, and other necessary measuring equipment by which the

quantity of gas hereunder shall be measured. The measurement facilities, including all