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Test Report
on emissions from Powerclean Spray Gun Cleaners
Table 3 - Solvent concentrations measured during the operation of a Unic Powerclean Automatic Spray
Gun Cleaning Machines.
Solvent
Acetone
Propan - 2 - OL
Propyl Acetate
Butyl Acetate
Xylene
Toluene
White Spirit
% of mixed exposure
limit *b
*a
This monitoring position was outside the operator's breathing zone. Measurements were taken
to establish the effectiveness of the ventilated enclosure.
*b
Exposure limits are generally for single compounds. Where there is reason to believe that
effects are additive a mixed exposure is assessed using the formula: C1/L1+ C2/L2...< 1
where C1 etc. are the measured concentrations and L1 etc are the corresponding exposure
limits.
Short Term
Exposure Limit
Ref: EH 40 1992
10cm above the
unit during normal
Ventilation off.
1500 ppm
Less than limit of
(10 min. TWA)
detection
500 ppm
Less than limit of
(10 min. TWA)
detection
250 ppm
Less than limit of
(10 min. TWA)
detection
200 ppm
Less than limit of
(10 min. TWA)
detection
150 ppm
Less than limit of
(10 min. TWA)
detection
150 ppm
3ppm
(10 min. TWA)
720mg/m3
30mg/m3
(10 min. TWA)
100%
6%
(10 min. TWA)
Monitoring
Monitoring
Position 1
Position 2
10cm above the
unit when the cycle
operation.
had finished.
Lid closed.
Lid open.
Ventilation on.
50ppm
Less than limit of
detection
Less than limit of
detection
30ppm
20ppm
10ppm
75mg/m3
49%
Monitoring
Position 3
*a
inside the enclosure
when the cycle had
finished.
Lid open.
Ventilation on.
50ppm
Not measured
Not measured
10ppm
150ppm
60ppm
100mg/m3
156%
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