TransColorado Gas Transmission Company

Original Volume No. 1

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Effective Date: 05/15/2000, Docket: GT00- 25-000, Status: Effective

First Revised Sheet No. 238 First Revised Sheet No. 238 : Superseded

Superseding: Original Sheet No. 238



10. MEASUREMENT (Continued)


The measurement equipment of Shipper shall be for check

purposes only and, except as expressly provided in these General Terms and

Conditions, shall not be used in the measurement of gas.


10.7 Orifice Meters. All orifice meters shall be installed and gas

volumes computed in accordance with the standards prescribed in ANSI/API

2530 (Orifice Metering of Natural Gas), which incorporates Gas Measurement

Committee Report #3 of the American Gas Association, September 1992,

revised and reprinted, and any subsequent amendments TransColorado may



10.8 Non-Interference. In order to avoid interference with the

operation of the primary measurement facilities, custody transfer meter

run taps will not be shared or used for other than custody transfer by the

operating company.


10.9 Square Root Error. Pulsation filters or other remedial

equipment may be required by TransColorado or the Operator upon the

occurrence of unacceptable square root error ("SRE") or gauge line error.

Unacceptable SRE is defined to be equal to or greater than 0.5% SRE.


In the event of a disagreement between TransColorado and the

Operator on the source and degree of error, Southwest Research Institute,

or a mutually agreeable replacement, will be requested to determine the

source and degree of error. The party deemed responsible for the

pulsation source will incur all costs for the consultation, along with the

installation and remedial devices or filtering equipment as necessary.


10.10 Electronic Flow Computers. TransColorado may install

electronic flow computers to permit the direct computation of gas flows

without the use of charts.


10.11 New Measurement Techniques. If, at any time, a new method or

technique is developed with respect to gas measurement or the