hierarchy of controls
DESCRIPTION
My Tiger model of the Hierarchy of ControlsTRANSCRIPT
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By Marlowe M. Chica
THE HIERARCHY OF CONTROLS
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When determining controls, or considering changes to existing controls, consideration shall be given to reducing the risks according to the following hierarchy:
OHSAS 18001:2007
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Removal of a machine/equipment or a process or part of a process to eliminate the hazard
e.g. Outsourcing of a process to a third party company/supplier/service provider
ELIMINATION
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SUBSTITUTION
Substitute a less hazardous material or reduce the system energy
e.g. lower the force, amperage, pressure, temperature, etc.
e.g. use of water based paint instead of solvent-based
e.g. Mercury free medical instruments
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ENGINEERING CONTROLS
Enclosure or barriers to isolate source of hazard from workers
e.g. ventilation systems, machine guarding, fume hoods, sound enclosures
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ADMINISTRATIVE CONTROLS
Changes/modifications in the work process / SOP’s
Safety Signs, Safe Work Permits, Job Rotations, Rest Periods, Safety Procedures
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PERSONAL PROTECTIVE EQUIPMENT
Specialized clothing or equipment worn by employees for protection against health and safety hazardse.g. ear plugs, face masks, respirator masks, goggles, safety shoes, hard hats