Caprock Pipeline Company

First Revised Volume No. 1

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Effective Date: 01/01/1993, Docket: RS92- 58-001, Status: Effective

Original Sheet No. 14 Original Sheet No. 14 : Effective


nitrogen mole fraction values for the gas delivered or

received as may be required to compute such adjustments in

accordance with standard testing procedures. At Caprock's

option, equations for the calculation of supercompressibility

may be taken from either the AGA Manual for the Determination

of Supercompressibility Factors for Natural Gas, dated

December 1962 (also known as the "NX-19 Manual") or AGA Report

No. 8, dated December 1985, Compressibility and

Supercompressibility for Natural Gas and Other Hydrocarbon

Gases, latest revision.

(I) Assumed Atmospheric Pressure: An assumed

atmospheric pressure as defined in the Agreement for the

respective Delivery and Redelivery Point(s) shall be utilized

for measurement and calculation purposes, irrespective of any

variation of the actual atmospheric pressure from the assumed

atmospheric pressure.

(J) Gross Heating Value: At least quarterly the Gross

Heating Value of the gas delivered at the Redelivery Point

hereunder shall be determined by calculating the Gross Heating

Value from an on-line chromatographic or a gas analysis of a

spot or continuous gas sample. The spot or continuous sample

shall be taken at least quarterly and such sample shall be

taken at a suitable point on the facilities to be

representative of the gas being metered.

(K) Other Tests: Other tests to determine water

content, sulfur, and other impurities in the gas shall be

conducted by Caprock as necessary and shall be conducted in

accordance with standard industry testing procedures. The

party requested to perform such test(s) shall bear the cost of

test(s) only in the event the gas tested is determined not to

be within the applicable specification(s), otherwise the

requesting party shall bear the cost of such test(s).

(L) New Test Methods: If at any time during the term

hereof a new method or technique is developed with respect to

gas measurement, such new method or technique may be

substituted for the method set forth in this Article when such

methods or techniques are in accordance with the currently

accepted standards of the American Gas Association, if

mutually agreed upon by the parties.

4.13 Right of Inspection: Caprock or Shipper shall have the

right to inspect equipment installed or furnished by the other or

third party operators and the charts and other measurement or

testing data of all such parties at all times during business hours;

but the reading, calibration and adjustment of such equipment and

changing of charts shall be done by Caprock, or its designee, unless

agreed to otherwise by the parties.