Which tool may a certified renovator use to determine that a component is free of lead-based paint?
- A moisture meter
- An infrared camera
- An EPA-recognized test kit
- A hardware-store pH test strip
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C. An EPA-recognized test kit
A certified renovator may use an EPA-recognized test kit, or collect paint chip samples for a recognized laboratory. Kits that EPA has not recognized do not count, whatever the label says.
Reference: 40 CFR 745.82(a)(2); 40 CFR 745.88
A heat gun may be used to soften paint only if it operates below
- 212 degrees F
- 700 degrees F
- 1,100 degrees F
- 2,000 degrees F
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C. 1,100 degrees F
Heat guns are prohibited at or above 1,100 degrees F because very hot paint gives off lead fume. A gun running at 700 degrees is allowed, so 700 is not the limit.
Reference: 40 CFR 745.85(a)(3)(iii)
What must be done with forced-air duct openings located inside an interior work area?
- Close them and cover them with taped-down plastic
- Leave them open to keep air moving
- Remove the grilles and vacuum inside
- Point a fan at them to push the dust away from them
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A. Close them and cover them with taped-down plastic
Duct openings in the work area are closed and covered with taped-down plastic so the HVAC system cannot spread dust through the building. Leaving them open, or blowing air at them, moves dust outside containment.
Reference: 40 CFR 745.85(a)(2)(i)(B)