© 2019 Department of Petroleum Resources. All rights reserved Department of Petroleum Resources (DPR) PROCEDURE GUIDE

Page 2 of 114
 
1 | P a g e 
 
 
TABLE OF CONTENTS 
PART 1 ........................................................................................................................... 13 
PART 1 SECTION 1 ......................................................................................................... 13 
PURPOSE, APPLICATION AND GENERAL PROVISIONS .................................................. 13 
1.0 Purpose ................................................................................................................... 14 
1.1 Application .............................................................................................................. 14 
1.2 General Provisions .................................................................................................. 14 
1.3 CLASSES OF MEASUREMENTS. ................................................................................ 15 
1.3.1 CLASS A MEASUREMENT ..................................................................................... 15 
1.3.2 CLASS B MEASUREMENT ...................................................................................... 15 
1.3.3 CLASS C MEASUREMENT ...................................................................................... 15 
1.4.4 CLASS D MEASUREMENT ..................................................................................... 15 
1.5 UNCERTAINTY ANALYSIS ......................................................................................... 15 
PART I SECTION 2 .......................................................................................................... 16 
GUIDE FOR STATIC MEASUREMENT (TANK GAUGING) OF PETROLEUM AND PETROLEUM 
PRODUCTS ...................................................................................................... 16 
2.0 Definition ................................................................................................................ 17 
2.1 Applicable Standards .............................................................................................. 17 
2. 3 Procedure for Tank Gauging .................................................................................. 18 
2.3.1 Preparation of Tank for Gauging ......................................................................... 18 
2.3.2    Tank Gauging ..................................................................................................... 18 
2.3.4 General Specification for Manual Gauging Using Ullage, Temperature and Interface 
(UTI) ....................................................................................................................... 18 
2.3.5   Precautions to be Taken Prior to Commencement of Manual Gauging ............ 19 
2.3.6 Manual Gauging Sequence .................................................................................. 19 
2.3.6.2 Innage Method.................................................................................................. 19 
2.3.6.2 Ullage method ................................................................................................... 20 
2.4 Manual Sampling of Tank Contents ........................................................................ 20 
2.4.1   Purpose .............................................................................................................. 20