6.3 Aerosol characteristics
In accordance with DIN EN 13544-1 Appendix CC.
Determination of particle size
Parameter
Measurement time
3 min
Fill volume
3 ml
Test solution
Sodium fluoride (2.5%)
Test instrument
Marple cascade impactor
minimum flow
3 l/min.
maximum flow
6 l/min.
Result
3
0
10
20
30
40
50
60
70
80
90
100
1.00
10.00
C
u
m
u
la
ti
v
e
d
ru
g
d
e
p
o
s
iti
o
n
[
%
]
MMAD [µm]
Mean value at 3 l/min JetFlow
Mean value at 6 l/min JetFlow
3) Averages from each of two individual measurement series with three
nebuliser-compressed air combinations
– 66 –
