AGA B109.1

Abstract

This standard applies to diaphragm-type gas displacement meters, designed for revenue measurement of fuel gas, having a flow rating of less than 500 cubic feet per hour (14.16m&#179;/h) capacity at 0.5 inch water column (125 Pa) differential pressure at standard conditions. <br>Part I comprises a list of definitions and terms used throughout the standard. <br>Part II covers the construction requirements for qualifying new-type meters in the designated flow-rate ranges. <br>Part III covers the performance requirements for qualifying new-type meters in the designated flow-rate ranges. <br>Part IV covers the "in-service" performance requirements for diaphragm-type meters in the designated flow-rate ranges. <br>Part V addresses installation requirements for these meters. <br>Part VI pertains to auxiliary devices used with gas meters covered by this standard. <br>Part VII covers test methods and equipment.