Okla. Admin. Code § 165:45-7-12

Current through Vol. 42, No. 4, November 1, 2024

Section 165:45-7-12 - Measurement of gas under high pressure

(a) When gas is measured through positive or linear meters at a pressure greater than the pressure base used for measurement, such meters shall either be equipped with reliable pressure-volume recording gauges or compensating devices, as necessary or as otherwise required by the Commission, for accurately determining, in accordance with contracts or other tariff provisions, the quantity of gas that has passed through the meter, or the dial reading of the meter shall be multiplied by a correction factor.

(b) In computing the volume of gas on a given pressure base from a pressure volume chart, the multiplier shall be obtained by the weighted average method, which method consists of determining the average pressure for each unit volume indicated on the chart.

(c) In computing the volume of gas on a given pressure base from an orifice meter chart or charts, the average static pressure and the average differential pressure shall be determined for periods not exceeding one (1) hour. Where pressure variations are extreme during the hour, such average should be based on measurements taken at no more than fifteen (15) minute intervals.

(d) The calculation of volume shall be made in accordance with the Ideal Gas Law and may be corrected for deviations from Boyle's Law, all in accordance with methods and tables generally recognized by and commonly used in the natural gas industry.

Okla. Admin. Code § 165:45-7-12

Amended at 13 Ok Reg 3259, eff 7-25-96