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Description / Abstract:
Introduction and Objectives
Chlorofluorocarbons (CFCs) have been used by the electronics
industry for many years. CFC-113 and it's azeotropes/blends have
been the solvent of choice because of their stability, relatively
low toxicity, and their ability to remove contamination with little
or no post-cleaning deposition of residues. Although eight
chemicals are controlled by the Montreal Protocol, CFC-113 is the
chemical that has the greatest impact on the electronics industry.
In 1986, the cleaning of printed wiring assemblies (PWAs) accounted
for the consumption of approximately 35% of the total 150 million
pounds of CFC-113 produced in the United States.