API MPM CH4.3 : 1988

4.3.1 Introduction
4.3.1.1 Scope
4.3.1.2 Definition of terms
4.3.1.3 Referenced publications
4.3.2 Small volume prover systems
4.3.3 Equipment
4.3.3.1 Materials and fabrication
4.3.3.2 Temperature stability
4.3.3.3 Temperature measurement
4.3.3.4 Pressure measurement
4.3.3.5 Displacing devices
4.3.3.6 Valves
4.3.3.7 Connections
4.3.3.8 Detectors
4.3.3.9 Meter pulse generator
4.3.3.10 Pulse-interpolation system
4.3.3.11 Controller
4.3.4 Design of small volume provers
4.3.4.1 Initial considerations
4.3.4.2 Pressure drop across the prover
4.3.4.3 Displacer velocity
4.3.4.4 Volume
4.3.4.5 Critical parts
4.3.4.6 Counters
4.3.4.7 Meter proving guidelines
4.3.5 Sample calculations for the design of small
          volume provers
4.3.5.1 Problem
4.3.5.2 Solution
4.3.5.3 Summary of prover design calculations
4.3.5.4 Other considerations
4.3.6 Installation
4.3.7 Calibration
4.3.7.1 General considerations
4.3.7.2 Waterdraw method
4.3.7.3 Calibrating bidirectional provers
4.3.7.4 Calibrating unidirectional provers
4.3.7.5 Repeatability
4.3.7.6 Certificate of calibration
4.3.8 Operation
4.3.9 Nonuniform pulses
Appendix A - Evaluation of displacement meter pulse
             variations
Appendix B - Meter factor determination with small
             volume provers
Figures
1 Generalized system overview
2 System overview, internal valve
3 System overview, internal bypass porting with
     external valve
4 System overview, pass-through displacer with
     external valve
5 System overview for waterdraw calibration
A-1 Pulse variation graph/direct
A-2 Pulse variation graph/geared
A-3 Pulse variation graph/4-percent adjustment

Covers essential requirements and operation of small volume provers.