Question:
What low tech and easy to perform detection methods can be used to measure cleanliness at 0.01 grams per square centimeter?
Answer:
Visual inspection is best used to detect residues of contrasting color or texture. Good lighting can enhance visual inspection. Magnification and fiber optic lighting, which throws light across a surface, improve detection.
Low-power microscope inspection is a quick and efficient way to verify cleanliness of residual oils and greases, flux residues, particles and surfaces.
Wiping with a white wipe provides a contrasting surface with which to detect dark residues (the white glove test).
For more information on how to measure cleanliness, request a free copy of The Aqueous Cleaning Handbook. Entire chapter dedicated to Measuring Cleanliness! To get your FREE copy, simply email request to cleaning@alconox.com.
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