Emerson Climate Technologies, Sidney, Ohio, says it will help customers design, develop and test refrigerants approved by the U.S. Environmental Protection Agency.

The EPA’s Significant New Alternatives Policy is responsible for evaluating substitute chemicals and technologies for ozone-depleting substances. In December, 2011, the EPA approved R290 (propane), R600a (isobutane) and R441a for use in commercial and residential refrigerators and freezers. The primary benefits of these substitute refrigerants are reduction of direct global warming potential, improvement in equipment energy efficiency to reduce CO2emissions generated during electricity production, reduction in electricity demand, reduction in related facility operating costs, and employment of renewable refrigerant gases that are byproducts of various processes.