What is the primary safety concern when working with

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19-8) What is the primary safety concern when working with R-410A?
19-9) Define the term “glide” when referring to zeotropic refrigerants.
19-10) Explain the ASHRAE refrigerant safety designation regarding refrigerants toxicity and flammability.
19-11) What is the difference between a disposable refrigerant cylinder and a refillable refrigerant cylinder?
19-12) What is the difference between a compound and a zoetrope?
19-13) What is the difference between a zoetrope and an azeotrope?
19-14) What contaminants can be found in refrigerant?
19-15) State two reasons ammonia has limited use.
19-16) What refrigerant is being used in small appliances in place of R-12?
19-17) What refrigerant is being used in new air conditioning systems in place of R-22?
19-18) When working with ammonia, what safety equipment must be available?
19-19) How can the presence of non-condensables be detected in a refrigerant cylinder?
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