Which statement about the 4-inch vacuum option for small appliances is correct?

Recovery requirements · EPA 608 Type I. The correct answer, and the reasoning behind it.

The small-appliance definition and the recovery levels required.

The question

Which statement about the 4-inch vacuum option for small appliances is correct?

• AIt applies regardless of equipment age or compressor conditionCorrect answer
• BIt may be used only with equipment made before November 15, 1993
• CIt may be used only when the appliance compressor works
• DIt may be used only at disposal, never during service

Why “It applies regardless of equipment age or compressor condition” is correct

Section 82.156(b) gives three alternatives joined by "or": 80 percent with old equipment, 90 or 80 percent with newer equipment depending on the compressor, or evacuation to four inches of mercury vacuum. The vacuum option is not tied to equipment age or compressor condition.

Source: 40 CFR 82.156(b)

Why the other answers are wrong

• It may be used only with equipment made before November 15, 1993 — The rule lists the 4-inch option as a separate choice open to all certified recovery equipment, old or new.
• It may be used only when the appliance compressor works — The compressor's condition matters for the percentage levels, not for the 4-inch option.
• It may be used only at disposal, never during service — The small-appliance levels in 82.156(b) apply both before opening and at disposal.

Practice more of this

More EPA 608 Type I practice questions, or see every EPA 608 practice test.