The following Manual of Petroleum Measurement Standards are currently being worked on within the API Committee on Petroleum Measurement.
Documents marked with an astrisk (*) are expected to be published in 2013.
Chapter 2.2D, Calibration of Upright Cylindrical Tanks Using the Internal Electro-optical Distance Ranging (EODR) Method (ANSI/API MPMS 2.2D), 2nd Edition
* Chapter 2.2G, Calibration of Upright Cylindrical Tanks Using the Optical Reference Line Method Using Electro-optical Distance Ranging Equipment, 1st Edition
* Chapter 3.1A, Standard Practice for the Manual Gauging of Petroleum and Petroleum Products, 3rd Edition
Chapter 3.5.1, Standard Practice for Level Measurement of Light Hydrocarbon Liquids Onboard Marine Carriers and Floating Storage by Automatic Tank Gauging, Part 1—Liquefied Natural Gas, 1st Edition
Chapter 3.5.2, Standard Practice for Level Measurement of Light Hydrocarbon Liquids Onboard Marine Carriers and Floating Storage by Automatic Tank Gauging, Part 2—Liquefied Petroleum and Chemical Gases, 1st Edition
* Chapter 4.2, Displacement Provers, 4th Edition
* Chapter 4.8, Operation of Proving Systems, 2nd Edition
Chapter 5.9, Measurement of Liquid Hydrocarbons by Vortex Meters, 1st Edition
Chapter 6.1A, Liquid Flow Measurement Systems for Single Phase Liquids – General Considerations, 1st Edition
Chapter 6.2A, Truck and Rail Loading/Unloading Measurement Systems, 1st Edition
Chapter 6.3A, Pipeline and Marine Loading and Unloading Measurement Systems, 1st Edition
Chapter 6.4A, Aviation Refueling Measurement Systems, 1st Edition
Chapter 7.1, Temperature Determination, Part 1—Liquid in Glass Thermometers, 2nd Edition
Chapter 7.2, Temperature Determination, Part 2—Portable Electronic Thermometers, 3rd Edition
Chapter 7.4, Temperature Determination, Part 4—Dynamic Temperature Measurement, 2nd Edition
Chapter 7.5, Refrigerated Hydrocarbon and Non-petroleum based Liquefied Gaseous Fuels - General Requirements for Automatic Tank Thermometers Onboard Marine Carriers and Floating Storage, 1st Edition
* Chapter 8.1/ASTM D 4057, Manual Sampling of Petroleum and Petroleum Products, 4th Edition
Chapter 8.2/ASTM D 4177, Automatic Sampling of Petroleum and Petroleum Products, 3rd Edition
Chapter 8.4, Standard Practice for Sampling and Handling of Fuels for Volatility Measurement, 3rd Edition
* Chapter 9.1, Standard Test Method for Density, Relative Density (Specific Gravity), or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method (ASTM D1298), 3rd Edition
* Chapter 9.2, Standard Test Method for Density or Relative Density of Light Hydrocarbons by Pressure Hydrometer (ASTM D1657), 3rd Edition
* Chapter 9.3, Standard Test Method for Density, Relative Density, and API Gravity of Crude Petroleum and Liquid Petroleum Products by Thermohydrometer Method (ASTM D6822), 3rd Edition
Chapter 9.4, Continuous/On-line Density Measurement and Applications, 1st Edition
* Chapter 10.4, Determination of Sediment and Water in Crude Oil by the Centrifuge Method (Field Procedure), 4th Edition
* Chapter 10.9, Standard Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration (ANSI/ASTM D4928), 3rd Edition
Chapter 11.1-A2, Addendum 2 to Volume Correction Factors
Chapter 11.3.2.1, Ethylene Density, 2nd Edition
Chapter 11.3.4, Gasoline/Ethanol Volume Correction Factors, 1st Edition
Chapter 12.1.2, Calculation of Static Petroleum Quantities, Part 2—Calculation Procedures for Tank Cars, 2nd Edition
Chapter 12.2, Calculation of Petroleum Quantities Using Dynamic Measurement Methods, 2nd Edition
Chapter 13.3, Measurement Uncertainty, 1st Edition
Chapter 14.1, Collecting and Handling of Natural Gas Samples for Custody Transfer, 7th Edition
* Chapter 14.3.2, Concentric, Square-Edged Orifice Meters, Part 2—Specification and Installation Requirements (ANSI/API MPMS 14.3.2-20XX) (AGA Report No. 3, Part 2), 5th Edition
* Chapter 14.3.3, Concentric, Square-Edged Orifice Meters, Part 3—Natural Gas Applications (ANSI/API MPMS 14.3.3) (AGA Report No. 3, Part 3), 4th Edition
Chapter 14.3.4, Concentric, Square-Edged Orifice Meters, Part 4—Background, Development, Implementation Procedures and Subroutine Documentation (AGA Report No. 3, Part 4), 4th Edition
* Chapter 14.4, Converting Mass of Natural Gas Liquids and Vapors to Equivalent Liquid Volumes (GPA 8173-XX), 2nd Edition
* Chapter 14.9, Measurement of Natural Gas by Coriolis Meter (AGA Report No. 11), 2nd Edition
Chapter 14.10, Measurement of Flow to Flares, 2nd Edition
Chapter 14.12, Vortex Meters For Gas Flow Measurement, 1st Edition
Chapter 17.1, Guidelines for Marine Cargo Inspection, 6th Edition
* Chapter 17.6, Guidelines for Determining Fullness of Pipelines Between Vessels and Shore Tanks, 2nd Edition
* Chapter 17.10.1, Refrigerated Light Hydrocarbon Fluids—Measurement of Cargoes on Board LNG Carriers, 1st Edition
Chapter 17.10.2, Measurement of Refrigerated and/or Pressurized Cargoes on Board Marine Gas Carriers - Part 2 - Liquefied Petroleum and Chemical Gases, 2nd Edition
Chapter 17.12, Procedure for Bulk Liquid Chemical Cargo Inspection by Cargo Inspectors, 2nd Edition
Chapter 18.1, Measurement Procedures for Crude Oil Gathered from Small Tanks by Truck, 3rd Edition
Chapter 19.3, Part H, Tank Seals and Fittings Certification—Administration (also supersedes and incorporates the relevant sections of API MPMS Chapter 19.3 Parts F and G), 2nd Edition
Chapter 20.1, Production Allocation Measurement, 2nd Edition
* Chapter 20.2, Production Allocation Measurement Using Single Phase Devices, 1st Edition
* Chapter 20.3, Multiphase Flow Measurement, 1st Edition
Chapter 20.4, Draft Standard for Phase Behavior Application in Upstream Measurement and Allocation, 1st Edition
Chapter 20.5, Recommended Practice for Well Rate Determination, 1st Edition
* Chapter 21.1, Electronic Gas Measurement, 2nd Edition
Chapter 22.1, Testing Protocols—General Guidelines for Developing Testing Protocols for Devices Used in the Measurement of Hydrocarbon Fluids, 2nd Edition
* Chapter 22.2, Testing Protocols—Differential Pressure Flow Measurement Devices, 2nd Edition
Chapter 22.3, Testing Protocols—Flare Gas Meters, 1st Edition
Chapter 22.4, Testing Protocols—Pressure, Differential Pressure, and Temperature Measuring Devices, 1st Edition
Chapter 22.5, Testing Protocols—Electronic Flow Computer Calculations, 1st Edition
* Chapter 22.6, Testing Protocols—Gas Chromatographs, 1st Edition
Technical Report 2568, Evaporative Loss from the Cleaning of Storage Tanks, 2nd Edition
* Technical Report 2572, Carbon Content, Sampling and Calculation, 1st Edition
* Technical Report 2573, API MPMS Chapter 10, Sediment and Water Methodology Information Guide, 1st Edition
Technical Report 257X, Short Term Evaporative Loss Estimation from Atmospheric Storage Tanks, 1st Edition
* Technical Report 25XX, Thermal Cracked Gas, 1st Edition
For Further Information Contact: Paula Watkins, Standards Department, email: (
watkinsp@api.org)