这是一本关于EPA 608认证考试的学习指南,内容包括Ozone Depletion,Clean Air Act,Montreal Protocol,Refrigerant Oils,Refrigerant Blends,Refrigeration Process,General Service & Maintenance,The Three Rs,Recovery Techniques,Dehydration Evacuation,General Safety,Refrigerant Cylinders,Refrigerant Cylinder Shipping,Type I,Type II,Type III等