API 2554 : 1966

MEASUREMENT AND CALIBRATION OF TANK CARS

American Petroleum Institute

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Scope
PART I - PROCEDURE FOR CALIBRATING NONPRESSURE TANK CARS
  General
Water Gage Plant Procedure
  Design and Construction of Gage Plants
Calibration of Water Gage Plants
  Primary Measures
  Intermediate Measures
  Procedure for Calibrating Gage Tanks
  Procedure for Calibrating Finishing Tanks
  Check Gage Plant
  Procedure for Calibrating Single-Compartment Tank Car Tanks
Entire Outage Table
  General
  Procedure for Obtaining Outage Table
Water-Weighing Procedure
  General
  Definitions
  Procedure
Calibrating Single-Compartment Tank Car Tanks by External
Strapping Procedure
  Equipment
  Measuring Procedure
  Recording of Data
  Computation of Tank Volume
  Dome Capacity
  Tank Capacity
  Preparation of Volume Table
PART II - PROCEDURE FOR CALIBRATING PRESSURE TANK CARS
  General
  Installation of Gage Tube (Slip Tube)
Water Gage Plant Procedure
  Procedure for Calibrating Pressure-Type Tank Car Tanks
  Calibrating Pressure-Type Tank Cars for Incremental Capacity
  Tables
  Preparation for Calibrating
  Calibrating Car Tanks for Incremental Capacity Tables
  Preparation of Gage Tables by Calculations
  Water-Weighing Procedure
  Definitions
  Procedure
APPENDIX - Tables for Determination of Incremental Volumes and
           Water Density Coefficients

Abstract

Defines the procedures for calibrating tank cars. It is presented in two parts: Part I (Sections 2 to 21) outlines procedures for nonpressure-type tank cars; Part II (Sections 22 to 31) outlines procedures for pressure-type tank cars.