Section 01 Alternatives to HCFCs in the Refrigeration and Air Conditioning Sector 56 ‘In cocold stostostoreses, HCFCs hashas been extensitensitensitensitensively usedusedusedused in some mamarketskets, whereaseaseas ammoniaammoniaammoniaammoniaammoniaammoniaammonia hahave remainedemainedemainedemainedemainedemainedemained a prefeefeeferreded alteternatinatinatinative inin otheothers’