Lead inspector Questions and Answers
(Top Grade Assured) 2026 Update
AAS - Correct Answers ✅Atomic absorption spectrometry
AIHA - Correct Answers ✅American Industrial Hygiene
Association
ASTM - Correct Answers ✅American Society for testing and
materials
Biological half life of soft tissue - Correct Answers ✅60-90
days
Biological half life in bone - Correct Answers ✅10-30 years
Chelation - Correct Answers ✅purpose to leach out lead
from the body: there's oral and IV. Also pulls other stuff out of
the body besides lead. Needed if blood lead level is above 45
if/dL
Half life of Cobalt-57 - Correct Answers ✅9 months
Substrate corrections formula - Correct Answers ✅c = (m -
1.02)mg/cm(sq)
Substrate correction is NOT needed for measurements
greater than or equal to - Correct Answers ✅4.0 mg/cm(sq)
, Lead inspector Questions and Answers
(Top Grade Assured) 2026 Update
CLC = ALC-SEL - Correct Answers ✅Corrected lead
concentrated = apparent lead concentration - substrate
equivalent lead
The ALC would have 3 readings, and insert average.
Two types of chemical test kits - Correct Answers ✅Sodium
rhodizonate (will turn red-think r to r) and sodium
sulfate/sulfide (will turn black)
Abatement methods - Correct Answers ✅Removal,
replacement, enclosure (don't take wall out, put a wall over
it), encapsulation (A special elastomeric paint that has been
guaranteed by the fed gov to last 20 yrs)
Where do contractors typically fail? - Correct Answers
✅Window sills and window troughs (wells)
3 locations to get dust wipe samples - Correct Answers
✅Floor, window well (trough) and window sill
Heat guns must be less than - Correct Answers ✅1,100
degrees F
Our insurance - Correct Answers ✅E&O: Errors and
Omissions - means you're insured for your opinion
(Top Grade Assured) 2026 Update
AAS - Correct Answers ✅Atomic absorption spectrometry
AIHA - Correct Answers ✅American Industrial Hygiene
Association
ASTM - Correct Answers ✅American Society for testing and
materials
Biological half life of soft tissue - Correct Answers ✅60-90
days
Biological half life in bone - Correct Answers ✅10-30 years
Chelation - Correct Answers ✅purpose to leach out lead
from the body: there's oral and IV. Also pulls other stuff out of
the body besides lead. Needed if blood lead level is above 45
if/dL
Half life of Cobalt-57 - Correct Answers ✅9 months
Substrate corrections formula - Correct Answers ✅c = (m -
1.02)mg/cm(sq)
Substrate correction is NOT needed for measurements
greater than or equal to - Correct Answers ✅4.0 mg/cm(sq)
, Lead inspector Questions and Answers
(Top Grade Assured) 2026 Update
CLC = ALC-SEL - Correct Answers ✅Corrected lead
concentrated = apparent lead concentration - substrate
equivalent lead
The ALC would have 3 readings, and insert average.
Two types of chemical test kits - Correct Answers ✅Sodium
rhodizonate (will turn red-think r to r) and sodium
sulfate/sulfide (will turn black)
Abatement methods - Correct Answers ✅Removal,
replacement, enclosure (don't take wall out, put a wall over
it), encapsulation (A special elastomeric paint that has been
guaranteed by the fed gov to last 20 yrs)
Where do contractors typically fail? - Correct Answers
✅Window sills and window troughs (wells)
3 locations to get dust wipe samples - Correct Answers
✅Floor, window well (trough) and window sill
Heat guns must be less than - Correct Answers ✅1,100
degrees F
Our insurance - Correct Answers ✅E&O: Errors and
Omissions - means you're insured for your opinion
