Table of Contents

API Foreword
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Precautions
5 Equipment
   5.1 Electro-optical distance-ranging instrument
   5.2 Instrument mounting
   5.3 Laser-beam emitter
   5.4 Stadia
   5.5 Auxiliary equipment
6 General considerations
7 EODR instrument set up within the tank
8 Selection of target points
   8.1 Introduction
   8.2 Location of target points - General principle
   8.3 Cylindrical courses
   8.4 Heads
9 Procedure for calibration
10 Tolerances of reference target points
   10.1 Distance verification
   10.2 Verification of horizontal and vertical angels
11 Additional measurements
   11.1 Reference-height determination and reference-point
        position
   11.2 Data
   11.3 Drawings
12 Calculation and development of capacity tables
Annex A (normative) Determination of the limiting angle of
                      incidence
Annex B (informative) Numerical example

Abstract

Describes a method for the calibration of horizontal cylindrical tanks having diameters greater than 2 m (6 ft) by means of internal measurements using an electro-optical distance-ranging instrument, and for the subsequent compilation of tank-capacity tables. This method is known as the internal electro-optical distance-ranging (EODR) method.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Petroleum Institute
ProductNote	Reconfirmed 2014
Pages
ISBN