Cleanroom Terminology
01 December 2015

Cleanroom Terminology

As-build - A clean room that is complete and ready for operation, with all services connected and functional, but without production equipment or personnel in the room.

Operational - A term used to describe a clean room in normal operation with all services functioning and with production equipment and personnel present and performing their normal work functions.

Class - The term used to specify the clean room airborne particulate cleanliness level per FS209 as 1, 10, 100, 1,000, 10,000, and 100,000 (particles per cubic foot).