Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

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Effective Date: 01/31/2008, Docket: RP08-130-000, Status: Effective

Original Sheet No. 207 Original Sheet No. 207 : Effective

 

GENERAL TERMS AND CONDITIONS

(Continued)

 

4. MEASUREMENT OF GAS (Continued)

 

4.4 Temperature and Specific Gravity. The following measurement factors

shall be given due consideration.

 

(a) The temperature of the natural gas flowing through each

meter shall be an assumed temperature arrived at by agreement or

the actual measured temperature.

 

(b) The specific gravity of the gas shall be determined by the

party operating the meter by calculation, adjusted for any

difference between the specific gravity in the ideal state and in

the real state in accordance with published procedures accepted by

the American Gas Association.

 

4.5 Notice of Equipment Tests. Unless otherwise agreed to by the

parties, the party operating the measurement facilities shall give notice

to the other party of the time and location of all tests of gas delivered

hereunder or of any equipment used in measuring or determining the nature

or quality of such gas, in order that such other party may conveniently

have its representative present. Should the non-operating party

reasonably not be satisfied with any such test, it shall so notify the

operating party and the operating party shall perform such retests as may

be necessary to assure an accurate test.

 

4.6 Meter Testing. The accuracy of measurement equipment shall be

verified at reasonable intervals by the party operating such equipment,

and if requested, in the presence of representatives of the other party,

unless otherwise agreed to by the parties. If either party notifies the

other that it desires a special test of any measurement equipment, the

operating party shall cooperate to secure an immediate verification of

the accuracy of such measurement equipment and joint observation of any

adjustments. The payment for all such tests shall be borne by the party

requesting the test, unless otherwise agreed to by the parties.

 

4.7 Check Meters and Non-Interference. Either party may install and

operate check meters at its option and expense to check the other party's

primary measurement equipment, but measurement of gas shall be by the

measurement equipment of the parties identified in Section 4.3. Such

check meters shall be installed so as not to interfere with the operation

of the primary measurement equipment of such parties. The parties shall