Cleanroom: A room in which the concentration of airborne particles is controlled to specified limits (Federal Standards 209E).free LogoManager 1.4
Federal Standard 209E: The document that establishes standards classes or air cleanliness for airborne particulate levels in clean rooms and clean zones. It prescribes methods for class verification and monitoring of air verification and monitoring air cleanliness. It also addresses certain other factors, but only as the affect control of airborne particulate contamination.free LogoManager 1.4
Class 100,000 Cleanroom: Count of particles which are 0.5 micron, or larger, not to exceed 100,000 particles per 10,000 cubic foot.free LogoManager 1.4