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

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iii. 
Have the constituent elements varying between the following percentage limits 
(in molecular percentages) 
 
Methane (C1)                                                   Between 87.0 and 96.0 
Ethane (C2)                                                       Equal to or Lower than 9.0 
Propane (C3)                                                    Equal to or Lower than 4.0 
Isobutane (C4)                                                 Equal to or Lower than 1.0 
Normal butane (nC4)                                     Equal to or Lowe than 1.5 
Pentanes (C5+)                                                 Equal to or Lower than 0.1 
Molar sum of propane (3)  
And heavier hydrocarbon components         Equal to or Lower than 5.3  
 
1.16.2 CERTIFICATE OF QUANTITY 
The following information should form the basis for certificate of quantity; 
PARAMETER 
UNITS 
Volume Loaded (Net) 
M³ 
MASS LOADED (Net) 
MT 
GROSS ENERGY LOADED 
KWh 
Gross energy loaded  
MMBTU 
VAPOUR RETURNS  
MMBTU 
WOBBE INDEX  
 
MJ/Sm³ 
DENSITY (at 15◦C) 
Kg/m³ 
GROSS CALORIFIC VALUE (Volumetric) 
MJ/Sm³ 
GROSS CALORIFIC VALUE (Mass) 
MJ/kg 
NET CALORIFIC VALUE 
MJ/Sm³ 
GAS CONSUMED  
MMBTU 
COOL DOWN  
MMBTU 
GAS UP 
MMBTU 
Opening custody transfer survey  
Closing custody transfer survey 
SIGNATURES AND NAMES  
DPR REP: 
TERMINAL OPERATOR’S REP: 
CONSIGNOR’S REP: 
DATED AT 
VESSEL NAME: 
CONSIGNOR: 
CONSIGNEE: 
CARGO ID: 
PRODUCT: 
TERMINAL: 
COMMENCED LOADING (DATE/TIME): 
COMPLETED LOADING (DATE/TIME):