METHOD AND DEVICE FOR QUANTIFYING SURFACE PARTICULATE CONTAMINANTS BY IMPROVED ANALYSIS

摘要

The invention relates to a method for quantifying particulate contaminants with an improved reliability and for detecting all particle sizes according to standard ISO 14644-9. According to the invention, the method comprises carrying out a blowing-suction on a sampled surface S', and a combination of analyses by the optical counting of the sucked particulate contaminants having a unit size lower than a value X2 and by a digital computation between two digital pictures of the surface S' taken respectively before and after the blowing-suction for quantifying the particles having a unit size higher than a value X1.