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GUIDELINES FOR THE ESTABLISHMENT OF A NATURAL GAS PLANT FACILITY IN NIGERIA. DPR 2006

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2.2.3 SAFETY FACTORS 
 
a) 
All offices, warehouses and process buildings shall be constructed with utmost 
consideration for the safety of the workers and equipment. Laboratory building 
construction shall take into consideration the safety of personnel and provision 
of adequate ventilation as well as that for proper disposal of waste. 
 
b) 
Material Safety Data Sheet (MSDS) shall be prepared in respect of all 
potentially hazardous chemicals and materials. 
 
c) 
Emergency alarm system and evacuation programs shall conform to Standard 
Industry Practice to the satisfaction of the Director. 
 
d) 
Initiation of an ESD should activate audible and visual alarms at the main 
control point. Alarms should be displayed in such a way that the location and 
the source of initiation of the ESD can be readily identified at the main control 
point. 
 
e) 
Power supplies for the ESD logic system should be arranged such that 
automatic changeover to a standby supply is available in the event of failure of 
the normal supply. 
 
f) 
Noise level at any point of the facility emanating from the engines and fluid 
velocities in the pipelines shall not exceed 85 dB (It mean tolerable limit). In 
areas of the facility where this level is exceeded, wearing of earmuff shall be 
mandatory. The noise level in living quarters shall not exceed 45 dB. 
 
g) 
The flare stack shall be located at a distance of at least 60m (200ft) from the 
unit or storage tanks and the flare shall conform to the approved limit of 
atmospheric emission. 
 
h) 
The automatic control system for emergency shutdown of all strategic or critical 
equipment in the gas plant such as columns, fired heaters, separators, surge 
vessels, pipeline and manifolds compressors and pump discharge headers shall 
be based on fail-safe logic designs. 
 
i) 
Fire sensors and gas detection and alarm system shall be installed at strategic 
points of the gas plant and its offsite facilities. In addition, adequate fire 
mitigation systems shall be provided at all identified fire risk areas of the gas 
plant.