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讫今为止,在家用制冷器具中,还没有合适的能替代CFC_(12)的制冷剂。这种速冷剂,至少在压力、压缩比、无毒性和不可燃性这些方面能与CFC_(12)相类似。唯一相似的制冷剂估计将是H-FC134a和H-CFC_(22)。但尚有许多未确定的方面和缺点与它们应用的可能性有关,如速冷系统的重新设计也许是必需的。然而,由于家用器具中的制冷迴路是密封的,因此,也许不可燃性的要求会变为允许一定的可燃性。这样,替代物的范围可以考虑得稍微广一点,
Until now, there is no suitable alternative to CFC_ (12) in domestic refrigeration appliances. This cryogen, similar to CFC_ (12), at least in terms of pressure, compression ratio, non-toxicity and non-flammability. The only similar refrigerant estimates would be H-FC134a and H-CFC_ (22). However, there are many unidentified aspects and disadvantages related to the possibilities of their application, such as the redesign of rapid cooling systems may be necessary. However, since the refrigeration circuit in household appliances is hermetically sealed, perhaps the requirement of non-flammability may become such as to allow some flammability. In this way, the range of alternatives can be considered a little wider,