Test methods for wipes have been designed by institutions, manufacturers and end users; however, the most commonly used, current, internationally recognised standard test methods are those of the Institute of Environmental Sciences and Technology (IEST): IEST-RP-CC004: Evaluating Wiping Materials Used In Cleanrooms and Other Controlled Environments.2
Comparing wipes from different sources is an inexact science due to the variability between different test methods and testing equipment. The test methods for particles and fibres often vary considerably and the results even more so. The test for residues and ionic contaminants are more established and repeatable. However, the only way to truly compare results for different wipes is if they have been tested to the same test method by the same laboratory.
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