EPA 608 609 Refrigerant Cylinder Safety and Storage

Question 1

What is the ASHRAE-assigned cylinder color for R-22 refrigerant?

Accepted Answer

Light Green

Answer

ASHRAE Standard 34 assigns light green as the identifying color for R-22 refrigerant cylinders.

Question 2

What color designates R-410A refrigerant cylinders under ASHRAE standards?

Accepted Answer

Rose/Pink

Answer

ASHRAE Standard 34 assigns rose/pink as the identifying color for R-410A refrigerant cylinders.

Question 3

Which cylinder color identifies R-134a refrigerant?

Accepted Answer

Light Blue

Answer

ASHRAE Standard 34 designates light blue (sky blue) as the color for R-134a refrigerant cylinders.

Question 4

What does a gray cylinder with a yellow top indicate when found in the field?

Accepted Answer

A recovered or mixed refrigerant

Answer

EPA regulations require that recovered or mixed refrigerants be stored in cylinders painted gray with a yellow top to prevent accidental reuse.

Question 5

What maximum fill level by weight is allowed for refrigerant recovery cylinders?

Accepted Answer

80%

Answer

DOT regulations prohibit filling refrigerant cylinders above 80% of their rated capacity by weight to allow for thermal expansion.

EPA 608 609 Practice Test