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User Manual // Simpro MegaDumper®
Original Instructions // English // v86.0 // February 2022 // Page
18
As with all powered industrial equipment, some hazards will remain despite any
precautions undertaken by the manufacturer or owner of the machine. It is essential that
operators are aware of these residual hazards and what they must do to prevent harm to
themselves or to others, as set out in
§3.3.3 .
The ISO12100 risk assessment model
In the ISO12100 risk assessment model, each identified hazard is given a Risk Factor , from
which is derived a Risk Evaluation . These parameters are assessed as follows.
3.3.1.1 Determining the Risk Factor
The Risk Factor associated with any given hazard may be calculated from the following
table, using the formula:
Risk Factor = LO x FE x DPH x NP
3.3.1.2 Determining the Risk Evaluation
Once the Risk Factor has been calculated, the Risk Evaluation of the hazard can be
determined from the following table:
Risks evaluated as Very High, Extreme or Unacceptable are likely to require additional or
uprated safety functions, as set out in
§3.4 . These must be specified at the time of order.
LO
Likelihood of
Occurrence
FE
Frequency
of Exposure
DPH
Degree of
Possible Harm
NP
Number of
Persons at risk
0.1
Impossible, or
possible only in
extreme
circumstances
0.1 Infrequently 0.1
Scratch or
bruise
1 1 – 2 persons
0.5
Highly unlikely
though
conceivable
0.2 Annually 0.5
Laceration,
mild ill-health
2 3 – 7 persons
1
Unlikely but
could occur
1 Monthly 1
Break minor
bone or illness
(temporary)
4 8 – 15 persons
2
Possible but
unusual
1.5 Weekly 2
Break major
bone or illness
(permanent)
8
16 – 50
persons
5
Even chance –
could happen
2.5 Daily 4
Loss of 1 limb or
eye/serious
illness
(temporary)
12
51 or more
persons
8
Probable – not
surprised
4 Hourly 8
Loss of 2 limbs
or eyes/serious
illness
(permanent)
- -
10
Likely, only to be
expected
5 Constantly 15 Fatality - -
15
Certain, no
doubt
- - - - - -
Risk Factor 0-1 2-5 6-10 11-50 51-100 101-500 501-1000 1001 +
Evaluation Negligible
Very
Low
Low Significant High
Very
High
Extreme
Unaccept
able