... .DOT,CE approved4.Air conditioning freonR410aRefigerant R410a ,refrigerant gas R410aa mixed refrigerant gas ,and it is a best replacement for refrigerant R-22 ... stenchLiquid Density,g/cm31.308 R410aRefigerant R410a ,refrigerant gas R410aa mixed refrigerant gas ,and it is a best replacement for refrigerant R-22 ...