Recovery & RecyclingQuestion 228 of 240
The two common DOT specifications for refillable refrigerant recovery cylinders are:
a.DOT-2P and DOT-2Q
b.DOT-39 and DOT-3E
c.DOT-4L and DOT-8
d.DOT-4BA and DOT-4BW
Explanation
Refillable recovery cylinders are typically built to DOT-4BA or DOT-4BW specifications, which are rated for repeated filling and periodic hydrostatic testing. DOT-39 is a non-refillable one-trip specification that must never be reused for recovery. Always confirm the cylinder is a refillable recovery type.
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Related questions on this topic
- For a small appliance recovered with equipment made after November 15, 1993 while its compressor runs, the required recovery is:
- Non-condensable gases in a recovery cylinder can cause a falsely high pressure reading. The best way to limit them is to:
- An EPA-approved testing organization that certifies recovery equipment to EPA standards is, for example:
- A technician recovers refrigerant that will be returned to the same owner's system after cleaning. This refrigerant may be:
- Before 2017, technicians had to certify to EPA that they had acquired certified recovery equipment. What is required today?
- Using recovery equipment made after November 15, 1993, an HCFC-22 appliance containing 200 pounds or more of refrigerant must be evacuated to:
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