Daily Archives: January 17, 2011

All those opposed…


Back in November, the U.S. Environmental Protection Agency (EPA) issued a significant new use rule, or SNUR, recognizing a new use for the chemical we know (or will know) as HFO-1234yf. The SNUR specifies that the substance must only be used as a refrigerant in new motor vehicles, and that any other use must first be approved by the EPA. Since the agency also stated that it believed the new refrigerant “may be hazardous to human health,” the SNUR also imposed some limitations on purchase and transport of the gas.

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