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

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2.4.2       Specification of Manual Sampling Apparatus ................................................ 20 
2.4.3 Guideline for Manual Tank Sampling ................................................................... 20 
2.4.4 General Precautions ............................................................................................. 21 
2.4.5   Sampling Procedure ........................................................................................... 22 
2.4.6 Sampling using Portable Manual Sampling Unit (PSU) ........................................ 22 
2.4.7 Determination of Tank Temperature................................................................... 22 
2.4.7.1 Equipment ......................................................................................................... 22 
2.4.7.2 Tank Temperature Measurement .................................................................... 22 
2.5 Automatic Sampling at Production and Custody Transfer Points .......................... 23 
2.5.3   Design of Automatic Sampling System .............................................................. 23 
2.5.3.1 Design Principle ................................................................................................. 23 
2.5.3.2 Applicable Standards ........................................................................................ 23 
2.5.3.3   Sampler Probe ................................................................................................. 23 
2.5.3.4 Sample Receivers .............................................................................................. 24 
2.5.3.5    Other Ancillary devices .................................................................................. 24 
2.5.3.6 Performance Monitoring and Failure Alarms ................................................... 24 
2.5.4 Installation of Automatic Sampling System ......................................................... 24 
2.5.5    Operation of Automatic Sampling System ........................................................ 25 
2.5.6 Maintenance and Proving of Automatic Sampler................................................ 26 
PART I SECTION 3 .......................................................................................................... 27 
PROCEDURE GUIDE FOR PETROLEUM AND PETROLEUM PRODUCTS QUALITY 
DETERMINATION ............................................................................................ 27 
3.1   Quality parameters for Fiscal Measurement ........................................................ 28 
3.1.1     Relative Density (Specific Gravity) ................................................................... 28 
3.1.2    API Gravity ......................................................................................................... 28 
3.1.3    Base Sediment and Water (BS&W) ................................................................... 28 
3.2 Procedure for Determining Relative Density (Specific Gravity).............................. 28 
3.2.1 Equipment Specification ...................................................................................... 28 
3.2.2 Procedure ............................................................................................................. 29