Checking Technical Cleanliness using the PartSense+ 4.0 Surface Particle counter

The standard VDA 19, known from the automotive industry, and the ZVEI “Guidelines for Technical Cleanliness in Electrical Engineering” developed from it is a helpful tool for assessing technical cleanliness. PMT (GB) Ltd are receiving more and more inquiries about how to detect particles smaller than 50μm.

The glancing light technology mentioned in ISO 14644-9 has proven successful. Light is illuminated almost parallel to the surface. Light is reflected and scattered at every elevation. Even
particles a few micrometres in size can be reliably detected. The measuring principle is used in practice in the “PartSens 4.0” instrument from PMT (GB) Ltd.

Please read the full paper below.

Technical Cleanliness

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