{TAIL ~ Exemplary mixtures} contain dichlorodifluoromethane and from 35 to 50 percent chloropentafluoroethane, octafluoropropane or octafluorocyclobutane based on the mixtures of I and {HEAD ~ II} 
{ TAIL ~ Exemplary mixtures } contain dichlorodifluoromethane and from 35 to 50 percent chloropentafluoroethane , octafluoropropane or octafluorocyclobutane based on the mixtures of I and { HEAD ~ II }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD