Injury Illness Prevention Plan - Flipbook - Page 103
Health and Safety Program Manual
Teamwrkx
Construction, Inc.
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Issue Date: 10/16/23
Revision Date: 10/16/23
Explosive Atmosphere Safety
Reference: A-3
what dangerous substances are in their workplace and what the risks are
put control measures in place to either remove those risks or, where this is not possible, control
them
put controls in place to reduce the effects of any incidents involving dangerous substances
prepare plans and procedures to deal with accidents, incidents and emergencies involving
dangerous substances
ensure workers are properly informed about and trained to control or deal with the risks from
the dangerous substances
identify and classify areas of the workplace where explosive atmospheres may occur and avoid
ignition sources (from unprotected equipment, for example) in those areas
Workers
Qualified workers must follow the safe work procedures when working in an explosive atmosphere
environment, including proper use of equipment and tools, clean up equipment and personal protective
equipment (PPE).
Unqualified works are restricted to performing tasks unless under the direct supervision of a qualified worker
or supervisor.
PROCEDURES
Risks
The Company will assess the risks of fires and explosions that may be caused by dangerous substances and
explosive atmospheres in the workplace, including risks caused by gases under pressure, organic materials, and
substances that are corrosive to metals. All identified risks must be eliminated or reduced as far as reasonably
practicable to protect the worker, environment, public, and assets.
Fires and explosions create harmful physical effects - thermal radiation, overpressure effects and oxygen
depletion. These effects can also be caused by other energetic events such as runaway exothermic reactions
involving chemicals or decomposition of unstable substances such as peroxides. Gases under pressure can also
cause explosions creating harmful effects. Substances that are corrosive to metal may cause damage to
metal/metal containing structures which could result in reduced structural integrity.
The following examples illustrate the type of activities that could create an explosive atmosphere:
storage of fuel for cars, boats, or horticultural machinery
use of flammable gases, such as acetylene, for welding
handling and storage of waste dusts in a range of manufacturing industries
handling and storage of flammable wastes such as fuel oils
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