Samples Job Safety Analysis Page 18
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421. Eliminate the hazard
STEP 4:
This is the most effective measure because
How are preventive measures
the risk is eliminated. Examples of options
determined?
in this category are:
choose a different process;
The fourth step in a JSA is determining
modify an existing process by
ways to eliminate or mitigate the hazards
changing the energy type;
identified. There are two approaches for
doing this:
modify or change equipment or tools;
A)Hazard control strategies.
lock out energy sources.
B) Energy-barrier approach involving
2. Substitute the hazard with less or
controls:
non-hazardous options
at the source;
This measure is very effective, especially for
along the path; and
hazardous substances, but its application in
safety field is practicable. Here are some
at the person.
examples:
The objective of both approaches is the
replace solvents by water solutions;
same: the prevention of injuries, illnesses,
and other losses. Preventive measures
substitute vapour heating by electric
depend on the findings of the JSA and not
devices;
the method to perform it (i.e., the change
use electronic controls instead of
analysis technique or the energy barrier
pneumatic ones;
approach).
crush explosive dusts in inert gas
A) Hazard control strategies
atmosphere instead of air;
The following are common hazard control
use a non-sparking copper hammer in a
strategies, in order of preference:
flammable atmosphere in lieu of steel
hammer.
1. Eliminate the hazard.
2.Substitute the hazard with less
3. Minimize the risk due to the hazard
hazardous or non-hazardous options.
If the hazard cannot be eliminated or substi-
3.Minimize the risk due to the hazard:
tuted, efforts should be made to minimize
the risk to the employee due to the injurious
- Reduces the exposition.
contact with the hazard. This is achieved by
- Isolate the hazard.
using one or a combination of the following
- Provide personnel protective
methods of control:
equipment and clothing.
Reduce the exposure
- Implement administrative controls.
Change the design of the workstation.
4. Have an emergency plan in place.
Improve environment (e.g. ventilation).
5. Adopt measures to reduce damage
following an accident or emergency.
Implement emission controls.
Add safety and alert devices.
Develop safety procedures.
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