A cylinder of recovered R-22 is being shipped to a reclaimer. What must its labels show?
The refrigerant it holds and a Department of Transportation classification tag. EPA's test outline lists both as the labels required on refrigerant cylinders.
- The name of the appliance owner
- Refrigerant name and DOT hazard class tagCorrect answer
- The date the system was installed
- The price paid for the refrigerant
Why “Refrigerant name and DOT hazard class tag” is correct
Cylinders being shipped must be labeled with the refrigerant they contain and carry the Department of Transportation classification tag for the hazard class. This tells handlers and the reclaimer what is inside.
Source: EPA: Test Topics
Why the other answers are wrong
- The name of the appliance owner — The owner's name is not a required cylinder label.
- The date the system was installed — Installation date has nothing to do with shipping labels.
- The price paid for the refrigerant — Price is not a labeling requirement.
The source, word for word
Labels required for refrigerant cylinders (refrigerant identification, DOT classification tag)
Reusable (or "recovery") cylinders versus disposable cylinders [ensure former Department of Transportation (DOT) approved, know former's yellow and gray color code, never refill latter]
Before a cylinder ships
EPA's outline ties these together, and they are worth checking in one pass. DOT's own regulations govern the shipment itself, so check them for anything beyond what this outline tests.
- The cylinder is a DOT-approved reusable recovery cylinder, with a gray body and yellow top. A disposable cylinder is never refilled.
- It is filled to no more than 80 percent. Why cylinders stop at 80 percent explains the risk.
- The label names what is inside, including when the cylinder holds a mix of refrigerants.
- The DOT classification tag is on the cylinder.
Keep practicing
- Why recovery cylinders stop at 80 percent
- Why emptying a recovery cylinder outdoors is venting
- What sets the pressure inside a cylinder
- EPA 608 Core practice test
Unofficial, not affiliated with the EPA or any EPA-approved certifying organization. Questions are original practice written from public EPA material, not real exam questions.