|
|
AIR QUALITY STANDARDS
ISO8573-1
(2001) - Compressed Air
Standards
The following table shows all of the classes
within ISO8573-1 (2001). To choose which class meets your requirements, assess what
dewpoint you need, the permissible remaining levels of oil and remaining dirt
particles.
ISO8573-1 (2001) Class 1-4-1 for example would be a refrigeration dryer with
a high quality coalescing filter.
|
QualityClass
|
Particle Size in Microns
|
Pressure Dewpoint
|
Oil Content
|
Recommended dryer to meet ISO Standard
|
|
0
|
0.1
|
-70°C
|
More
stringent than Class 1
|
Desiccant
|
|
1
|
0.1
|
-70°C
|
0.01 Mg/m³
|
Desiccant
|
|
2
|
1
|
-40°C
|
0.01 Mg/m³
|
Desiccant or membrane
|
|
3
|
5
|
-20°C
|
1 Mg/m³
|
Desiccant or membrane
|
|
4
|
15
|
+ 3 °C
|
5 Mg/m³
|
Refrigerated or membrane
|
|
5
|
40
|
+ 7 °C
|
25 Mg/m³
|
High Inlet Temp. Dryer
|
|
6
|
-
|
+ 10 °C
|
-
|
High Inlet Temp. Dryer
|
|
