Gas Quantity Determination. Gas quantities shall be calculated by Gatherer using EFM for Gas that is designed, installed and operated as described in American Petroleum Institute Report Number 21, Part 1, Flow Measurement using Electronic Metering Systems, most recent edition (herein referred to as API 21.1). As new editions of API 21.1 are released, pre-existing EFM equipment shall be grandfathered unless updates and enhancements are mutually agreed to by the Parties. Any existing Circular Chart Recorders used as secondary measurement devices are grandfathered and industry best practices and standards for the integration and processing of volume, pressure and temperature shall apply. All fundamental constants, observations, records, calculations, and procedures involved in the determination and/or verification of the quantity and other characteristics of Gas measured hereunder, shall be in accordance with the applicable provisions in as outlined in the “Gas Measurement and Installation Requirements” section in this document, or by any other method commonly used in the industry and mutually acceptable to the Parties. Factors required in the computations shall be determined in the following manner:
Gas Quantity Determination. Gas quantities at the Receipt Points will be calculated by Gatherer using electronic flow measurement equipment (“EFM”) for Gas that is designed, installed, and operated as described in American Petroleum Institute Report Number 21, Part 1, Flow Measurement using Electronic Metering Systems, most recent edition (“API 21.1”). As new editions of API 21.1 are released, pre-existing EFM equipment will be grandfathered unless updates and enhancements are mutually agreed to by the Parties. Any existing Circular Chart Recorders used as secondary measurement devices are grandfathered, and Gatherer will use industry practices and standards for the integration and processing of volume, pressure and temperature. All fundamental constants, observations, records, calculations, and procedures involved in the determination and/or verification of the quantity and other characteristics of Gas measured hereunder at the Receipt Points will be in accordance with the applicable provisions as outlined in the “Gas Measurement and Installation Requirements” section in these General Terms, or by any other method commonly used in the industry and mutually acceptable to the Parties. Factors required in the computations of Gas delivered hereunder at the Receipt Points will be determined in the following manner:
