Crystal Clean 2734 - Comprehensive Risk Assessment; Risk Analysis and Corrective Actions

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ULTRASONIC CLEANING SYSTEMS ULTRASONIC CLEANING SYSTEMS
RISK ASSESMENT
This equipment has built-in ultrasound emitters inside the tanks. Ultrasound are acoustic waves whose frequency is
above the hearing capacity of the human ear (approximately 20,000 Hz). Ultrasonic cleaning is a method that uses ultrasounds
(generally 15-2000 kHz) and an appropriate cleaning solution. The ultrasonic frequency in this type of work is low.
The health effects of ultrasound, as included in the Technical Note of Prevention 205 are the following:
By contact: mainly manifested in the hands, in cleaning and degreasing operations. There is no such exposure, since the
transmission medium is aqueous, that is, the water acts as a shield, with which the transmission of ultrasounds is practically
non-existent.
By air: same as the previous point.
Every cleaning operation with this equipment is made with the lid closed, so there is no exposure to ultrasound.
In case of auditory discomfort it would be advisable to use adequate protection (plugs, etc.), although the noise
emission values are below the maximum admissible.
Risks that could not be eliminated are analyzed below:
CLASS SEVERITY (S)
1 Minor injuries. 3 Days maximum of sick leave. First aids.
2 Reversible damages. Between 3 and 30 days of sick leave.
3 Permanent damages. More than 30 days of sick leave.
4 Death. Permanent disability.
CLASS FREQUENCY (Fr)
2 Never / Almost never / More than 1 year
3 Rarely / More than two weeks and up to 1 year
4 Occasionally / More than 1 day and up to a week
5 Regularly / More than one hour and up to a day
6 Often / Less than one hour
CLASS PROBABILITY (Pr) Avoidable (Av)
1 Unlikely, not known or in any case Avoidable
2 Unlikely to occur
3 Posible Likely avoidable
4 Probable
5 Frequently Impossible to be avoided
N Grade (N1) Class
14-15 5 6-8
11-13 4 4-5
8-10 3 1-3
5-7 2
3-4 1
S Fr Pr Av N=Fr+Pr+Av N1 (P)
1 2 1 1 4 1 1
1 2 1 1 4 1 1
1 2 1 1 4 1 1
1 2 1 1 4 1 1
In the user manual it is indicated that the piece, once cleaned, is left in the basket until the liquid is drained.
Risk generated by the transfer of flammable liquids to the cleaning liquid. The users manual indicates that it is necessary to make sure that the part to
be cleaned is free of flammable liquids.
Risk assesment
Risk profile (P)=S+N1-1
High risk. Correction neded
Medium risk
Low risk
RISK DESCRIPTION. CORRECTIVE ACTION
Risk of thermal contact with hot parts of the machine, the cleaned part or the cleaning liquid. The risk is duly signposted on the machine at the exit of
the cleaning liquid and the use of heat protection gloves is indicated in the users manual.
Risk of contact with chemical products (cleaning fluid). In the users manual, is indicated that it should be considered the cleaning products safety data
sheets and the use of chemical protective gloves.