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- Check
blasting equipment for condition, capacity, etc. prior
to loading the shot.
- Arrive
at the blast site early. Allow yourself ample time to
load and connect shots. Misfires are caused by hurrying.
- Observe
the formation and drill pattern prior to loading. Look
for mud seams, soft material, light burdens and spacing.
- Diagram
the shot as drilled. Time your shot using MS numbers,
rather than cap numbers. Review timings before caps are laid out.
- Calculate
powder factors prior to loading. Measure burden, spacing
and depth. Don't use the driller's measurements!
- Keep
the number of people to a minimum
when loading and connecting up. Idle people can be dangerous.
- Assign
duties to specific people
during loading and be sure they carry out those duties.
- Start
loading your shot
in such a manner that you could shoot in the event of equipment
failure.
- When
loading bulk explosives, a 1-ft. to 2-ft. column of bulk
explosives should be loaded prior to the primer.
- When
loading packaged explosives, load one stick prior to
the primer. This ensures that the primer is not driven into cuttings
at the bottom of the borehole.
- Be
certain that stemming is adequate.
Avoid using wet or muddy stemming material. Crushed stone is recommended.
- Always
clean the shot area of bags, wire, boxes, etc. prior
to the connecting up.
- Always
have adequate cover at the blasting point.
- Make
sure you understand the signal to fire the shot. If in
doubt, delay firing.
- Complete
your shot report before leaving the site.
- Evacuate
blast area when threatened with electrical storms.
- Always
use common sense!
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