An 'R number' identifies what sort of substance having potentially significant impact on global warming when used in heating/cooling applications?
Refrigerant R-401A Refrigerants R404a Refrigerent R-401 R-409A R-507A ISCEON Refrigerant gas Refregerant R407c R-404a MO99 Ice substitute
r 409a r404a isceon r 401 r 507a mo99 refrigerant gas refrigerent r407c ice substitute r 401a refregerant refrigerants refrigerant r 404a
refrigerant
WikipediaEntity
Refrigerant