sedikit info dari HIRARC
"Hazard": is the potential to cause harm to a person or to the natural environment.
"Risk": means a combination of the severity and likelihood of harm arising from a hazard.
"Risk assessment": is the process of evaluating the severity and likelihood of harm arising from a hazard.
"Risk control": is the process of implementing measures to reduce the risk associated with a hazard. The control process must follow the control hierarchy, in order, as prescribed in some health and safety legislation. It is important that control measures do not introduce new hazards, and that the ongoing effectiveness of the controls is monitored.
"Risk control hierarchy": ranks risk control measures in decreasing order of effectiveness:
* elimination of hazard;
* substitution of hazardous processes or materials with safer ones;
* engineering controls;
* administrative controls; and *
personal protective equipment.
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