Laser Cutter/Risk Assessment Laser Cutter (Blue)

Risk Assessment

Company Name Manchester Hackspace
Assessment Completed by Chris Hilliard
Date 28-July-2015
Activity or area being assessed (40W CO2 A4) - Shenhui K40-III (modified)
Location Workshop

Who might be affected

Operator X
Other Members X
Visitors/Public X
Others (please describe)

Hazards

Hazard Type Description of Hazard Initial Risk Action Required Final Risk
Severity Probability Rating Severity Probability Rating
Fumes Fumes generated due to inappropriate material use 3 4 12 Extractor fan, venting outside building.

Standard list of known materials to be drawn up, and further materials added after checking the material data sheet where possible. Machine only to be operated by competent persons.

2 3 6
Smoke Smoke particulates created during operation 4 2 8 Extractor fan, venting outside building.

List of permitted materials to be drawn up Machine only to be operated by competent persons Extractor to be left running until unit is clear before opening lid

4 1 4
Fire (electrical) Due to electrical failure 2 5 10 Machine not to be left unsupervised

Machine to be taken out of use if damaged Machine to be visually inspected before use Appropriate fire extinguisher to be available at all times

1 2 2
Fire (material) Due to improper material use 3 5 15 List of permitted materials to be drawn up

Machine only to be operated by competent persons Machine not to be left unsupervised Appropriate fire extinguisher to be available at all times

2 2 4
Burns personal injury in the form of burns due to the laser's beam 3 4 12 Enclosure integrity to be checked before use

Machine only to be operated by competent persons

1 4 4
Electric Shock Electric shock personal injury and resultant injury - burns and tissue damage. 2 5 10 Machine to be taken out of use if damaged

Machine to be visually inspected before use

1 2 2
Blindness/Eye Injury Blindness/Eye Injury due to laser beam or reflections 3 4 12 Enclosure integrity to be checked before use

Machine only to be operated by competent persons Reflective materials not to be placed within enclosure

1 4 4

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PPE Requirements

Head Protection Eye Protection Ear Protection Respiration Protection Hand Protection High Visibility Safety Harness
Not required Not required Not required Not required Not required Not required Not required

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Additional Notes

Any member who wishes to use the equipment must be trained in its safe operation by the Laser Team, and supervised until competent. The findings of this risk assessment should be explained to the member. Any hazards discovered during use of the equipment should be investigated and this Risk Assessment updated if necessary.

Reference source: RapMan Australia

Guide to the risk matrix points system

Hazard severity Points rating Definition
Nil 1 Very minor injury, bruise, graze, no risk of disease.
Slight 2 Minor injury, which would allow the individual to continue work after first aid treatment on site or at a local surgery. The duration of the stoppage or treatment is such that the normal flow of work is not seriously interrupted.
Moderate 3 Temporary disability causing injury or disease capable of keeping an individual off work for three days or more and reportable under RIDDOR
High 4 Causing death, serious injury or permanent disability to an individual.
Very high 5 Causing multiple deaths and widespread destruction eg. fire, building collapse.
Hazard probability Points Rating Definition
Remote possibility 1 There is really no risk present. Only under freak conditions could there be any possibility of an accident or illness. All reasonable precautions have been taken - This should be the normal state of the workplace.
Unlikely 2 This incident or illness might occur but the probability is low and the risk minimal.
Possible 3 The accident may occur if additional factors precipitate it, but it is unlikely to happen without them.
Highly likely 4 Will happen more often than not. Additional factors could precipitate an incident but it is still likely to happen without this additional factor.
Inevitable 5 If the work continues as it is, there is almost 100% certainty that an accident will happen, for example:

• A broken stair or broken rung on a ladder • Bare, exposed electrical conductors • Unstable stacks of heavy boxes

Risk Rating Definitions
Score Definition Action
1 to 4 Low No action required
5 to 9 Moderate Reduce risks if reasonably practicable
10 to 15 High Risk Priority action to be undertaken
16 to 25 Unacceptable Action must be taken IMMEDIATELY
Points System
1 Nil 2 Slight 3 Moderate 4 High 5 Very High
1 Remote L L L L M
2 Unlikely L L M M H
3 Possible L M M H H
4 Highly Likely L M H U U
5 Ineveitable M H H U U