HFO and HFO/HFC blends

"Low GWP" refrigerants and blends (status as of 09.2020)
①: flammable
②: Due to the large number of different HFO/HFC blends and the potential changes in development products, the above list contains as alternatives for R134a and R404A/R507A only non-flammable blends of GWP approx. 600 (R134a) and GWP < 1500 (R404A/R507A).
For an extensive discussion of HFO/HFC blends: "Low GWP" HFOs and HFO/HFC blends as alternatives to HFCs. Further alternatives are also dealt with.
Current Refrigerants	Alternatives
	ASHRAE Classification	Trade Name		Composition (with blends)	Detailed Information
R134a	R1234yf①	various		-	"Low GWP" HFOs and HFO/HFC blends as alternatives to HFCs
	R1234ze(E)①	various		-
	R450A	Solstice^® N-13	Honeywell	R1234ze(E)/ 134a
	R456A	AC5X	Koura (Mexichem)	R32/1234ze(E)/134a
	R513A	Opteon^TM XP10 R513	Chemours Daikin Chemical	R1234yf/134a
	R516A	ARM-42	Arkema	R1234yf/152a/ 134a
R404A/R507A② (R22/R407C②)	R448A	Solstice^® N-40	Honeywell	R32/125/1234yf/ 1234ze(E)/134a	"Low GWP" HFOs and HFO/HFC blends as alternatives to HFCs
	R449A	Opteon^TM XP40 Forane^® 449	Chemours Arkema	R32/125/1234yf/ 134a
	R449C	Opteon^TM XP20	Chemours	R32/125/1234yf/ 134a
R410A②	R32①	verschiedene		-	"Low GWP" HFOs and HFO/HFC blends as alternatives to HFCs
	R452B①	Opteon^TM XL55 Solstice^® L-41y	Chemours Honeywell	R32/125/ 1234yf
	R454B①	Opteon^TM XL41	Chemours	R32/1234yf