EPA 608 609 Refrigerant Cylinder Safety and Storage 1 — Questions and Answers
Question 1: What is the ASHRAE-assigned cylinder color for R-22 refrigerant?
- Rose/Pink
- Light Green (Correct answer)
- Light Blue
- Orange
Correct answer: Light Green
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?
- Light Green
- Orange
- Light Blue
- Rose/Pink (Correct answer)
Correct answer: Rose/Pink
ASHRAE Standard 34 assigns rose/pink as the identifying color for R-410A refrigerant cylinders.
Question 3: Which cylinder color identifies R-134a refrigerant?
- Light Blue (Correct answer)
- White
- Yellow
- Light Green
Correct answer: Light Blue
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?
- R-22 refrigerant
- R-410A refrigerant
- A recovered or mixed refrigerant (Correct answer)
- R-11 refrigerant
Correct answer: A recovered or mixed refrigerant
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?
- 60%
- 70%
- 80% (Correct answer)
- 90%
Correct answer: 80%
DOT regulations prohibit filling refrigerant cylinders above 80% of their rated capacity by weight to allow for thermal expansion.
Question 6: Which organization establishes the color-coding standard for refrigerant cylinders?
- EPA
- ASHRAE (Correct answer)
- DOT
- OSHA
Correct answer: ASHRAE
ASHRAE Standard 34 establishes the color-coding system used to identify refrigerants by cylinder color.
EPA 608 609 Refrigerant Cylinder Safety and Storage 1
What is the ASHRAE-assigned cylinder color for R-22 refrigerant?