Starting Off with a Clean Slate

摘要

Measurement of surface wetting tensions using dyne liquids is unquestionably one of the easiest and most cost-effective means of assessing surface cleanliness. For process control or troubleshooting, it is more than sufficiently accurate and reproducible. In considering the basic principles of these techniques, it is true there are some aspects that might cause concern, and these have been noted. However, two points should be noted. First, because one can indicate a possible weakness in a method is not to say this actually manifests itself in practice. Second, almost all of the possible reservations noted earlier apply equally to all the other wetting test methods for cleanliness, such as the sessile drop. A much expanded version of this is available from Finishing Publications Ltd. (finpubs@compuserve.com).