The cleanliness quality that can be achieved in a preassembled product is determined by the interaction of numerous factors within the process chain. According to the VDA 19.2 guidelines "Technical cleanliness in assembly - Environment, Logistics, Personnel and Assembly Equipment", these influencing factors include the environment, logistics, personnel and the assembly equipment. This guideline is the basis for the following elaborations on particle monitoring.
The cleanliness quality can also be impaired by particle contamination during assembly. In many cleanliness-critical sectors therefore, the components must be protected during production from the entry of critical impurities from the environment.
By means of particle monitoring, the cleanliness of the components can be determined and improved during assembly, or compliance with the cleanliness requirements can be ensured. Particle monitoring can be implemented using different measuring methods. All of them have the aim of locating critical particle sources.