Iso clean room classifications are rated according to how much of a particulate of a specific size exists per cubic meter within a given enclosure see second chart.
Iso class 8 clean room temperature.
By comparison a typical office space would be 5 10 times more dirty.
Iso 8 is the least clean cleanroom classification.
The equivalent fed standard is class 100 000 or 100 000 particles per cubic foot.
The lower the iso class the more stringent the requirements for keeping particles and contamination to the acceptable levels of the room class.
Clean room classification iso class.
This means that in most facilities the cleanrooms air handling units ahu consume over 60 of all the site power.
Iso 16644 1 air cleanliness classes for cleanrooms and clean zones iso classification si english former fed std 209e iso class 3 m 1 5 1 iso class 4 m 2 5 10 iso class 5 m 3 5 100 iso class 6 m 4 5 1 000 iso class 7 m 5 5 10 000 iso class 8 m 6 5 100 000 the required standard of cleanliness of a room is dependent on the task.
As a general rule of thumb the cleaner the cleanroom needs to be the more air it will need to use.
Clean rooms need a lot of air and usually at a controlled temperature and humidity.
In reality however you can reach an iso 6 clean room with 1 recommendation is 2 airlock.
A cleanroom must have less than 35 200 000 particles 0 5 micron per cubic meter and 20 hepa filtered air changes per hour.