How Pure is Distilled Water?

Distilled water has many uses in everyday life, for example as coolant in cars or in steam irons. It has the reputation of being purer than tap water, which is why distilled water is also used for cleanliness analysis in the laboratory. Residues in the water would contaminate the samples during analysis and distort the results.

Filmic Pollution Decoded

The smallest contamination, not visible to the naked eye, leads to errors in the processing of components. One of our customers had this experience when coating a turned part: an unknown filmic contamination that was discovered on the component after washing hindered the coating process. Our laboratory team examined the contamination using Raman spectroscopy.