North Baja Pipeline, LLC

Original Volume No. 1

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Effective Date: 08/12/2002, Docket: RP02-363-000, Status: Effective

Original Sheet No. 111 Original Sheet No. 111 : Effective

GENERAL TERMS AND CONDITIONS OF SERVICE

(Continued)

4. MEASUREMENTS

4.1 Metering: The gas shall be metered by one or more orifice,

turbine, ultrasonic, displacement or other-type meters, at the

discretion of NBP. All meters shall be installed and maintained,

and volumes shall be measured, in accordance with applicable

A.G.A. standards for the meter in question.

4.2 Specific Gravity: The specific gravity of the gas delivered

hereunder shall be determined from the read-outs of continuously

operating measuring instruments. The method shall consist of one

of the following:

(a) gravitometer

(b) gas chromatography

(c) other instruments acceptable to both parties

Analysis of chromatograph shall comply with the standards set

forth in ASTM D 1945. Calculation of the specific gravity from

compositional analysis by gas chromatography shall comply with the

standards set forth in ASTM D 3588. Measurement of the specific

gravity with a gravitometer shall comply with the standards set

forth in ASTM D 1070.

4.3 Flowing Temperature: Flowing gas temperature shall be

continuously measured and used in flow calculations.