Lead Inspector Certification Exam – Complete Study Guide, Practice Questions &
Exam Prep
If a paint chip cannot be sampled.. - ✔✔Note location in report and presume positive
How many paint chips for each testing combination? - ✔✔One
How large should paint chip be? - ✔✔4 square inches or 25 square centimeters or larger
How accurate should paint chip square be? - ✔✔nearest mm or 1/16th inch
When do you report results in ppm or % by weight? - ✔✔When all paint cannot be removed or
dimensions cannot be accurately measured.
When can no substrate be included in paint chip? - ✔✔When reported by % weight
What type of containers are paint chips collected in? - ✔✔Sealable rigid containers with screw
top lids
What type of certification should a lab have to perform lead analysis? - ✔✔EPAs National Lead
Laboratory Accreditation Program (NLLAP)
What mediums can XRF not be used for? - ✔✔Soil and dust
Definition of LBP - ✔✔Equal to for greater than 1.0 mg/cm2 or 0.5% by weight
, What are the three forms of proof of competency for inspectors? - ✔✔1. manufacturers
training cert 2. radiation safety license 3. state LBP inspection cert
What is the difference between an agreement state and non agreement state? -
✔✔Agreement states regulate radioactive materials themselves in cooperation with NRC, non-
agreement the NRC regulates directly
How high a dose of radiation is acceptable for general public? - ✔✔No higher than 2
millirems/hour
When to take calibration readings? - ✔✔Before and after testing, every 4 hours, per
manufacturers instructions
What is a testing combination? - ✔✔Room equivalent + component + substrate
What is a room equivalent? - ✔✔Identifiable unit of a residence. (bedroom, bathroom, foyer,
etc)
What constitutes a painted surface? - ✔✔Anything with paint, shellac, varnish, stain, covered
with wallpaper, or other coating
What are the limits of the inconclusive range? - ✔✔Entire range including boundary values
When should substrate corrections be done? - ✔✔When readings fall in substrate correction
range, take reading on bare substrate for correction value
What must be done to inconclusive XRF readings in single family homes? - ✔✔Lab
confirmation or assume positive
Exam Prep
If a paint chip cannot be sampled.. - ✔✔Note location in report and presume positive
How many paint chips for each testing combination? - ✔✔One
How large should paint chip be? - ✔✔4 square inches or 25 square centimeters or larger
How accurate should paint chip square be? - ✔✔nearest mm or 1/16th inch
When do you report results in ppm or % by weight? - ✔✔When all paint cannot be removed or
dimensions cannot be accurately measured.
When can no substrate be included in paint chip? - ✔✔When reported by % weight
What type of containers are paint chips collected in? - ✔✔Sealable rigid containers with screw
top lids
What type of certification should a lab have to perform lead analysis? - ✔✔EPAs National Lead
Laboratory Accreditation Program (NLLAP)
What mediums can XRF not be used for? - ✔✔Soil and dust
Definition of LBP - ✔✔Equal to for greater than 1.0 mg/cm2 or 0.5% by weight
, What are the three forms of proof of competency for inspectors? - ✔✔1. manufacturers
training cert 2. radiation safety license 3. state LBP inspection cert
What is the difference between an agreement state and non agreement state? -
✔✔Agreement states regulate radioactive materials themselves in cooperation with NRC, non-
agreement the NRC regulates directly
How high a dose of radiation is acceptable for general public? - ✔✔No higher than 2
millirems/hour
When to take calibration readings? - ✔✔Before and after testing, every 4 hours, per
manufacturers instructions
What is a testing combination? - ✔✔Room equivalent + component + substrate
What is a room equivalent? - ✔✔Identifiable unit of a residence. (bedroom, bathroom, foyer,
etc)
What constitutes a painted surface? - ✔✔Anything with paint, shellac, varnish, stain, covered
with wallpaper, or other coating
What are the limits of the inconclusive range? - ✔✔Entire range including boundary values
When should substrate corrections be done? - ✔✔When readings fall in substrate correction
range, take reading on bare substrate for correction value
What must be done to inconclusive XRF readings in single family homes? - ✔✔Lab
confirmation or assume positive
