Manual of Petroleum Measurement Standards Chapter 2.2G

Calibration of Upright Cylindrical Tanks Using the Total Station Reference Line Method

FIRST EDITION, JULY 2014

REAFFIRMED, NOVEMBER 2019

Special Notes

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Copyright © 2014 American Petroleum Institute

Foreword

Chapter 2.2G of the Manual of Petroleum Measurement Standards should be used in conjunction with API MPMS Chapter 2.2A, Measurement and Calibration of Upright Cylindrical Tanks by the Manual Tank Strapping Method. Units of measure in this publication are in International System (SI) and U.S. customary (USC) units consistent with North American industry practices.

Shall: As used in a standard, “shall” denotes a minimum requirement in order to conform to the specification.

Should: As used in a standard, “should” denotes a recommendation or that which is advised but not required in order to conform to the specification.

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Contents

Page

1. Scope 1

2. Normative References 1

3. Terms and Definitions 1

4. Application of the Total Station Reference Line Method 1

5. Electro-optical Device General Requirements 1

6. Electro-optical Device Calibration and Recalibration 2

7. Electro-optical Device Field Verification 2

   1. Field Verification 2

   2. Verification Procedure 2

   3. Acceptability Criteria 4

8. Electro-optical Device Field Setup Procedure 4

   1. General 4

   2. Horizontal and Vertical Stations 4

   3. Horizontal Station Setup 4

   4. Instrument Setup for Vertical Stations at Horizontal Station 5

   5. Electro-optical Device Stability 5

9. Measurements 5

   1. Master Tape 5

   2. Master Working Tape 6

   3. Working Tape 6

   4. Reference Circumference 7

   5. Distance and Angular Measurements 9

10. Computation of Course Diameters 9

11. Development of the Capacity Table 10

Tables

1. Number of Horizontal Stations 4

2. Reference Circumference Tolerances (Soft Conversions) 9

Figures

1. TSRLM Device Verification at Site: Stadia Horizontal 11

2. TSRLM Device Verification at Site: Stadia Vertical 12

3. Distance and Vertical Angle 13

4. Setting Location of Vertical Station Tangential Traverse Method 14

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