Surface Ultraviolet (UV) Fluorescence—Many organic and some inorganic contaminants will fluoresce under UV light. Shining a UV light on the surface makes residues more visible, particularly in a slightly darkened or dark room. The higher the intensity of the light used, the lower the level of contaminants easily detected. Note, however, that the typical black light found in novelty or specialty gift stores may not be strong enough to cause much residue to fluoresce. More powerful UV lights, available from scientific supply houses or industrial suppliers, will provide far better results. The test is performed by shining the light on the surface and observing an easily seen, fluorescent—typically a yellow, orange or green, sometimes red—color which glows under the light.
Contact Alconox technical support for selecting the right aqueous critical cleaner!
Alconox, Inc manufactures a range of aqueous critical cleaners from powder to liquid, acid to alkaline, highly emulsifying to low foaming. GMP compliant brands are available globally. Downloadable certificates of analysis (COA), MSDS, technical bulletins and trace analysis from the Alconox website at www.alconox.com