Library / Extraordinary Federal Republic of Nigeria Official Gazette No. 33
Extraordinary Federal Republic of Nigeria Official Gazette No. 33

Page 7 of 17
B 26 
By-pass of 
measurement 
system. 
Measurement 
methods. 
Metering 
System 
Design. 
Testing. 
Nie 
ait 
calibration 
and 
inspection of 
measurement 
system. 
(3) 
A reference temperature and pressure of 15°C and 101.325 kPa 
may be used for petroleum products and liquefied natural gas. 
9. 
The by-pass of a meter bank, dispensing pump. loading gantry. ov 
provision for reverse flow through the meter bank ofany measurement system 
is prohibited. 
10.—(1) 
The primary measurement method 
for determining the 
quantities of natural gas or its derivatives, crude oil or its derivatives. condensate, 
petroleum liquids. petroleum products. or any other form of petroleum liquids 
shall be by dynamic measurement method. 
(2) Notwithstanding 
the provisions 
of subregulation 
(1) 
oF this ¢ 
Hation, 
where dynamic measurement method 
is not applicable. static measurement 
method shall apply subject to conditions prescribed by the Authority, 
Parr 1V — DESIGN OF METERING SYSTEM AND FPS OPERATION 
11.—(1) 
A metering system for measuring natural gas or its derivatives, 
erude oil or its derivatives. condensate, petroleum liquids, petroleum products 
orany other form of petroleum liquids shall not be designed w ithout the approval 
of the Authority. 
(2) Ameter bank shall be designed to 
N+1 philosophy and make provisions 
for proving system. 
(3) Anapplication for approval under subregulation 
(1) 
of this regulation 
shall be accompanied with — 
(a) 
the type of meter selected and selection criteria 
; 
(>) design philosophy 
; 
(c) 
fluid properties 
: 
(d¢) type of proving method 
; 
(v) location 
: and 
(f) 
project cost estimate. 
(4) The design and location of a metering system shall be such that it is 
easily accessible 
for condition monitoring, maintenance, replacement. 
recertification, and repair works. 
12.—(1) A licensee or permit holder shall not procure, fabricate, assemble, 
integrate, ship, install, modify, or commission a measurement system, sampling 
system, proving system, or flow computer without conducting appropriate tests, 
calibration, inspection and verification exercises. 
(2) 
The Authority shall witness the activities stated in subregulation (1) 
of this regulation. 
(3) 
The result ofa test in sub-regulation 
(1) 
of this regulation at fabrication 
shop or site, shall be validated to ensure the 
prescribed by the Authority. 
‘stem meets the requirements