Some cleanroom industries rely on a subjective, aesthetic evaluation of the cleanroom garment or number of launder cycles for replacement. Most cleanroom garment laundries have validated their processes for at least 100 launder cycles for the cleanroom garments they supply to the cleanroom industry. However, I recommend an objective testing of the cleanroom garment and fabric as well as establishing the efficacy of particle entrapment, the lack of particle shedding, and ESD efficacy as the criteria for replacement. Since 2003, the IEST-recommended practice IEST-RP0CC003.3 has recommended specifications for clean-room fabrics, garment design, garment laundering, and testing of the cleanroom garments over time. The integrity and durability of cleanroom fabrics and design of clean-room garments have significantly improved in the last ten years. The laundering and testing of the cleanroom garments has been standardized. The modified Ford Peterson method should be used to test bacterial filtration efficiency. This article is linked through the Controlled environments website and was published in November 2008 Click Here For Complete Article Text
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