Ala. Admin. Code r. 770-X-6-.04

Current through Register Vol. 43, No. 1, October 31, 2024

Section 770-X-6-.04 - Measurement Of Gas At Higher than Standard Service Pressure

(1) Pressure Compensating or Pressure-Recording Equipment Required - -When gas is measured to customers through displacement meters at a pressure greater than standard service pressure, such meters shall be equipped with reliable pressure-volume recording gauges or other devices for accurately determining the quantity of gas that has passed through the meter, in accordance with contract or tariff provisions.

(2) Determination of Multiplier - 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 indicated unit-volume on the chart.

(3) Determination of Static and Differential Pressure - In computing the volume of gas at 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 and, where pressure variations are extreme during the hour, such average shall be determined for fifteen (15) minute intervals.

(4) Mechanical or electronic devices may be substituted for the above-stated manual method of computing orifice meter charts.

Ala. Admin. Code r. 770-X-6-.04

Effective January 1968. Amended October 1988. Filed with LRS February 5, 2013. Filed for Codification in the Alabama Administrative Code by the Alabama Public Service Commission on February 5, 2013, pursuant to Code of Ala. 1975, § 41-22-7.

Author: Alabama Public Service Commission

Statutory Authority:Code of Ala. 1975, §§ 37-1-32, 37-1-38, 37-1-52, 37-1-53.