EPA 608 609 Recovery, Recycling, and Reclaiming 2 — Questions and Answers
Question 1: What is the key difference between recycling and reclaiming refrigerant?
- Recycling cleans to ARI-700 purity standards; reclaiming only reduces oil
- Reclaiming processes refrigerant to ARI-700 purity and requires chemical analysis; recycling only reduces contaminants on-site (Correct answer)
- There is no difference between the two terms
- Recycling can only be done off-site at a facility
Correct answer: Reclaiming processes refrigerant to ARI-700 purity and requires chemical analysis; recycling only reduces contaminants on-site
Reclaiming restores refrigerant to ARI-700 (AHRI-700) purity with a chemical analysis, while recycling merely reduces contaminants through filtration on-site.
Question 2: Recovered refrigerant may be returned to the same system or a system owned by the same owner without reclamation when it is only:
- Reclaimed
- Recycled or recovered (Correct answer)
- Reprocessed by a manufacturer
- Destroyed
Correct answer: Recycled or recovered
Refrigerant that is recovered or recycled may be returned to the same or another system owned by the same person without being reclaimed.
Question 3: Before refrigerant can be sold to a different owner, it must be:
- Recovered only
- Recycled on-site only
- Reclaimed to ARI-700 standards (Correct answer)
- Vented and replaced
Correct answer: Reclaimed to ARI-700 standards
Refrigerant changing ownership must be reclaimed to ARI-700 purity by a certified reclaimer before resale.
Question 4: A recovery cylinder should never be filled beyond what percentage of its capacity?
- 60%
- 80% (Correct answer)
- 90%
- 100%
Correct answer: 80%
Recovery cylinders must not be filled beyond 80% of capacity to allow room for liquid expansion and prevent rupture.
Question 5: What color combination identifies a DOT-approved refrigerant recovery cylinder?
- All green
- Gray body with yellow top (Correct answer)
- All yellow
- Blue body with white top
Correct answer: Gray body with yellow top
Recovery cylinders are marked with a gray body and yellow top to distinguish them from disposable refrigerant cylinders.
Question 6: Recovery cylinders must be hydrostatically tested and re-marked at least every:
- 1 year
- 3 years
- 5 years (Correct answer)
- 10 years
Correct answer: 5 years
DOT requires refillable recovery cylinders to be hydrostatically retested every 5 years.
Question 7: Mixing two different refrigerants in one recovery cylinder results in:
- A reusable blend
- A cross-contaminated mixture that usually must be destroyed (Correct answer)
- Higher reclaim value
- No problem if pressures match
Correct answer: A cross-contaminated mixture that usually must be destroyed
Mixed refrigerants cannot be separated economically and typically must be sent for destruction, so cylinders should hold only one refrigerant type.
EPA 608 609 Recovery, Recycling, and Reclaiming 2
What is the key difference between recycling and reclaiming refrigerant?