NJ LEAD SUPERVISOR EVALUATION TEST ANSWERS
AND QUESTIONS SET A+
✔✔T/ F target housing does not include housing for elderly (62 years or older) or
housing for disabilities unless a kid lives there or a 0 bedroom dwelling - ✔✔true
✔✔in multi family inspections, how many components of a given type must be tested to
obtain desired statistical level of confidence? - ✔✔40
✔✔what is most accurate measure for paint chip sampling? - ✔✔mg/ cm2 but can also
do by percent by weight
✔✔NLLAP - ✔✔National Lead Laboratory Accreditation Program
✔✔what type of tube is used for sample container? - ✔✔50mL centrifuge tube is the
typical sample container, up to 4 wipes per container
✔✔what size template should you use for dust wipe sampling on floors? - ✔✔12x12 is
preferred
✔✔how many blanks are needed? - ✔✔1 blank per 50 units tested
✔✔target housing - ✔✔built before 1978
✔✔soil hazard levels - ✔✔play area: 400,
yard: 1200,
5000 receives permanent abatement
✔✔what is level for water? - ✔✔15ppb
✔✔lead stays in body: - ✔✔94% of body burden in bones for 27 or more years,
30 days in blood,
30 days in soft tissue.
, body mistakes lead for calcium. should eat a high calcium/ iron diet for less lead uptake
✔✔what measurement classifies lead based paint> - ✔✔1mg/cm2 or more of lead
✔✔major source of lead for adults' and children? - ✔✔adults: inhalation from
occupational exposure
children: hand to mouth, ingestion (household dust)
✔✔how much of lead exposure could be contributed to baby formula if the child
consumes formula? - ✔✔up to 85%
✔✔half life of blood lead - ✔✔25-45 days
✔✔what is the best way to test for blood lead? - ✔✔venous blood draw
✔✔A Child occupied facility - ✔✔A building, or portion of a building, constructed prior to
1978, visited regularly by the same child, 6 yrs of age or under, on at least 2 different
days within any week, provided that each day's visit lasts at least 3 hrs and the
combined annual visits last at least 60 hours
✔✔what do you sample first? - ✔✔water, then dust
✔✔SUBSTRATE Corrections for XRF - ✔✔take the same substrate that requires
correction. Scrape to bare substrate. Two locations in same space. Take the 1.02 nis
standard. Place it between substrate and the XRF. take 3 readings. Do this in both
locations. You now have 6 readings. Add them up, then divide by 6. Subtract 1.02 (nis
standard) whatever the new number is (+ or -) is what you will add to every reading for
that substrate.
✔✔who tests the filters in respirators? - ✔✔NIOSH
✔✔APF - ✔✔Assigned Protection Factor
✔✔Which masks have highest and lowest APF? - ✔✔highest: scba
lowest: half face mask
✔✔what is a negative pressure respirator? - ✔✔the pressure within the mask is less
than the pressure outside
✔✔who must conduct a mask fit test? - ✔✔"competent person" someone who has the
proper training/ certification
✔✔when must you have a fit test? - ✔✔every 12 months, or if you have facial surgery,
lose 10lbs or more, facial scarring, or if someone thinks you are using incorrectly
AND QUESTIONS SET A+
✔✔T/ F target housing does not include housing for elderly (62 years or older) or
housing for disabilities unless a kid lives there or a 0 bedroom dwelling - ✔✔true
✔✔in multi family inspections, how many components of a given type must be tested to
obtain desired statistical level of confidence? - ✔✔40
✔✔what is most accurate measure for paint chip sampling? - ✔✔mg/ cm2 but can also
do by percent by weight
✔✔NLLAP - ✔✔National Lead Laboratory Accreditation Program
✔✔what type of tube is used for sample container? - ✔✔50mL centrifuge tube is the
typical sample container, up to 4 wipes per container
✔✔what size template should you use for dust wipe sampling on floors? - ✔✔12x12 is
preferred
✔✔how many blanks are needed? - ✔✔1 blank per 50 units tested
✔✔target housing - ✔✔built before 1978
✔✔soil hazard levels - ✔✔play area: 400,
yard: 1200,
5000 receives permanent abatement
✔✔what is level for water? - ✔✔15ppb
✔✔lead stays in body: - ✔✔94% of body burden in bones for 27 or more years,
30 days in blood,
30 days in soft tissue.
, body mistakes lead for calcium. should eat a high calcium/ iron diet for less lead uptake
✔✔what measurement classifies lead based paint> - ✔✔1mg/cm2 or more of lead
✔✔major source of lead for adults' and children? - ✔✔adults: inhalation from
occupational exposure
children: hand to mouth, ingestion (household dust)
✔✔how much of lead exposure could be contributed to baby formula if the child
consumes formula? - ✔✔up to 85%
✔✔half life of blood lead - ✔✔25-45 days
✔✔what is the best way to test for blood lead? - ✔✔venous blood draw
✔✔A Child occupied facility - ✔✔A building, or portion of a building, constructed prior to
1978, visited regularly by the same child, 6 yrs of age or under, on at least 2 different
days within any week, provided that each day's visit lasts at least 3 hrs and the
combined annual visits last at least 60 hours
✔✔what do you sample first? - ✔✔water, then dust
✔✔SUBSTRATE Corrections for XRF - ✔✔take the same substrate that requires
correction. Scrape to bare substrate. Two locations in same space. Take the 1.02 nis
standard. Place it between substrate and the XRF. take 3 readings. Do this in both
locations. You now have 6 readings. Add them up, then divide by 6. Subtract 1.02 (nis
standard) whatever the new number is (+ or -) is what you will add to every reading for
that substrate.
✔✔who tests the filters in respirators? - ✔✔NIOSH
✔✔APF - ✔✔Assigned Protection Factor
✔✔Which masks have highest and lowest APF? - ✔✔highest: scba
lowest: half face mask
✔✔what is a negative pressure respirator? - ✔✔the pressure within the mask is less
than the pressure outside
✔✔who must conduct a mask fit test? - ✔✔"competent person" someone who has the
proper training/ certification
✔✔when must you have a fit test? - ✔✔every 12 months, or if you have facial surgery,
lose 10lbs or more, facial scarring, or if someone thinks you are using incorrectly
