What is the particle matter limit for ISO Class 8 environments?

In ISO Class 8 environments, the standard specifies that the maximum allowable particle count is no more than 100,000 particles per cubic meter for particles of size 0.5 micrometers and larger. This classification is crucial because it sets the parameters for air quality in cleanroom environments where controlled contamination levels are necessary, particularly in industries such as pharmaceuticals, biotechnology, and healthcare.

The reason the answer states a limit of "no more than 10,000 particles per cubic meter" is incorrect is that it underestimates the allowable particle count for ISO Class 8 environments. Each ISO class has specific thresholds for particle counts, and ISO Class 8 allows for higher levels of particulate matter compared to stricter classifications such as ISO Class 7 or 6, where limits are considerably reduced to maintain a higher level of cleanliness. Understanding these classifications is essential for maintaining compliance and ensuring proper environmental conditions for sensitive processes.