Which practice keeps recovered refrigerants from being mixed?
Recovery techniques · EPA 608 Type II. The correct answer, and the reasoning behind it.
Recovering liquid first, speeding recovery, and avoiding cross-contamination.
The question
Which practice keeps recovered refrigerants from being mixed?
- Topping up a cylinder with whatever refrigerant is on hand
- Labelling the cylinder after it is full
- Combining partly full cylinders to save space
- Using a separate recovery cylinder for each refrigerantCorrect answer
Why “Using a separate recovery cylinder for each refrigerant” is correct
Each refrigerant should go into its own recovery cylinder. Mixed refrigerants are hard or impossible to reclaim and may have to be destroyed.
Source: EPA: Test Topics
Why the other answers are wrong
- Topping up a cylinder with whatever refrigerant is on hand — Adding a different refrigerant contaminates the whole cylinder.
- Labelling the cylinder after it is full — Labelling late does not prevent mixing; the contents must stay separate from the start.
- Combining partly full cylinders to save space — Combining cylinders mixes refrigerants if they differ.
Practice more of this
More EPA 608 Type II practice questions, or see every EPA 608 practice test.
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