An EU directive bans the use of fluorinated greenhouse gases with global warming potential exceeding 150 for mobile air conditioning systems in motor vehicles since January 2011. Thus the current refrigerant tetrafluoroethane (R134a) has to be replaced. Tests in laboratory and car showed that the new refrigerant 1234yf selected by car industry can lead to fires. read more
Refrigerant 1234yf ignited in laboratory test: release of 46 g of 1234yf in 70 seconds with formation of hydrogen fluoride (HF) in concentrations above 90 ppmv
