Sea Robin Pipeline Company, LLC

Second Revised Volume No. 1

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Effective Date: 12/31/2004, Docket: RP05- 87-000, Status: Effective

Original Sheet No. 173 Original Sheet No. 173 : Effective







13. MEASUREMENT (Continued)


measuring party so that it will properly record the specific

gravity of the gas flowing through the meter or meters, or by

the use of a chromatograph, or other device of standard

manufacture. The specific gravity shall be either (1) recorded

using charts, digital recorders, etc., in which case an

arithmetic average (to be determined during the period of time

during which flow was occurring at the location of the specific

gravity recorder) of such record shall be the specific gravity

of the gas being measured, or (2) used for flow computations in

electronic flow computers in which case the value of the

specific gravity being measured will be used as appropriate in

such computations. If a specific gravity measuring device is

not installed or available at an appropriate location, then

specific gravity shall be determined by a mutually agreeable



13.6 Adjustment for Supercompressibility


Adjustment for the effect of supercompressibility of gas shall

be made according to the provisions of AGA Report No. 3 using

Par Research Project NX19 or AGA-8 procedures, for the average

conditions of pressure, flowing temperature and specific

gravity at which the gas was measured during the period under

consideration and including the proportionate values of carbon

dioxide and nitrogen in the gas delivered in the computation of

the applicable supercompressibility factors. Each party agrees

to exercise due diligence in obtaining initial carbon dioxide

and nitrogen fraction values and to obtain subsequent values of

these components as may be required from time to time but not

less than semi-annually.


13.7 Operation


The measuring stations shall be equipped with, as specified by

Sea Robin, primary and secondary measuring devices of standard

make and design, commonly accepted in the industry, so as to

accomplish the accurate measurement of gas delivered hereunder.