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کامپیوتر و شبکه::
آلودگی مولکولی سطحی
The third step is sorption on the sensitive surface, which can be quantified as a surface molecular contamination (SMC).
This part of ISO 14644 does not give a classification of surface molecular contamination.
surface molecular contamination SMC
In some cases, where no direct measurement of the AMC is possible (e.g. in a volume too small), measurements of the surface molecular contamination (SMC) are the only possible way of characterizing the degree of contamination.
NOTE The relation between SMC (expressed in concentration/unit of area) and AMC (expressed in concentration/unit of volume of air) is generally not known.
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