ORIFICE METERING OF NATURAL GAS AND OTHER RELATED HYDROCARBON FLUIDS - CONCENTRIC, SQUARE-EDGED ORIFICE METERS - PART 1: GENERAL EQUATIONS AND UNCERTAINTY GUIDELINES
American Petroleum Institute
1 Introduction
2 Normative References
3 Terms, Definitions, and Symbols
4 Field of Application
5 Method of Calculation
6 Orifice Flow Equation
7 Empirical Coefficient of Discharge
8 Empirical Expansion Factor (Y) for
Flange-tapped Orifice Meters
9 In-situ Calibration
10 Fluid Physical Properties
11 Unit Conversion Factors
12 Practical Uncertainty Guidelines
Annex A (informative) - Discharge Coefficients for
Flange-tapped Orifice Meters
Annex B (informative) - Adjustments for Instrument
Calibration and Use
Annex C (informative) - Buckingham and Bean
Empirical Expansion Factor (Y) for
Flange-tapped Orifice Meters
Bibliography
Gives a single reference for engineering equations, uncertainty estimations, construction and installation requirements, and standardized implementation recommendations for the calculation of flow rate through concentric, square-edged, flange-tapped orifice meters.
| Document Type | Standard |
| Status | Current |
| Publisher | American Petroleum Institute |
| ProductNote | Reconfirmed 2012 |
| Supersedes |
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