API MPMS CH4.2 : 2003 : R2011

1 INTRODUCTION
  1.1 Scope
  1.2 Displacement Prover Systems
  1.3 Definition of Terms
  1.4 Referenced Publications
2 GENERAL PERFORMANCE CONSIDERATIONS
  2.1 Repeatability and Accuracy
  2.2 Base Prover Volume
  2.3 Valve Seating
  2.4 Flow Stability
  2.5 Freedom from Hydraulic Shock
  2.6 Temperature Stability
  2.7 Pressure Drop Across the Prover
  2.8 Meter Pulse Train
  2.9 Detectors
3 GENERAL EQUIPMENT CONSIDERATIONS
  3.1 Materials and Fabrication
  3.2 Internal and External Coatings
  3.3 Temperature Measurement
  3.4 Pressure Measurement
  3.5 Displacing Devices
  3.6 Valves
  3.7 Connections
  3.8 Detectors
  3.9 Peripheral Equipment
  3.10 Unidirectional Sphere Provers
  3.11 Unidirectional Piston Provers
  3.12 Bidirectional Sphere Provers
  3.13 Bidirectional Piston Provers
4 DESIGN OF DISPLACEMENT PROVERS
  4.1 Initial Considerations
  4.2 Design Accuracy Requirements
  4.3 Dimensions of a Displacement Prover
5 INSTALLATION
  5.1 General Considerations
  5.2 Prover Location
APPENDIX A ANALYSIS OF SPHERE POSITION REPEATABILITY
APPENDIX B EXAMPLES OF PROVER SIZING
APPENDIX C A PROCEDURE FOR CALCULATING MEASUREMENT SYSTEM
           UNCERTAINTY
APPENDIX D TYPICAL DISPLACEMENT PROVER DESIGN CHECK LIST
APPENDIX E EVALUATION OF METER PULSE VARIATIONS
APPENDIX F PROVER SPHERE SIZING

Describes the essential elements of provers that do, and also do not, accumulate a minimum of 10,000 whole meter pulses between detector switches, and provides design and installation details for the types of displacement provers that are currently in use.