IEST RP-CC018.4 PDF Download


Cleanroom Housekeeping – Operating and Monitoring Procedures
Recommended Practice by Institute of Environmental Sciences and Technology, 07/01/2007

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REPLACED 5/1/2020 by IEST RP-CC018.5: Cleanroom Cleaning and Sanitization: Operating and Monitoring Procedures

This document is no longer being maintained as an IEST Recommended Practice and is for historical reference only. It may contain outdated material and has been superseded by a new version or another Recommended Practice.


IEST RP-CC018.4 provides guidance for maintaining a cleanroom at the level for which it was designed. It is intended as a guide for establishing appropriate housekeeping procedures essential for the overall contamination control program of the cleanroom. Test procedures are provided for use in establishing the frequency of housekeeping, monitoring the effectiveness of the housekeeping, and helping to determine appropriate levels of surface cleanliness for specific cleanrooms. Incorporated in the RP is a new surface cleaning efficiency test method for nonviable particles that provides an automated measurement of surface cleanliness as it pertains to the efficiency of a wiping material to remove liquid contaminants from a surface.

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