Compressed air quality to ISO 8573.1 : 2001 (E)
The International Standard for compressed air quality introduces a simple system of classification for the three main contaminants present in any compressed air system - DIRT, WATER and OIL.
To specify the quality class required for a particular application, simply list the class for each contaminant in turn.
For Example:
Compressed air to Quality Class: 2.2.2. (Dirt: 1 micron. Water: -40°C PDP. Oil: 0.1 mg/m3)
ISO8573.1 : 2001 (E)
| Quality Class |
Solid Particles maximum number of particles per m3 |
WATER Pressure Dewpoint °C (ppm. vol.) at 7 bar g |
OIL (Including vapour) mg/m3 |
||
|
0.1-0.5 micron |
0.5-1.0 micron |
1.0-5.0 micron |
|||
| 1 | 100 | 1 | 0 | -70 (0.3) | 0.01 |
| 2 | 100,000 | 1,000 | 10 | -40 (16) | 0.1 |
| 3 | - | 10,000 | 500 | -20 (128) | 1.0 |
| 4 | - | - | 1,000 | +3 (940) | 5 |
| 5 | - | - | 20,000 | +7 (1240) | - |
| 6 | - | - | - | +10 (1500) | - |