Pacific Interstate Offshore Company

Second Revised Volume No. 1

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Effective Date: 01/01/1994, Docket: RS92- 73-001, Status: Effective

Original Sheet No. 32 Original Sheet No. 32 : Effective

GENERAL TERMS AND CONDITIONS (cont'd)

3. MEASUREMENT (cont'd)

3.2 (cont'd)

(d) The specific gravity of the gas shall be

determined by continuous use of a recording

gravitometer or any other industry accepted

instruments and methods for determining

specific gravity as may be agreed upon by

Shipper/Shipper's Agent and Transporter and so

installed that it will monitor the specific

gravity of the gas measured; the arithmetic

average specific gravity recorded during

periods of flow only shall be deemed the

specific gravity of the gas for the purpose of

calculating quantities.

(e) The total heating value of the flowing gas

shall be determined by use of a continuous

recording calorimeter of a make and type as may

be agreed upon by Shipper/Shipper's Agent and

Transporter and so installed that it will

monitor the total heating value of the gas

measured or any other method generally accepted

in the industry and mutually agreed upon.

(f) The deviation of the gas from Boyle's Law, used

in the computation of quantities, shall be

determined by tests at intervals of one month

or at such other intervals as are found

necessary; a complete analysis of the physical

and chemical properties of the gas shall be

made and the determination of deviation shall

be made by applying this data to tables of

"Supercompressibility Factors for Natural Gas"

published by the AGA in conjunction with AGA

Measurement Committee Report No. 3, or as such

rules, regulations, and factors may be amended

from time to time, or any other methods of

determination as may be mutually agreed upon.

3.3 Quantities of gas received by Transporter for

transportation shall be analyzed as follows: