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WebCommercial Refrigeration Refrigeration Controls Filter Driers & System Protectors Filter Driers & System Protectors for Refrigeration Emerson’s full line of system protectors keeps systems running at peak efficiency by providing superior protection against moisture and contaminants. Choose Emerson. Install confidence. WebHCFC-22 according to the 2011 WMO Scientific Assessment of Ozone Depletion is 1790 ± 630, i.e. between 1160 and 2420). Table 1 (overleaf) provides some sample GWP values. Examples of CFC-12, HCFC-22 and HFC-134a have been selected to illustrate the progression in knowledge over time leading to the updating of the GWP values. WebHCFC-22 measured by the Advanced Global Atmospheric Gases Experiment ( AGAGE) in the lower atmosphere ( troposphere) at stations around the world. Abundances are given as pollution free monthly mean mole fractions in parts-per-trillion . Growth of R-22 (CFC-22) abundance in earth's atmosphere since year 1992. [5] giraffe full body