I have a question on the nonviable particle monitoring for ISO Class 8 cleanrooms. The particle monitoring is done for both 0.5 and 5 microns but the new ISO 14644-1:2015 recommends using one channel, and heard that most companies are planning to monitor the cleanrooms at 0.5 microns only.
I still prefer the old way of monitoring at both 0.5 and 5 microns to have a good distribution of the particulate contaminants.
Can I know what is your practice - do you monitor only at 0.5 or 5 micron or both?
I still prefer the old way of monitoring at both 0.5 and 5 microns to have a good distribution of the particulate contaminants.
Can I know what is your practice - do you monitor only at 0.5 or 5 micron or both?