Table of Contents

2.2A.1. Scope
2.2A.2. Referenced Publications
2.2A.3. Safety
2.2A.4. Definitions
2.2A.5. Significance
2.2A.6. Equipment
         2.2A.6.1 Tapes for Height Measurement
         2.2A.6.2 Tapes for Circumference Measurement
         2.2A.6.3 Accessory Equipment
2.2A.7. Calibration of Working Tape with the Master Tape
2.2A.8. General Practices
2.2A.9. Tank Status Before Calibration
2.2A.10. Descriptive Data
2.2A.11. Tolerances
2.2A.12. Shell Plate Thicknesses
2.2A.13. Vertical Tank Measurements
2.2A.14. Circumferential Measurements
         2.2A.14.1 Preparation
         2.2A.14.2 Physical Measurements
2.2A.15. Deadwood Measurement
2.2A.16. Tank Bottoms
2.2A.17. Floating Roofs
         2.2A.17.1 General
         2.2A.17.2 Floating Roof Weight
         2.2A.17.3 Deadwood Determination
         2.2A.17.4 Deducting Floating Roof Displacement
2.2A.18. Insulated Tanks
2.2A.19. Tank Capacity Table Development: Calculation
         Procedures
         2.2A.19.1 Capacity Table Requirements
         2.2A.19.2 Calibration of the Master Tape to 60 deg F
         2.2A.19.3 Conversion of Outside to Inside Circumferences
         2.2A.19.4 Deductions for Circumference Tape Rises
         2.2A.19.5 Expansion and Contraction of Steel Tank Shells
                    Due to Liquid Head
         2.2A.19.6 Expansion and Contraction of Steel Tank Shells
                    Due to Temperature
         2.2A.19.7 Effect of Tilt on Cylindrical Portion of Tank
         2.2A.19.8 Floating Roofs
                    2.2A.19.8.1 Liquid Calibration for Floating Roof
                                Displacement
                    2.2A.19.8.2 Measurement Procedure for Floating
                                Roof Displacement
                    2.2A.19.8.3 Liquid Level Above Position B
                    2.2A.19.8.4 Capacity Table With Floating Roof
                                Treated as Deadwood
                    2.2A.19.8.5 Capacity Table of Gross or
                                Open-Tank Capacity
         2.2A.19.9 Summary Data on the Capacity Table
         2.2A.19.10 Recalibration Requirements
         2.2A.19.11 Certification of Capacity Tables
APPENDIX A - GUIDELINES FOR RECALIBRATION OF STORAGE TANKS
APPENDIX B - EXAMPLE CALCULATIONS FOR UPRIGHT CYLINDRICAL
             STEEL TANK - ABOVEGROUND
APPENDIX C - GUIDELINES FOR COMPUTER INPUT
APPENDIX D - SHELL TEMPERATURE CORRECTION FACTORS
APPENDIX E - UNDERGROUND TANKS
APPENDIX F - TANK CALIBRATION METHOD SELECTION

Abstract

Defines the procedures for calibrating upright cylindrical tanks used primarily for the storage of petroleum liquids.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Petroleum Institute
ProductNote	Reconfirmed 1995
Pages
ISBN