EPA Section 608 Universal Certification ExamType I (Small Appliances)Easy
A technician is storing recovered R-134a from a small appliance. What is the most important characteristic required for the storage cylinder?
- AIt must be DOT approved and have a current hydrostatic test date.
- BIt must be painted gray with a yellow top.
- CIt must be able to hold at least 30 pounds of refrigerant.
- DIt must have a minimum pressure rating of 500 psig.
Show answer & explanationAnswer & explanation
Correct answer: A. It must be DOT approved and have a current hydrostatic test date.
All refrigerant recovery cylinders must be approved by the Department of Transportation (DOT) and have a current hydrostatic test date to ensure they are safe for holding pressurized refrigerants and for transportation.
Why the other options are wrong
- B. While some cylinders have specific color codes, DOT approval and test dates are regulatory safety requirements.
- C. Capacity varies based on the job; a minimum of 30 pounds is not a universal requirement for all storage cylinders.
- D. The pressure rating depends on the refrigerant; a fixed 500 psig is not universally correct or the most important characteristic.
Refrigerant Storage Cylinder Requirements
Refrigerant storage cylinders must be Department of Transportation (DOT) approved and have a current hydrostatic test date to ensure their integrity and safety for containing pressurized refrigerants.
- DOT certification ensures safe transport.
- Hydrostatic testing verifies cylinder integrity.
- Prevents ruptures and leaks.
- Mandated by safety regulations.
Memory trick: DOT approved, hydro-tested, safety invested!