Williams Natural Gas Company

Second Revised Volume No. 1

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Effective Date: 10/01/1993, Docket: RS92- 12-003, Status: Effective

Original Sheet No. 270 Original Sheet No. 270 : Superseded









(f) For gas received or delivered hereunder, the heating value of the

gas in BTU's per cubic foot shall be determined by an on-line

chromatograph, recording calorimeter, or other method as may be

mutually agreed upon. Continuous gas samplers and spot samples

may also be used to obtain gas for analysis. The arithmetic

average of the hourly heating value determined during periods of

flow each day by an on-line chromatograph or recording

calorimeter will be the heating value of the gas during such day.


(g) The supercompressibility of the gas shall be determined in

accordance with the recommendations prescribed in A.G.A.

Transmission Measurement Committee Report No. 8, as amended,

titled Compressibility and Supercompressibility for Natural Gas

and Other Hydrocarbon Gases.


Any meter or meters installed by any party shall be installed at or

near each point of receipt or delivery. Such meters shall be of

industry standard type designed to measure the gas at the receipt or

delivery point.


WNG and Shippers shall test their respective chart recorders at

mutually agreed upon intervals; provided, however, that neither shall

be required to perform such test more than once in a thirty-day

period. At any such test the other may have a representative present

if it so desires. Shippers hereunder shall also have the right to

inspect WNG's meter settings at the receipt and delivery points in the

presence of representatives of WNG, request tests of WNG's chart

recorders and be present at such tests; provided, however, that WNG

shall not be required to conduct such tests more than once each month.

Shippers hereunder shall not alter or in any manner disturb,

manipulate or tamper with any of WNG's equipment.


At meters where any party other than WNG is responsible for changing

meter charts, such charts shall be received by WNG no later than 48

hours following the day they are changed.