With the passing of the Montreal Protocol and growing concern over the deploetion of the ozone layer, increased attentional ahs been foused on chlorofluorocarbons (CFCs) and other ozoner depleting subtances (ODSs). Industry has ong relied on these substances to manufacture products and service customers' needs. Research and testing of other chemicals has intensified since the passing of these regulations in order to find acceptable substitutes that will meet the specific needs of industry and yet will not be detrimental to the environment.
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