1、Date of Issue: July 2009 Affected Publications: API Manual of Petroleum Measurement Standards Chapter 12.2, Calculation of Petroleum Quantities Using Dynamic Measurement Methods and Volumetric Correction Factors Part 1, Introduction, Second Edition, May 1995 Part 4, Calculation of Base Prover Volume
2、s by Waterdraw Method, First Edition, December 1997 Part 5, Base Prover Volume Using Master Meter Method, Second Edition, September 2001 ERRATA Chapter 12.2.1Introduction Appendix B, paragraph C8, references API MPMS Chapters 11.2.3 and 11.2.3M to determine CTDW values utilized in water calibration
3、of volumetric provers. API MPMS Chapter 11.4.1-2003 Properties of Reference Materials Part 1Density of Water and Water Volumetric Correction Factors for Water Calibration of Volumetric Provers, has replaced these chapters. Chapter 12.2.4Calculation of Base Prover Volumes by Waterdraw Method Section
4、10.1.1 references API MPMS Chapters 11.2.3 and 11.2.3M to determine CTDW values utilized in water calibration of volumetric provers. API MPMS Chapter 11.4.1-2003 Properties of Reference Materials Part 1Density of Water and Water Volumetric Correction Factors for Water Calibration of Volumetric Prove
5、rs, has replaced these chapters. Section 10.1.2 provides an equation for the calculation of a correction for compressibility of water (CPL). Chapter 11.4.1-2003 provides a different equation in Appendix E. Some users are uncertain as to which to use. As stated in Addendum 1 to Chapter 12 issued in A
6、ugust 2007, Chapter 12 is the primary standard for calculation of volume quantities. As such, the CPL equation in Chapter 11.4.1-2003, Appendix E, should not be used unless specifically required by Chapter 12. Section 13.1, example 1 (page 32): “Liters = 1000 cubic meters” should be changed to “Lite
7、rs = 1000 cubic centimeters” Section 13.2, example 2 (page 42): “Liters = 1000 cubic meters” should be changed to “Liters = 1000 cubic centimeters” Chapter 12.2.4Calculation of Base Prover Volumes by Waterdraw Method Section 13.3, example 3 (page 49): “Liters = 1000 cubic meters” should be changed t
8、o “Liters = 1000 cubic centimeters” Chapter 12.2.5Base Prover Volume Using Master Meter Method Appendix A, paragraph A.3.8, references API MPMS Chapter 11.2.3 and 11.2.3M to determine CTDW values utilized in water calibration of volumetric provers. API MPMS Chapter 11.4.1-2003 Properties of Reference Materials Part 1Density of Water and Water Volumetric Correction Factors for Water Calibration of Volumetric Provers, has replaced these chapters.
