Aqueous and Semi-Aqueous Alternatives
This manual has been developed jointly by the International Cooperative for Environmental Leadership (ICEL) (formerly the International Cooperative for Ozone Layer Protection (ICOLP)) and the U.S. Environmental Protection Agency (EPA) to aid the phaseout of ozone-depleting substances (ODSs) in printed circuit board (PCB) cleaning applications. It will prove useful to manufacturers world-wide because the procedures used to clean PCB assemblies apply to all manufacturers, regardless of location or size. The manual has been prepared by the U.S. EPA and an international committee of experts from the solvent cleaning industry. Committee members represent both developed and developing countries.
The manual describes a step-by-step approach for characterizing the use of ozone-depleting solvents and identifying and evaluating alternatives. It is a "howto" document which describes all of the steps necessary to successfully phase out the use of CFC-113 and methyl chloroform (MCF) in PCB cleaning applications. Many of the alternatives described are currently in use at major companies around the world. The manual addresses primary cleaning applications and gives brief descriptions of the commercially available aqueous and semi-aqueous alternatives to CFC-113 and MCF. The manual provides sufficient technical information on the solvent alternatives to enable users to gather more detailed information on their alternatives of choice. A list of equipment and materials vendors is provided to facilitate such further research.