ANSI B109.2 January 1, 2000
Diaphragm Type Gas Displacement Meters (500 Cubic Feet per Hour Capacity and over)
Includes all amendments and changes through Reaffirmation Notice , 2008
Additional Comments: XQ0009
Published By:American Gas Association (AGA)
This standard applies to diaphragm-type gas displacement meters, designed for revenue measurement of fuel gas, having a flow rating of 500 cubic feet per hour (14.16m(3)/h) capacity and over at 0.5 inch water column (125 Pa) differential pressure at standard conditions.
Part I comprises a list of definitions and terms used throughout the standard.
Part II covers the construction requirements for qualifying new-type meters in the designated flow-rate ranges.
Part III covers the performance requirements for qualifying new-type meters in the designated flow-rate ranges.
Part IV covers the "in-service" performance requirements for diaphragm-type meters in the designated flow-rate ranges.
Part V addresses installation requirements for these meters.
Part VI pertains to auxiliary devices used with meters covered by this standard.