01266nam 2200361Ia 450 991069791890332120090126101037.0(CKB)5470000002393807(OCoLC)299511618(EXLCZ)99547000000239380720090126d2006 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierWhat technicians and contractors need to know about phasing out HCFC refrigerants to protect the ozone layer[electronic resource]Washington, D.C. :U.S. Environmental Protection Agency,[2006?]2 pages digital, PDF fileTitle from title screen (viewed on Jan. 23, 2009).RefrigerantsChlorofluorocarbonsOzone-depleting substancesRefrigerants.Chlorofluorocarbons.Ozone-depleting substances.United States.Environmental Protection Agency.GPOGPOBOOK9910697918903321What technicians and contractors need to know about phasing out HCFC refrigerants to protect the ozone layer3103731UNINA