ISO
Quality
Class |
0.1-0.5
Micron |
0.5-1.0
Micron |
1.0-5.0
Micron |
Water-Pressure
Dewpoint (°F/°C) |
Oil (Including Vapor) |
| 1 |
100 |
1 |
— |
-100 |
-70 |
0.01 |
| 2 |
100,000 |
1,000 |
10 |
-40 |
-40 |
0.1 |
| 3 |
— |
10,000 |
500 |
-4 |
-20 |
1 |
| 4 |
— |
— |
1,000 |
37.4 |
3 |
5 |
| 5 |
— |
— |
20,000 |
44.6 |
7 |
— |
| 6 |
— |
— |
— |
50 |
10 |
— |
|
ISO 8573.1 AIR QUALITY CLASSES
Maintaining air quality is so important
that
the International Standards Organization
(ISO) developed six compressed air
quality
classes, as defined by ISO 8573.1 Testing
methodology established at 100°F inlet
temperature,
100°F ambient temperature, and 100
psig. |
