Patent ID: 8207508

Claim:
A device for quantifying a surface's cleanliness relative to at least one contaminant, comprising: a source of interrogating radiation to which the at least one contaminant on a surface is responsive; a means for directing the interrogating radiation toward a nonmetallic article, the nonmetallic article having the surface or comprising a surface cleaner that may hold the at least one surface contaminant from the surface; a detector positioned to detect radiation from the nonmetallic article produced in a fluorescent and/or phosphorescent manner in response to the interrogating radiation by the at least one contaminant, and adapted to generate a signal that corresponds to the detected radiation; an analyzer for quantifying the surface's cleanliness, the analyzer constructed to compare the signal relative to an electronic standard that corresponds to the surface being in an acceptably clean state for exposure to a chemically reactive environment and/or for application of an adhesive for bonding to another article.