API 2550 : 1965

Name: API 2550 : 1965
Brand: API

Superseded

View Superseded by

MEASUREMENT AND CALIBRATION OF UPRIGHT CYLINDRICAL TANKS

Available format(s)

Hardcopy , PDF

Superseded date

07-23-2013

Language(s)

English

Published date

01-01-1965

Publisher

American Petroleum Institute

Scope
Definitions
Significance
Tank-measuring equipment and its calibration
Measuring tapes
Accessory equipment
General practices
Part 1. Measurement procedures
Conditions for measurements
Disputes
Tank numbers
Interrupted measurements
Descriptive data
Upright cylindrical tank shells - aboveground
Classification of tank services
Expansion and contraction of steel tank shells due to
liquid head and temperature
Effect of tilt on cylindrical tank shell
Recalibration of welded, riveted, or bolted tanks
Tolerances
Shell plate thickness
Vertical tank measurements
Preparations for circumferential measurements
Circumferential measurements
Deadwood
Tank bottoms
Tank bottoms - flat type
Tank bottoms - conical, hemispherical, semiellipsoidal,
and spherical segment
Tank roofs other than fixed roofs
Floating roofs
Measurement procedure for floating-roof displacement
Variable volume roofs
Wooden tanks
General
Terminology
Tolerances
Previous data
Vertical measurements of regular-type wooden tanks
Circumferential measurements of regular-type wooden
tanks
Barrel and other types of wooden tanks
Deadwood
Underground tanks
Conditions and procedures for measurements
Diameter measurements for upright cylindrical steel
underground tanks
Diameter measurements for upright cylindrical concrete
underground tanks
Measurements for rectangular steel or concrete
underground tanks
Calibration based on drawings
Outside insulated tanks
Conditions and procedures for measurements
Part II. Tank capacity calculation procedures
General
Gage tables
Conversion of outside to inside circumferences
Significant figures
Interpolations
Extrapolation
Weighted averages
Deadwood deductions
Upright cylindrical steel tanks - aboveground
Incremental height capacity basis
Disregarded tank volume
Deductions for circumference tape rises
Expansion and contraction of steel tank shells due to
liquid head
Expansion and contraction of steel tank shells due to
temperature
Effect of tilt on cylindrical portion of tank
Effect of out-of-round condition
Floating roofs and variable volume roofs
Floating roofs
Variable volume roofs
Appendix I Example of calculations for upright
cylindrical steel-tank - aboveground
Appendix II Constants, equations, conversion factors,
and tables

Outlines the procedures for calibrating upright cylindrical tanks larger than a barrel or drum. In two parts. The first covers procedures for making necessary measurements to determine total and incremental tank volumes; the second presents the recommended procedure for computing volumes. Coverage includes definitions, measuring tapes, accessory equipment, tank numbers, interrupted measurements, tolerances, vertical tank measurements, shelling plate thickness, wooden tanks, tank bottoms, and incremental height capacity basis.

DocumentType	Standard
Pages	60
PublisherName	American Petroleum Institute
Status	Superseded
SupersededBy	API 2550 : 65(R1992)

API MPM CH2.2B:1989	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 2: TANK CALIBRATION - SECTION 2B: CALIBRATION OF UPRIGHT CYLINDRICAL TANKS USING THE OPTICAL REFERENCE LINE METHOD
API MPM CH2.8A : 1991 : R2007	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 2 - TANK CALIBRATION - SECTION 8A - CALIBRATION OF TANKS ON SHIPS AND OCEANGOING BARGES
API MPM CH2.8A : 1991 : R2018	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 2 - TANK CALIBRATION - SECTION 8A - CALIBRATION OF TANKS ON SHIPS AND OCEANGOING BARGES
API MPM CH2.8A:1991	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 2 - TANK CALIBRATION - SECTION 8A - CALIBRATION OF TANKS ON SHIPS AND OCEANGOING BARGES
API MPM CH2.8A : 1991(R2012)	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 2 - TANK CALIBRATION - SECTION 8A - CALIBRATION OF TANKS ON SHIPS AND OCEANGOING BARGES
API MPM CH20.1 : 1993 : INC : ADD 1 : 2013 : R201100	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 20 - ALLOCATION MEASUREMENT - SECTION 1 - ALLOCATION MEASUREMENT
API MPM CH2.7:1991	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 2: TANK CALIBRATION - SECTION 7: CALIBRATION OF BARGE TANKS
API MPM CH2.7 : 1991 : R2008	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 2: TANK CALIBRATION - SECTION 7: CALIBRATION OF BARGE TANKS
API MPM CH20.1 : 1993( R2016)	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 20 - ALLOCATION MEASUREMENT - SECTION 1 - ALLOCATION MEASUREMENT
API MPM CH20.1 : 1993 : R2011	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 20 - ALLOCATION MEASUREMENT - SECTION 1 - ALLOCATION MEASUREMENT
API MPM CH20.1 : 1993 : R2006	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 20 - ALLOCATION MEASUREMENT - SECTION 1 - ALLOCATION MEASUREMENT
ASTM D 4738 : 1990	Practice For Calibration Of Upright Cylindrical Tanks Using Optical Reference Line Method (Withdrawn 1995)
API MPM CH2.7 : 1991(R2014)	Tank Calibration: Calibration of Barge Tanks
API MPM CH2.2B : 1989 : R2007	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 2: TANK CALIBRATION - SECTION 2B: CALIBRATION OF UPRIGHT CYLINDRICAL TANKS USING THE OPTICAL REFERENCE LINE METHOD
API MPM CH20.1 : 1993	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 20 - ALLOCATION MEASUREMENT - SECTION 1 - ALLOCATION MEASUREMENT
API MPM CH2.2B : 1989 : R2013	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 2: TANK CALIBRATION - SECTION 2B: CALIBRATION OF UPRIGHT CYLINDRICAL TANKS USING THE OPTICAL REFERENCE LINE METHOD

API 2555 : 1966	METHOD FOR LIQUID CALIBRATION OF TANKS
API 2551 : 1965	MEASUREMENT AND CALIBRATION OF HORIZONTAL TANKS
API 2553 : 1ED 66(R1987)	MEASUREMENT AND CALIBRATION OF BARGES