API 5L: Specification for Line Pipe
API 500: Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and
API 510: Pressure Vessel Inspection Code: Maintenance Inspection, Rating, Repair, and Alteration
API 520 Part 2: Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries
API 526: Flanged Steel Pressure Relief Valves
API 527: Seat Tightness of Pressure Relief Valves
API 534: Heat Recovery Steam Generators
API 535: Burners for Fired Heaters in General Refinery Services
API 537: Flare Details for General Refinery and Petrochemical Service
API 541: Form-Wound Squirrel Cage Induction Motors – 250 Horsepower and Larger
API 541: Form-Wound Squirrel-Cage Induction Motors – 500 Horsepower and Larger
API 560: Fired Heaters for General Refinery Service
API 570: Piping Inspection Code – Inspection, Repair, Alteration, and Rerating of In-Service Piping Systems
API 571: Damage Mechanisms Affecting Fixed Equipment in the Refining Industry
API 572: Inspection of Pressure Vessels (Towers, Drums, Reactors, Heat Exchangers, and Condensers)
API 573: Inspection of Fired Boilers and Heaters
API 579: Recommended Practice for Fitness-For-Service
API 581: Risk-Based Inspection Base Resource Document
API 590: Steel Line Blanks
API 591: Process Valve Qualification Procedure
API 594: Check Valves: Flanged, Lug, Wafer and Butt-welding
API 598: Valve Inspection and Testing
API 599: Metal Plug Valves – Flanged, Threaded and Welding Ends
API 600: Bolted Bonnet Steel Gate Valves for Petroleum and Natural Gas Industries
API 602: Compact Steel Gate Valves – Flanged, Threaded, Welding, and Extended-Body Ends
API 603: Corrosion-Resistant, Bolted Bonnet Gate Valves – Flanged and Butt-Welding Ends
API 607: Fire Test for Soft-Seated Quarter-Turn Valves
API 608: Metal Ball Valves – Flanged, Threaded, and Welding Ends
API 609: Butterfly Valves: Double Flanged, Lug- and Wafer-Type
API 610: Centrifugal Pumps for Petroleum, Heavy Duty Chemical, and Gas Industry Services
API 611: General-Purpose Steam Turbines for Petroleum, Chemical, and Gas Industry Service
API 612: Petroleum, Petrochemical and Natural Gas Industries – Steam Turbines – Special-Purpose Applications
API 613: Special Purpose Gear Units for Petroleum, Chemical and Gas Industry Services
API 614: Lubrication, Shaft-Sealing, and Control-Oil Systems and Auxiliaries for Petroleum, Chemical and Gas Industry Services
API 616: Gas Turbines for the Petroleum, Chemical, and Gas Industry Services
API 617: Axial and Centrifugal Compressors and Expander-compressors for Petroleum, Chemical and Gas Industry Services
API 618: Reciprocating Compressors for Petroleum, Chemical, and Gas Industry Services
API 619: Rotary Type Positive Displacement Compressors for Petroleum, Chemical, and Gas Industry Services
API 620: Design and Construction of Large, Welded, Low-Pressure Storage Tanks
API 650: Welded Steel Tanks for Oil Storage
API 651: Cathodic Protection of Aboveground Petroleum Storage Tanks
API 652: Lining of Aboveground Petroleum Storage Tank Bottoms
API 653: Tank Inspection, Repair, Alteration, and Reconstruction
API 660: Shell-and-tube Heat Exchangers for General Refinery Services
API 661: Air-Cooled Heat Exchangers for General Refinery Service
API 662: Plate Heat Exchangers for General Refinery Services
API 670: Machinery Protection Systems
API 671: Special-Purpose Couplings for Petroleum, Chemical, and Gas Industry Services
API 672: Packaged, Integrally Geared Centrifugal Air Compressors for Petroleum, Chemical, and Gas Industry Services
API 673: Centrifugal Fans for Petroleum, Chemical and Gas Industry Services
API 674: Positive Displacement Pumps – Reciprocating
API 675: Positive Displacement Pumps – Controlled Volume
API 676: Positive Displacement Pumps – Rotary
API 677: General Purpose Gear Units for Petroleum, Chemical, and Gas Industry Services
API 681: Liquid Ring Vacuum Pumps and Compressors for Petroleum, Chemical, and Gas Industry services
API 682: Pumps – Shaft Sealing Systems for Centrifugal and Rotary Pumps
API 683: Quality Improvement Manual for Mechanical Equipment in Petroleum, Chemical, and Gas Industries
API 684: Tutorial on the API Standard Paragraphs Covering Rotor Dynamics and Balancing: An Introduction to Lateral Critical and Train Torsional Analysis and
API 685: Seal-less Centrifugal Pumps for Petroleum, Heavy Duty Chemical, and Gas Industry Services
API 1104: Welding of Pipelines and Related Facilities
API 1110: Pressure Testing of Liquid Petroleum Pipelines
API 2000: Venting Atmospheric and Low-Pressure Storage Tanks – Non Refrigerated and Refrigerated
API 2510: Design and Construction of LPG Installations

API RP 1160, Managing System Integrity for Hazardous Liquid Pipelines
API 570, Piping Inspection Code
API RP 579, Fitness-For-Service
API RP 2200, Repairing Hazardous Liquid Pipelines
API SPEC 6A, Wellhead and Christmas Tree Equipment
API SPEC 6D, Pipeline and Piping Valves
API 594, Check Valves: Flanged, Lug, Wafer, and Butt-welding
API 598, Valve Inspection and Testing
API 599, Metal Plug Valves—Flanged, Threaded, and Welding Ends
API 600, Steel Gate Valves – Flanged and Butt-welding Ends, Bolted Bonnets
API 602, Gate, Globe, and Check Valves for Sizes DN 100 (NPS 4) and Smaller for the Petroleum and Natural Gas Industries
API 623, Steel Globe Valves—Flanged and Butt-welding Ends, Bolted Bonnets
API SPEC 20A, Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in the Petroleum and Natural Gas Industry
API SPEC 20B, Open Die Shaped Forgings for Use in the Petroleum and Natural Gas Industry
API SPEC 20C, Closed Die Forgings for Use in the Petroleum and Natural Gas Industry
API 15 LR Specification for Low Pressure Fiberglass Line Pipe API 15 HR Specification For High Pressure Fiberglass Line Pipe
API 15TL4, Recommended Practice for Care and Use of Fiberglass Tubulars
API 560, Fired Heaters for General Refinery Service
API 530, Calculation of Heater-tube Thickness in Petroleum
API RP 535, Burners for Fired Heaters in General Refinery Services API RP 573, Inspection of Fired Boilers and Heaters
API RP 556, Instrumentation, Control, and Protective Systems for Gas Fired Heaters
API SPEC 11E, Specifications for Pumping Units API SPEC 11ER, Guarding of Pumping Units
API RP 11G, Recommended Practice for Installation, Maintenance, and Lubrication of Pumping Units
API SPEC 6A, Wellhead and Tree Equipment
API 53, Well Control Equipment Systems for Drilling Wells
API RP 54, Occupational Safety and Health for Oil and Gas Well Drilling and Servicing Operations.
API RP 59, Recommended Practice for Well Control Operations API SPEC 16A, Drill-Through Equipment
API 16AR, Repair and Remanufacture of Drill-through Equipment API SPEC 16C, Choke and Kill Equipment
API SPEC 6D, Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment
API SPEC 4F, Drilling and Well Servicing Structures
API RP 4G, Operation, Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures
API RP 54, Occupational Safety and Health for Oil and Gas Well Drilling and Servicing
API SPEC Q2, Quality Management for Service Supply Organizations for the Petroleum and Natural Gas Industry
API SPEC 4F, Drilling and Well Servicing Structures
API RP 4G, Operation, Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures
API SPEC Q2, Quality Management for Service Supply Organizations for the Petroleum and Natural Gas Industry
API RP 1102, Steel Pipelines Crossing Railroads and Highways API SPEC 5L, Seamless Line Pipe
API SPEC 6D, Specification for Pipeline Valves
API 594, Check Valves: Flanged, Lug, Wafer, and Butt-welding API 599, Metal Plug Valves-Flanged, Threaded and Welding Ends
API 609, Butterfly Valves: Double Flanged, Lug- and Wafer-Type
API SPEC 6D, Pipeline Valves
API RP 5C6, Pipe with Welded Connectors
API SPEC 8C, Drilling and Production Hoisting Equipment
API 2016, Guidelines and Procedures for Entering and Cleaning Petroleum Storage Tanks
API RP 2003, Protection Against Ignitions Arising Out of Static, Lightning, and Stray Currents
API 2015, Requirements for Safe Entry and Cleaning of Petroleum Storage Tanks
API 2000, Venting Atmospheric and Low-Pressure Storage Tanks
API 620, Design and Construction of Large, Welded, Low-Pressure Storage Tanks
API SPEC 12B, Specification for Bolted Tanks for Storage of Production Liquids
API SPEC 12F, Specification for Shop Welded Tanks for Storage of Production Liquids
API 2350, Overfill Protection for Storage Tanks in Petroleum Facilities API 653, Tank Inspection, Repair, Alteration, and Reconstruction

API/IP SPEC 1581, Specifications and Qualification Procedures for Aviation Jet Fuel Filter Separators
API/IP STD 1542, Identification Markings for Dedicated Aviation Fuel Manufacturing and Distribution Facilities
API 1529, Aviation Fueling Hose
API SPEC 5B, Threading, Gauging, and Inspection of Casing, Tubing, and Line Pipe Threads
API 618, Reciprocating Compressors for Petroleum, Chemical, and Gas Industry Services
API RP 520, Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries
API RP 550, Manual on Installation of Refinery Instruments and Control Systems
API SPEC 11P, Specification for packaged Reciprocating Compressors for Oil and Gas Production Services
API 601, Metallic Gaskets For Raised-face Pipe Flanges And Flanged Connections
API 605, Large-Diameter Carbon Steel Flanges

API RP 64: Recommended Practices for Diverter Systems Equipment and Operations
API RP 5C1: Recommended Practice for Care and Use of Casing and Tubing
API SPEC 5CT: Specification for Casing and Tubing

API 2610: Design, Construction, Operation, Maintenance, and Inspection of Terminal and Tank Facilities
API 653: Tank Inspection, Repair, Alteration, and Reconstruction
API Standard 2350: Overfill Protection for Storage Tanks in Petroleum Facilities, Fourth Edition
API RP 1604: Closure of Underground Petroleum Storage Tanks
API RP 575: Inspection Practices for Atmospheric and Low-Pressure Storage Tanks
API RP 652: Linings of Aboveground Petroleum Storage Tank Bottoms
API 53, Well Control Equipment Systems for Drilling Wells
API 650: Welded Steel Tanks for Oil Storage
API 651: Cathodic Protection for Above-Ground Petroleum Storage Tanks
API 652: Lining of Above-Ground Petroleum Storage Tanks

API RP 1604, Closure of Underground Petroleum Storage Tanks
API 2000: Venting Atmospheric and Low-Pressure Storage Tanks
API 2015: Cleaning Petroleum Storage Tanks
API 2350: Overfill Protection for Petroleum Storage Tanks
API 2550: Measurements and Calibration of Petroleum Storage Tanks
API RP 14B: Design, Installation, Repair and Operation of Subsurface Safety Valve Systems
API SPEC 12D: Field-welded Tanks for Storage of Production Liquids
API SPEC 12F: Shop-welded Tanks for Storage of Production Liquids
API SPEC 12P: Fiberglass Reinforced Plastic Tanks
API RP 573, Inspection of Fired Boilers and Heaters
API RP 13-B-1: Recommended Practice for Field Testing Water-Based Drilling Fluid
API RP 13B-2: Recommended Practice for Field Testing Oil-Based Drilling Fluid
API RP 31A: Standard Form for Hardcopy Presentation of Downhole Well Log Data
API RP 40: Recommended Practice for Core Analysis
API RP 44: Recommended Practice for Sampling Petroleum Reservoir Fluids
API RP 45: Recommended Practice for Analysis of Oilfield Waters
API RP 66: Recommended Digital Log Interchange Standard (DLIS)
API Standard 53: BOP Equipment Systems for Drilling API Standard 65: Isolating Potential Flow Zones
API SPEC 4F: Drilling and Well Servicing Structures API SPEC 6A: Wellhead and Christmas Tree Equipment API SPEC 6FA: Fire Test for Valves
API SPEC 7-1: Rotary Drilling Stem Elements
API SPEC 8A, 8C: Drilling and Production Hoisting Equipment
API SPEC 9A: Wire Rope
API SPEC 10A: Cements and Materials for Well Cementing API SPEC 13A: Drilling Fluid Materials
API SPEC 14A: Subsurface Safety Valve Equipment API SPEC 16A: Drill-through Equipment
API SPEC 16C: Choke and Kill Equipment
API SPEC 16D: Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment
API SPEC 16F: Marine Drilling Riser Equipment
API SPEC 16R: Design, Rating and Testing of Marine Drilling Riser Couplings
API SPEC 17D: Design and Operation of Subsea Production systems – Subsea Wellhead and Tree Equipment
API RP 5C7: Recommended Practice for Coiled Tubing Operations in Oil and Gas Well Services
API RP 8B: Inspection, Maintenance, Repair, and Remanufacture of Hoisting Equipment
API RP 9B: Application, Care and Use of Wire Rope for Oilfield Service
API RP 10B: Testing Well Cements
API RP 13-B-1: Field Testing Water-Based Drilling Fluid API RP 13B-2: Field Testing Oil-Based Drilling Fluid
API RP 14B: Design, Installation, Operation, Test, and Redress of Subsurface Safety Valve Systems

API RP 16Q: Design, Selection, Operation and Maintenance of Marine Drilling Riser Systems
API RP 17A: Design and Operation of Subsea Production Systems
API RP 17G: Design and Operation of Completion/ Workover Riser Systems
API RP 64: Diverter Systems Equipment and Operations
API RP 90: Annular Casing Pressure Management for Offshore Wells
API RP 131: Laboratory Testing Drilling Fluids
API RP 13B-2: Procedure for Field Testing Oil Based Drilling Muds

API 70: Security for Worldwide Offshore Oil and Natural Gas Operations
API SPEC 8A, 8C: Drilling and Production Hoisting Equipment API SPEC 2C, 2D: Offshore Pedestal-mounted Cranes

API SPEC 8C: Specification for Drilling and Production Hoisting Equipment (PSL 1 and PSL 2)
API SPEC 2C: Off-shore Pedestal-mounted cranes
API RP 2D: Operation and Maintenance of Off-shore Cranes

API RP 5A5: Field Inspection of New Casing, Tubing, and Plain End Line Pipe
API RP 5C1: Care and Use of Casing and Tubing

API 2510, Design and Construction of Liquefied Petroleum Gas (LPG) Installations
API 2510A, Fire-Protection Considerations for the Design and Operation of Liquefied Petroleum Gas (LPG) Storage Facilities
API RP 580, Risk-Based Inspection

API RP 581, Risk-Based Inspection Methodology API RP 579-1, Fitness for Service

API RP 750, Management of Process Hazards

API 1104, Welding of Pipelines and Related Facilities
API 1160, Managing System Integrity for Hazardous Liquid Pipelines
API 2000, Venting Atmospheric and Low-Pressure Storage Tanks
API RP 1004, Bottom Loading and Vapor Recovery for MC-306 & DOT-406 Tank Motor Vehicles
API RP 1615, Installation of Underground Petroleum Storage Systems
API RP 2001, Fire Protection in Refineries

API RP 5A3: Recommended Practice on Threat Compounds for Casing, Tubing and Line Pipe and Drill Stem Elements
API TR 5C3: Technical Report on Equations and Calculations for Casing, Tubing and Line Pipe Used as Casing or Tubing; and Performance Properties Tables for Casing and Tubing
API Spec 5B: Specification for Threading, Gauging and Thread Inspection of Casing, Tubing and Line pipe Threads
API 6D: Specification for Pipeline Valves, 2007

API 620: Design and Construction of Large, Welded, Low- Pressure Storage Tanks, 2008
API 625: Tank Systems for Refrigerated Liquefied Gas Storage, 2010
API 2510: Design and Construction of Liquefied Petroleum Gas (LPG) Installations, 2010

API RP 520: Sizing, Selection and Installation of Pressure- Relieving Devices in Refineries
API RP 521: Guide for Pressure-Relieving and Depressuring systems
API STD 526: Flanged Steel Pressure Relief Valves

API SPEC 12K: Specification for Indirect Type Oil-Field Heaters

API 1529: Aviation Fueling Hose

API / IP 1542: Airport Marking for Fuel Identification

API / IP 1581: Specification and Qualification Procedures for Aviation Jet Fuel Filter / Separators
API / IP 1583: Specification and Qualification Procedures for Aviation Fuel Filter Monitors with Absorbent Type Elements
API / IP 1590: Specification and Qualification Procedures for Aviation Fuel Microfilters
API / IP 1542: Airport Equipment Making for Fuel Identification
API IP 1581: Specifications and Qualification Procedures for Aviation Jet Fuel
API / IP 1583: Specifications and Qualification Procedures for Aviation Fuel Filter Monitors with Absorbent Type Elements
API / IP 1590: Specification and Qualification Procedures for Aviation Fuel Microfilters

API 1529: Aviation Fueling Hose

API / IP 1542: Airport Equipment Making for Fuel Identification
API IP 1581: Specifications and Qualification Procedures for Aviation Jet Fuel
API / IP 1583: Specifications and Qualification Procedures for Aviation Fuel Filter Monitors with Absorbent Type Elements
API / IP 1590: Specification and Qualification Procedures for Aviation Fuel Microfilters
API 1509: Engine Oil Licensing and Certification System
API 1529: Aviation Fueling Hose

API / IP 1542: Airport Equipment Marking for Fuel Identification
API IP 1581: Specifications and Qualification Procedures for Aviation Jet Fuel
API / IP 1583: Specifications and Qualification Procedures for Aviation Fuel Filter Monitors with Absorbent Type Elements
API / IP 1590: Specification and Qualification Procedures for Aviation Fuel Microfilters
API 1509: Engine Oil Licensing and Certification System, 2002
API 650: Welded Steel Tanks for Oil Storage
API 1632: Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems
API 2015: Requirements for Safe Entry and Cleaning of Petroleum Storage Tanks
API 2610: Design, Construction, Operation, Maintenance, and Inspection of Terminal & Tank Facilities
API 594: Dual Plate Check Valves
API 598: Valve Inspection and Testing
API 599: Metal Plug Valves-Flanged, Threaded, and Welding Ends
API 600: Cast Steel Valves

API 602: Gate, Globe, and Check Valves for Sizes DN 100 (NPS 4) and Smaller for the Petroleum and Natural Gas Industries
API 607/6FA: Fire Safe Ball Valve Manufacturer
API 609: Butterfly Valves: Double-flanged, Lug-and Wafer- type
API 620: Design and Construction of Large, Welded, Low- pressure Storage Tanks
API 623: Steel Globe Valves-Flanged and Butt-welding Ends, Bolted Bonnets
API 652: Linings of Aboveground Petroleum Storage Tank Bottoms
API 653: Tank inspection, repair and reconstruction
API 2000: Venting Atmospheric and Low-Pressure Storage Tanks
API RP 520: Sizing, Selection, and Installation of Pressure- Relieving Devices in Refineries
API RP 651: Cathodic Protection of Aboveground Petroleum Storage Tanks
API RP 1004: Bottom Loading and Vapor Recovery for MC- 306 Tank Motor Vehicles
API 2610: Design, Construction, Operation, Maintenance, and Inspection of Terminal & Tank Facilities
API 1163: In-Line Inspection Systems Qualification
API RP-1160: Managing System Integrity for Hazardous Liquid Pipelines
API 1173: Pipeline safety management systems

API 602: Gate, Globe, and Check Valves for Sizes DN 100 (NPS 4) and Smaller for the Petroleum and Natural Gas Industries
API 609: Butterfly Valves: Double-flanged, Lug-and Wafer- type
API 623: Steel Globe Valves-Flanged and Butt-welding Ends, Bolted Bonnets
API 650: Welded Steel Tanks for Oil Storage
API 653: Tank inspection, repair and reconstruction
API 1632: Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems

API 2000: Venting Atmospheric and Low-pressure Storage Tanks
API 2015: Requirements for Safe Entry and Cleaning of Petroleum Storage Tanks
API 2610: Design, Construction, Operation, Maintenance, and Inspection of Terminal & Tank Facilities

API 2510A: Fire Protection Considerations for the Design and Operation of Liquefied Petroleum Gas (LPG) Storage Facilities
API SPEC 6D: Pipeline Valves

API RP 14E: Design and Installation of Offshore Production Platform Piping Systems
API RP 14F: Design and Installation of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities
API RP 14G: Fire Prevention and Control on Open Type Offshore Production Platforms
API RP 14J: Design and Hazards Analysis for Offshore Production Facilities
API RP 500: Classification of Areas for Electrical Locations at Petroleum Facilities
API 510: Pressure Vessel Inspection Code
API 620: Design and Construction of Large, Welded, Low- Pressure Storage Tanks
API RP 1111: Design, Construction, Operation, and Maintenance of Offshore Hydrocarbon Pipelines

API MPMS 2.2A, Measurement and Calibration of Upright Cylindrical Tanks by the Manual Tank Strapping Method
API MPMS 2.2D, Measurement and Calibration of Upright Cylindrical Tanks using the Internal ElectroOptical Distance Ranging Method
API MPMS 2.7, Calibration of Gauge Tanks API MPMS 3.1B, Standard Practice for Level Measurement of Liquid Hydrocarbons in Stationary Tanks by Automatic Tank Gauging

API MPMS 3.3, Tank gauging: Standard Practice for Level Measurement of Liquid Hydrocarbons in Stationary Pressurized Storage Tanks by Automatic Gauging
API MPMS 3.6, Measurement of Liquid Hydrocarbons by Hybrid Tank Measurement Systems
API MPMS 7, Temperature Determination
API MPMS 12.1.1, Section 1: Calculation of Static Petroleum Quantities Part 1: Upright Cylindrical Tanks and Marine Vessels
API MPMS 14.4, Converting Mass of Natural Gas Liquids and Vapors to Equivalent Liquid Volumes
API MPMS 19.1, Evaporative Loss from Fixed-Roof Tanks
API MPMS 19.2, Evaporative Loss from Floating-Roof Tanks
API MPMS 19.4, Recommended Practice for the Specification of Evaporative Losses
API MPMS 5.1, General Considerations for Measurement by Meters
API MPMS 5.4, Accessory Equipment for Liquid Meters
API MPMS 5.5, Fidelity and Security of Flow Measurement Pulsed-Data Transmission Systems
API MPMS 5.2, Measurement of Liquid Hydrocarbons by Displacement Meters
API MPMS 5.3, Measurement of Liquid Hydrocarbons by Turbine Meters

API MPMS 5.6, Measurement of Liquid Hydrocarbons by Coriolis Meters
API MPMS 5.8, Measurement of Liquid Hydrocarbons by Ultrasonic Flowmeters Using Transit Time Technology
API MPMS 21.2, Electronic Liquid Volume Measurement Using Positive Displacement and Turbine Meters
API MPMS 21.2-A1, Addendum 1 to Flow Measurement Using Electronic Metering Systems, Inferred Mass
API MPMS 4.1, Introduction [proving systems] API MPMS 4.2, Displacement Provers
API MPMS 4.4, Tank Provers
API MPMS 4.5, Master-Meter Provers API MPMS 4.6, Pulse Interpolation
API MPMS 4.7, Field Standard Test Measures API MPMS 4.8, Operation of Proving Systems
API MPMS 4.9.1, Introduction to the Determination of the Volume of Displacement and Tank Provers
API MPMS 4.9.2, Determination of the Volume of Displacement and Tank Provers by the Waterdraw Method of Calibration
API MPMS 4.9.3, Determination of the Volume of Displacement Provers by the Master Meter Method of Calibration
API MPMS 4.9.4, Determination of the Volume of Displacement and Tank Provers by the Gravimetric Method of Calibration
API MPMS 13.2, Statistical Methods of Evaluating Meter Proving Data
API MPMS 11.4.1, Properties of Reference Materials Part 1—Density of Water and Water Volume Correction Factors for Calibration of Volumetric Provers

API MPMS 12.2.4, Calculation of Petroleum Quantities Using Dynamic Measurement Methods and Volume Correction Factors Part 4—Calculation of Base Prover Volumes by Waterdraw Method
API MPMS 12.2.5, Calculation of Petroleum Quantities Using Dynamic Measurement Methods and Volumetric Correction Factors Part 5—Base Prover Volume Using Master Meter Method
API MPMS 14.5, Calculation of Gross Heating Value, Relative Density, Compressibility and Theoretical Hydrocarbon Liquid Content for Natural Gas Mixtures for Custody Transfer
API MPMS 5.5, Fidelity and Security of Flow Measurement Pulsed-Data Transmission Systems
API MPMS 11.1, Physical Properties Data (Volume Correction Factors) (all relevant sections and tables, including computational routines)
API MPMS 11.2.2 , Compressibility Factors for Hydrocarbons: 0.350–0.637 Relative Density (60°F/60°F) and –50°F to 140°F Metering Temperature
API MPMS 11.2.2M, Compressibility Factors for Hydrocarbons: 350–637 Kilograms per Cubic Meter Density (15 °C) and–46°C to 60°C Metering Temperature
API MPMS 11.2.4, Temperature Correction for the Volumes of NGL and LPG Tables 23E, 24E, 53E, 54E, 59E, 60E
API MPMS 11.2.5, Simplified Vapor Pressure Correlation for Commercial NGLs
API MPMS 11.3.2.1, Ethylene Density

API MPMS 11.3.3.2, Propylene Compressibility
API MPMS 11.5, Density/Weight/Volume Intraconversion
API MPMS 12.2.1 , Calculation of Petroleum Quantities Using Dynamic Measurement Methods and Volume Correction Factors Part 1—Introduction
API MPMS 21.2, Electronic Liquid Volume Measurement Using Positive Displacement and Turbine Meters
API MPMS Chapter 14.3.1, Concentric, Square-Edged Orifice Meters Part 1—General Equations and Uncertainty Guidelines (ANSI/API MPMS 14.3.1-2003) (AGA Report No. 3, Part 1) (GPA 8185-90, Part 1)
API MPMS Chapter 14.3.2, Concentric, Square-Edged Orifice Meters Part 2—Specification and Installation Requirements (ANSI/API MPMS 14.3.2-2000) (AGA Report No. 3, Part 2) (GPA 8185-00, Part 2)
API MPMS Chapter 21.1, Electronic Gas Measurement

API MPMS 8.1, Sampling: Standard Practice for Manual Sampling of Petroleum and Petroleum Products
API MPMS 8.2, Sampling: Standard Practice for Automatic Sampling of Liquid Petroleum and Petroleum Products
API MPMS 8.3, Standard Practice for Mixing and handling of Liquid Samples of Petroleum and Petroleum Products
API MPMS 7.0, Temperature Determination
API MPMS 14.1, Manual of Petroleum Measurement Standards Chapter 14 – Natural Gas Fluids Measurement Section 1 – Collecting and Handling of Natural Gas Samples for Custody Transfer
API MPMS 14.6, Continuous density measurement API MPMS 14.7, Manual of Petroleum Measurement
Standards Chapter 14 – Natural Gas Fluids Measurement
Section 7 – Mass Measurement of Natural Gas LiquidsGPA STD 8182
API MPMS 14.8, Manual of Petroleum Measurement Standards Chapter 14 – Natural Gas Fluids Measurement Section 8 -Liquefied Petroleum Gas Measurement
API MPMS 20.1, Allocation Measurement
API MPMS 20.3, Measurement of Multiphase Flow
API MPMS 20.5, Recommended Practice for Application of Production Well Testing in Measurement and Allocation
API MPMS 12.2.2., Calculation of Petroleum Quantities Using Dynamic Measurement Methods and Volumetric Correction Factors, Part 2. -Measurement Tickets
API MPMS 3.1A, Standard Practice for the Manual Gauging of Petroleum and Petroleum Products
API RP 85, Use of Subsea Wet-gas Flowmeters in Allocation Measurement Systems
API 12B, Specification for Bolted Tanks for Storage of Production Liquids
API RP 14E, Recommended Practice for Design and Installation of Offshore Products Platform Piping Systems
API RP 551, Process measurement instrumentation API RP 555, Process Analyzer
API 620, Design and Construction of Large, Welded, Low- pressure Storage Tanks
API 650, Welded Steel Tanks for Fuel Storage
API RP 40, Recommended Practices for Core Analysis

API 14B, Design, Installation, Operation, Test, and Redress of Subsurface Safety Valve Systems
API RP 17L2, Recommended Practice for Ancillary Equipment for Flexible Pipes and Subsea Umbilicals
API RP 2GEO, Geotechnical and Foundation Design Considerations
API BULL 97, Well Construction Interface Document Guidelines

API Bull E3, Environmental Guidance Document: Well Abandonment and Inactive Well Practices for U.S. Exploration and Production Operations
API RP 13B-1, Field Testing Water-based Drilling Fluids API RP RP 13B-2, Field Testing Oil-based Drilling Fluids
API RP 13D, Rheology and Hydraulics of Oil-well Drilling Fluids
API RP 14B, Subsurface Safety Valve Systems

API RP 14J, Design and Hazards Analysis for Offshore Production Facilities
API RP 7G, Drill Stem Design and Operating Limits API RP 92U, Underbalanced Drilling Operations API SPEC 13A, Drilling Fluids Materials
API SPEC 14A, Subsurface Safety Valve Equipment

API RP 64, Diverter Systems Equipment and Operations API SPEC 16A, Drill-through Equipment
API SPEC 16C, Choke and Kill Equipment

API SPEC 16D, Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment
API Spec 16RCD, Drill Through Equipment Rotating Control Devices
API SPEC 17L1, Ancillary Equipment for Flexible Pipes and Subsea Umbilicals
API SPEC 2B, Fabrication of Structural Steel Pipe API SPEC 7K, Drilling and Well Servicing Equipment
API STD 16AR, Repair and Remanufacture of Drill-through Equipment
API STD 16AR, Repair and Remanufacture of Drill-through Equipment
API STD 53, BOP equipment systems for drilling wells

API SPEC 4F, Drilling and Well Servicing Structures

API STD 65-2, Isolating Potential Flow Zones During Well Construction
API TR 6AF, Capabilities of API Flanges Under Combinations of Load
API SPEC 5CRA, Corrosion Resistant Alloys

API RP 5C5, Procedures for testing of casing and tubing connections
API STD 521, Pressure relieving and depressuring systems
API SPEC 10A, Specification for Cements and Materials for Well Cementing
API SPEC 10D, Specification for Bow-string Casing Centralizers
API RP 10B, Recommended Practices for Testing Well Cements
API RP 10D, Recommended Practices for Centralizer Placement for Stop Collar Testing
API SPEC 10TR-4, Technical report on actions to take into account for the selection of activities for primary cementing report
API 5CT, Specifications for casing and tubing production

API 5C2, Bulletin performance properties of the casing, production and drilling
API SPEC 11D1, Packers and Bridge Plugs API SPEC 5DP, Steel drill pipe
API RP 74, Occupational Safety for Onshore Oil and Gas Production Operation
API RP 75L, Guidance Document for the Development of a Safety and Environmental Management System for Onshore Oil and Natural Gas Production Operation and Associated Activities

API RP 90-2, Annular Casing Pressure Management for Onshore Wells
API 14C, Analysis Design, Installation, and Testing of Basic Surface Safety Systems for Offshore Production
API RP 17N, Subsea Reliability and technical Risk management
API RP 2 MOP, Marine Operations

API RP 2A-WSD Planning, Designing, and Constructing Fixed Offshore Platforms— Working Stress Design
API RP 2RD, Design of Risers for Floating Production Systems and Tension Leg Platforms
API RP 65-2, Cementing Shallow Water Flow Zones in Deepwater Wells. Isolating Potential Flow Zones
API RP 65-1, Cementing Shallow Water Flow Zones in Deepwater Wells
API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide
API RP 53, Recommended Practices for Blowout Prevention Equipment Systems for Drilling Wells
API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations
API RP 90, Annular Casing Pressure Management for Offshore Wells
API RP 90-1, Annular Casing Pressure Management for Offshore Wells
API RP 96, Deepwater well design and construction

API Spec 16F, Specification for Marine Drilling Riser Equipment
API SPEC 17W, Subsea Capping Stacks

API RP 17B, Flexible pipe systems for subsea and marine applications
API RP 16Q, Design, selection and operation of marine drilling riser systems
API RP 17A, Design and operation of subsea production systems
API SPEC 17J, Unbonded flexible pipe systems for subsea and marine applications
API SPEC 17E, Subsea Umbilicals

API RP 75, Development of a Safety and Environmental Management Program for Offshore Operations and Facilities
API SPEC 17F, Subsea production control systems API RP 17G, Completion/ workover riser systems
API TR 1PER15K-1, Protocol for Verification and Validation of High-pressure High temperature Equipment
API HF1, Hydraulic Fracturing Operations – Weel Construction and Integrity Guidelines
API HF2, Water Management Associated with Hydraulic Fracturing
API HF3, Practice for Mitigating Surface Impacts Associated Hydraulic Fracturing
API RP 76, Contractor Safety Management for Oil and Gas Drilling and Production Operations
API RP 13 B-1, Standard Practice for Field Testing Water- Based Drilling Fluids
API 13 RP B-2, Standard Practice for Field Testing Oil- Based Drilling Fluids
API GD HF1, Hydraulic Fracturing Operations – Regulation for Well Construction and Integrity
API STD 689, Collection and exchange of reliability and maintenance data for equipment
API STD 2000, Venting of atmospheric and low-pressure storage tanks

API 16AR, Repair and Remanufacture of Drill-through Equipment
API 53, Well Control Equipment Systems for Drilling Wells
API 65-2, Isolating Potential Flow Zones During Well Construction
API TR 6AF, Technical Report on Capabilities of API Flanges Under Combinations of Load
API BULL E3, Wellbore Plugging and Abandonment Practices

API RP 53: Blowout Prevention Equipment Systems for Drilling Wells
API 65-2: Isolating Potential Flow Zones During Well Construction
API RP 7G: Drill Stem Design and Operating Limits
API RP 10D-2: Centralizer Placement and Stop-collar Testing
API RP 13B-1: Field Testing Water-based Drilling Fluids
API RP 13B-2: Field Testing Oil-based Drilling Fluids
API RP 13D: Rheology and Hydraulics of Oil-well Drilling Fluids
API RP 14B: Design, Installation, Repair and Operation of Subsurface Safety Valve Systems
API RP 14C: Analysis, Design, Installation, and Testing of Safety Systems for Offshore Production Facilities
API RP 14G: Fire Prevention and Control on Fixed Open- type Offshore Production Platforms
API RP 14H: Installation, Maintenance and Repair of Surface Safety Valves and Underwater Safety Valves Offshore
API RP 14J: Design and Hazards Analysis for Offshore Production Facilities
API RP 16Q: Design, Selection, Operation and Maintenance of Marine Drilling Riser System
API RP 65-1: Cementing Shallow-water Flow Zones in Deepwater Wells
API RP 96: Deepwater Well Design and Construction
API RP 1111: Design, Construction, Operation, and Maintenance of Offshore Hydrocarbon Pipelines
API RP 2A-WSD: Planning, Designing, and Constructing Fixed Offshore Platforms-Working Stress Design
API RP 2SIM: Structural Integrity Management of Fixed Offshore Structures

API RP 575: Inspection Practices for Atmospheric and Low-Pressure Storage Tanks
API RP 580: Risk-Based Inspection
API RP 615: Valve Selection Guide
API 594: Check Valves: Flanged, Lug, Wafer, and Butt- welding
API 600: Steel Gate Valves-Flanged and Butt-Welding Ends, Bolted Bonnets
API 602: Gate, Globe, and Check Valves for Sizes DN 100 (NPS 4) and Smaller for the Petroleum and Natural Gas Industries
API 603: Corrosion-Resistant, Bolted Bonnet Gate Valves- Flanged and Butt-Welding Ends
API 607: Fire test for quarter-turn Valves and Valves Equipped with non-metallic seats
API 608: Metal Ball Valves-Flanged, Threaded, and Welding Ends
API 609: Butterfly Valves: Double-Flanged, Lug- and Wafer-Type
API 610: Centrifugal Pumps for Petroleum, Petrochemical and Natural Gas Industries
API 622: Type Testing of Process Valve Packing for Fugitive Emissions
API 624: Type Testing of Rising Stem Valves Equipped with Flexible Graphite Packing for Fugitive Emissions
API 641: Type Testing of Quarter-Turn Valves for Fugitive Emissions
API 682: Pumps – Shaft Sealing Systems for Centrifugal and Rotary Pumps
API 1004: Bottom Loading and Vapor Recovery for MC-306 and DOT-406 Tank Motor Vehicles
API RP 1615: Installation of Underground Petroleum Storage Systems
API RP 1621: Bulk Liquid Stock Control at Retail Outlets

API RP 1632: Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems
API RP 3000: Classifying and Loading of Crude Oil into Rail Tank Cars
API 1004: Bottom Loading and Vapor Recovery for MC-306 and DOT -406 Tank Motor Vehicles
API 617: Axial and Centrifugal Compressors and Expander-compressors
API SPEC 6D: Pipeline and Piping Valves
API SPEC 12F: Shop Welded Tanks for Storage of Production Liquids

API SPEC 12K: Indirect-Type Oil Field Heaters

API RP 2A WSD: Planning, Designing, and Constructing Fixed Offshore. Platforms—Working Stress Design
API RP 2GEO: Geotechnical and Foundation Design Considerations
API RP 2MET: Derivation of Metocean Design and Operating Conditions

API RP 13B-1: Field Testing Water-based Drilling Fluids API RP 13B-2: Field Testing Oil-Based Drilling Fluids
API RP 13C: Drilling Fluid Processing Systems Evaluation
API RP 13D: Rheology and Hydraulics of Oil-well Drilling Fluids
API RP 13I: Laboratory Testing of Drilling Fluids
API RP 14B: Design, Installation, Operation, Test, and Redress of Subsurface Safety Valve Systems
API SPEC 12A: Oil Storage Tanks with Riveted Shells
API SPEC 12B: Bolted Tanks for Storage of Production
API SPEC 12D: Field-welded Tanks for Storage of Production Liquids
API SPEC 12F: Specification for Shop Welded Tanks for Storage of Production Liquids
API SPEC 14A: Specification for Subsurface Safety Valve Equipment
API SPEC 5CT: Casing and Tubing
API 53: BOP Equipment Systems for Drilling
API 2000: Venting Atmospheric and Low-Pressure Storage Tanks: Nonrefrigerated and Refrigerated
API 6A: Specification for Wellhead and Christmas Tree Equipment
API STD 65-2: Isolating Potential Flow Zones During Well Construction
API 2350: Overfill Protection/or Storage Tank in Petroleum Facilities