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.
*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.
Solvent
Acetone
1500 ppm
Less than limit of
50ppm
50ppm
(10 min. TWA)
detection
Propan - 2 - OL
500 ppm
Less than limit of
Less than limit of
Not measured
(10 min. TWA)
detection
detection
Propyl Acetate
250 ppm
Less than limit of
Less than limit of
Not measured
(10 min. TWA)
detection
detection
Butyl Acetate
200 ppm
Less than limit of
30ppm
10ppm
(10 min. TWA)
detection
Xylene
150 ppm
Less than limit of
20ppm
150ppm
(10 min. TWA)
detection
Toluene
150 ppm
3ppm
10ppm
60ppm
(10 min. TWA)
White Spirit
720mg/m3
30mg/m3
75mg/m3
100mg/m3
(10 min. TWA)
% of mixed exposure
100%
6%
49%
156%
limit *b
(10 min. TWA)
Short Term
Exposure Limit
Ref: EH 40 1992
Monitoring
Position 1
10cm above the
unit during normal
operation.
Lid closed.
Ventilation off.
Monitoring
Position 2
10cm above the
unit when the cycle
had finished.
Lid open.
Ventilation on.
Monitoring
Position 3
*a
inside the enclosure
when the cycle had
finished.
Lid open.
Ventilation on.
