Cleanliness Basics.
There are usually three types of standard cleanliness requirements:
1. Gravimetry
The total weight of the particles can characterize the cleanliness of the parts
2. Microscopy
The size, material and number of particles, classified in specific sizes will define specific cleanliness levels. Most automotive OEM’s use this or a similar method of a base for their individual specification
3. Surface Tension
The DYNE specification measures the surface tension on part surfaces, primarily prior to and after surface treatment processes. The higher the number, the better the result.
Throughout our inhouse cleaning laboratory, cleaning results can be verified, and reports will be made available for our customers.
The basis for all inspections of technical cleanliness is regulated in the VDA 19, the Association of the German Automotive industry.