Class 1000 Cleanroom is the fourth classification type of the FED-STD-209 classification standard, the Class 1000 Cleanroom corresponds to the Class 6 Cleanroom of the ISO standard.
The maximum allowable particles for particles for a Class 1000 Cleanroom are below:
0.5 µm : 1000 per cubic foot
5 µm : 7 per cubic foot
Other requirements for Class 1000 Cleanroom Classification include :
- Rasied floors installed at optimal
- Purification of external air with HEPA filters
- Installation of gasketed ceiling grid
- Minimum of 120 to 150 air changes per hour
