| http://www.w3.org/ns/prov#value | - Refrigerants which utilize a chlorofluorocarbon (CFC), such as refrigerants R12 and R502, are being phased out, and replaced by refrigerants which are more environmentally friendly, such as R404A. While the newer refrigerants have the advantage of not utilizing chemicals which are suspected of having a depleting effect on stratospheric ozone (O3), the newer refrigerants have different operating ch
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