AGA XQ0002 : 0

2.1 CONSTRUCTION AND INSTALLATION REQUIREMENTS
2.2 SYMBOLS/NOMENCLATURE
2.3 DEFINITIONS
     2.3.1 Primary Element
     2.3.2 Pressure Measurement
     2.3.3 Temperature Measurement (T[f], T[m], T[r])
     2.3.4 Roughness Average (R[a])
2.4 ORIFICE PLATES SPECIFICATIONS
     2.4.1 Orifice Plate Faces
     2.4.2 Orifice Plate Bore Edge
     2.4.3 Orifice Plate Bore Diameter (d[m], d[r])
           and Roundness
     2.4.4 Orifice Plate Bore Thickness (e)
     2.4.5 Orifice Plate Thickness (E)
     2.4.6 Orifice Plate Bevel (q)
2.5 METER TUBE SPECIFICATIONS
     2.5.1 Definitions
     2.5.2 Orifice Flanges
     2.5.3 Orifice Fittings
     2.5.4 Pressure Taps
     2.5.5 Flow Conditioners
2.6 INSTALLATION REQUIREMENTS
     2.6.1 General
     2.6.2 Orifice Plate
     2.6.3 Meter Tube
     2.6.4 Acceptable Pulsation Environment
     2.6.5 Thermometer Wells
     2.6.6 Insulation
APPENDIX 2-A RESEARCH PROJECTS AND TESTS CONDUCTED
             BETWEEN 1922 AND 1999
APPENDIX 2-B ORIFICE METER INSPECTION GUIDELINES
APPENDIX 2-C SPECIFIC INSTALLATION CALIBRATION TEST
APPENDIX 2-D FLOW CONDITIONER PERFORMANCE TEST
APPENDIX 2-E MAXIMUM ALLOWABLE ORIFICE PLATE
             DIFFERENTIAL PRESSURE
APPENDIX 2-F GUIDELINES FOR USING HIGH DIFFERENTIAL
             PRESSURES FOR MEASURING NATURAL GAS WITH
             ORIFICE METERS
ADDENDUM 1 ERROR ANALYSIS EXAMPLE
ADDENDUM 2 EXPANDED DATA FOR 316 STAINLESS STEEL
             SIMPLY-SUPPORTED ORIFICE PLATES

Provides the specifications for construction and installation of orifice plates, meter tubes and associated fittings.