EPA 609 Refrigerant Types & Properties

Question 1

What class of refrigerant is R-12 (Freon)?

Accepted Answer

CFC (Chlorofluorocarbon)

Answer

HFC (Hydrofluorocarbon)

Answer

HCFC (Hydrochlorofluorocarbon)

Answer

HFO (Hydrofluoroolefin)

Question 2

What class of refrigerant is R-134a?

Accepted Answer

HFC

Answer

CFC

Answer

HCFC

Answer

HFO

Question 3

What is the boiling point of R-134a at atmospheric pressure?

Accepted Answer

-26.3°F (-32.4°C)

Answer

32°F (0°C)

Answer

14°F (-10°C)

Answer

-40°F (-40°C)

Question 4

Which refrigerant is considered a 'blend' and is NOT approved for MVAC retrofit use by the EPA?

Accepted Answer

R-401A (MP39)

Answer

R-134a

Answer

R-1234yf

Answer

R-22

Question 5

What does a refrigerant's GWP (Global Warming Potential) measure?

Accepted Answer

How much heat the refrigerant traps in the atmosphere compared to CO2

Answer

How much the refrigerant depletes the ozone layer

Answer

The refrigerant's pressure at room temperature

Answer

The refrigerant's toxicity to humans

Question 6

R-134a has a GWP of approximately:

Accepted Answer

1,430

Answer

4

Answer

130

Answer

11,700