7.2 Aerosol characteristics according to
ISO 27427
The aerosol characteristics presented in these instructions for
use were determined in accordance with ISO 27427 using Sal-
butamol. If other solutions or suspensions are used for
nebulisation, the aerosol characteristics may differ from the val-
ues shown (particularly if they have greater viscosity).
The following data is based on tests according to a standard
which takes adult breathing patterns as a basis. Therefore,
these figures will probably differ from corresponding figures
that were calculated for populations of children and infants.
Nozzle insert
(blue)
7
MMAD [µm]
8
GSD
Respirable fraction
[% < 5 µm]
Aerosol fraction
[% < 2 µm]
Aerosol fraction
[% > 2 µm < 5 µm]
Aerosol fraction
[% > 5 µm]
Aerosol output [ml] 0.35
Aerosol output rate
[ml/min]
6) Operation with PARI BOY compressor (Type 130).
7) MMAD = Mass Median Aerodynamic Diameter
8) GSD = Geometric Standard Deviation
– 37 –
Minimum
compressor
flow
(3 l/min –
0.6 bar)
4.7
2.19
52.3
13.3
39.0
47.7
0.07
Nominal
compressor
flow
(5 l/min –
6
1.6 bar)
3.8
2.24
61.9
22.1
39.8
38.1
0.41
0.16
Maximum
compressor
flow
(6 l/min –
1.9 bar)
3.3
2.70
60.5
29.4
31.2
39.5
0.38
0.18