| 摘要 |
<p>Disclosed herein are compositions containing: (A) a refrigerant component containing (1) at least one refrigerant having an OEL less than 400; and (2) a combination of refrigerants, each having an OEL greater than 400, containing (i) at least one compound selected from HFC-134a and HFC-134, and (ii) trans-HFO-1234ze, wherein the refrigerant component has an overall OEL of at least 400 and is non-flammable. The refrigerant mixtures are useful as components in compositions optionally also containing non-refrigerant components (e.g. lubricants), in methods to produce cooling, in methods for replacing refrigerant R-134a, and in refrigeration or air conditioning apparatus.</p> |
