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Control of Industrial Major Accident Hazards (CIMAH) Report Page 25
Ranhill SAJ Sdn. Bhd. Revision 01
Part C: Information Relating to the Safety Management System Date Aug 2019

C.2.2.3 Safe way to store hazardous substances

The chlorine cylinder / drum is stored at the Chlorine Room a designated storage
area. The chlorine room is in a cool, dry, and well-ventilated condition. Unauthorized
personnel are not allowed to enter the chlorine room without obtaining authorization.
The chlorine storage area is provided with chlorine drum skid. Each chlorine drums
are placed on a skid to prevent it from shifting its position at the chlorine plant.
Sodium Silicofluoride is stored at the chemical building. The chemical building is well
ventilated with a cool and dry condition. Bags of sodium silicofluoride are stored on
pallets in stacks not more than six bags high. Under proper storage conditions,
sodium silicofluoride should be stable up to 12 months.

C.2.2.4 Safe Handling of Hazardous Substances

The chlorine cylinders / drums are transported the plant by truck and coordinated by
the supplier as detailed in the contract agreement. Upon the arrival, the plant
personnel will conduct receiving inspection before accepting the chlorine cylinder /
drum. Once approved, the chlorine drum will be stored at the Chlorine Room. The
chlorine drum is lifted into the chlorine drum laydown area by using the overhead
monorail crane. The chlorine drum is lifted and placed on the chlorine drum skid in a
safe and controlled manner by trainer personnel.

The sodium silicofluoride bags are transported to th plant by truck and coordinated
by the supplier as detailed in the contract agreement. The bags of sodium
silicofluoride are stored at the chemical building. The workers require to load the
sodium silicofluoride into the holding tank to the amount of required dosage.

C.2.2.5 Emergency System and Facilities

Prompt and effective emergency detection, notification and response systems and
facilities are essential during an emergency. The main emergency systems and
facilities available are summarized below:
• Alarm System – Relevant alarms are provided at strategic locations within the
plants for alerting the personnel of an emergency situation;
• Gas Detection – Gas leak detectors are installed within the Chlorine cylinders
/ drums storage and the Chlorinator Room for early detection of chlorine
leakage;
• The Chlorine cylinders / drums that are attached to the process on-duty or on
standby are equipped with isolation valves to shut off the source of chlorine
leak;