Operating Instructions
863 Valley View Road, Eighty Four PA 15330 USA
Tel: 724-941-9701 Fax: 724-941-1369 e-mail: skctech@skcinc.com
Wipes for Disclosing the Presence of Lead
The Full Disclosure庐 Kit includes wipes, spray bottle of acetic acid, spray bottles of
deionized water, vials of Disclosing SR Powder, waxed paper sheets, and pairs of
disposable nitrile gloves (pictured above). The Full Disclosure Kit for Laboratory
Analysis includes all the above items, sample collection vials, labels, and disposable
templates.
Developed and patented* by the U.S. Center for Disease Control and
Prevention (CDC) and National Institute of Occupational Safety and Health
(NIOSH), Full Disclosure Lead Wipes鈥? indicate the presence of lead quickly and
easily by displaying a pink or red color when lead is present on skin,
specifically hands, or surfaces. This indicates that further hand washing or
surface cleaning is necessary to completely remove lead. Lead
Wipes can also be sent to a laboratory for quantitative analysis of lead content.
* U.S. Patent No. 6,248,593
鈥? Specified in NIOSH Method 9105
1
Sampling for Lead on Skin or Surfaces
Follow all steps of the instructions carefully.
Use the nitrile gloves provided in the kit when preparing the
developing solution or handling wipes before and after sampling to
avoid cross contamination. If performing successive wipe samples, use
a new pair of clean gloves for each sample.
Handling, storage, and disposal instructions for all materials are on
page 5.
Full Disclosure was designed to detect the presence of elemental lead
and other easily solubilized lead compounds. The extraction solution
will not solubilize all lead compounds. Full Disclosure is suitable for
elemental lead, lead nitrate, lead sulfate, lead acetate, and lead oxides.
Full Disclosure was not designed nor intended to detect lead chromates,
alkyl lead (i.e., tetraethyllead [TEL] or tetramethyllead [TML]), or other
less easily solubilized compounds of lead.
Full Disclosure is not suitable for the detection of lead in paint, paint
chips, on painted surfaces, or embedded in material such as plastic.
1. Preparation:
鈥? Chill the spray bottle of deionized water (labeled Developing Solution
#3) in an ice bath or refrigerator to approximately 35 F (2 C). Do not
freeze.
鈥? While wearing gloves,
tap one vial containing
Disclosing SR Powder
#1 to dislodge adhered
particles from the
walls of the vial. Pour
the entire contents of
the vial containing
Disclosing SR Powder
#1 into the spray bottle
Shake well to mix.
Pour one vial of Disclosing
of chilled deionized
SR Powder #1 into
water (labeled Developing Solution #3
Developing Solution spray bottle.
#3). Cap the bottle and
shake until thoroughly
mixed. The solution
will turn an orange color.
2
鈥? Mixed Developing Solution will remain active for several hours at
room temperature and for 10 days in refrigeration. Once expired,
discard solution, rinse and save spray nozzle. Use the additional bottle
of deionized water with saved spray nozzle and additional vial of
Disclosing SR Powder to mix a second batch of Developing Solution in
the second bottle labeled "Developing Solution #3." Follow Preparation
instructions.
2. Taking the Sample:
鈥? On skin:
Open the wipe packet and unfold the wipe.
Wipe both hands or a selected skin surface for
30 seconds using only one side of the wipe.
Use normal hand washing pressure.
Wipe hands or skin for 30
seconds using one side of wipe.
鈥? On surfaces:
With gloved hands,
unfold the wipe.
Using only one side
of the wipe,
thoroughly wipe a
designated area of
the surface using
repeated horizontal
motions. Wipe the
same surface area
again using the same Wipe surface area Wipe safety glasses, phones,
side of the wipe, but horizontally, then vertically shoes, etc. thoroughly using
using one side of wipe. one side of wipe.
wiping at a right
angle to the first
wiping motion.
Wipes may also be
used on irregular surfaces such as shoes or
frames of glasses.
When taking surface samples that are to be
sent to a laboratory for analysis (Lab Analysis
Kit) use a template to specify the sample area.
Use a new pair of clean gloves for successive
wipe samples.
Use a template to specify
sample area for samples to be
sent to a lab.
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3. Reading the Results:
鈥? Spread the wipe, sample (soiled) side facing
up, on a piece of pre-cut waxed paper.
Place wipe, sample side up, on
waxed paper.
鈥? Before using either spray bottle, prime by
aiming the nozzle into a garbage can and
depressing it until a fine spray appears.
鈥? Using Extraction Solution #2, spray the area
of the wipe with the greatest soiling by
depressing the pump nozzle at least 3 times.
Aim at soiled wipe and
depress nozzle 3 times.
鈥? Using prepared Developing Solution #3, spray
the same area of the wipe by depressing the
pump nozzle at least 2 times.
Aim at soiled wipe and
depress nozzle 2 times.
鈥? Read the results immediately. The presence of lead below the lower
limit of visual identification is indicated in the sample area by a yellow
color. The presence of lead above the lower limit of visual
identification is indicated in the sample area by a pink or red color.
The color bloom appears within seconds and begins to fade quickly as
the wipe dries. For information on other compounds that may cause a color
change,
Yellow Red
Lead below lower limit Lead above lower limit
of visual identification of visual identification
is present is present
(Red or Pink Shade)
Lower Limit of Visual Identification: 18 碌g of lead
4
see Interferences on p. 7.
Handling, Storing, and Disposing of Full Disclosure
Materials:
Disclosing SR Powder #1
97% powdered sodium rhodizonate compound.
Keep vial tightly closed and store in a cool, dry place.
Storing:
Wear chemical-resistant gloves (included in kit). Avoid contact with eyes,
Handling:
skin, and clothing. Do not inhale or ingest. Avoid prolonged or repeated
exposure. Wash thoroughly after handling.
Whatever cannot be saved for recovery or recycling should be disposed in
Disposing:
an appropriate and approved waste disposal facility. Observe all federal,
state, and local environmental regulations.
For more details, see Material Safety Data Sheet included in kit.
Extraction Solution #2
5% acetic acid and water solution.
Store in spray bottle at room temperature.
Storing:
Non-toxic, however, avoid contact with eyes and mucous membranes and
Handling:
prolonged inhalation.
Non-polluting; can be diluted with water and poured down a sink drain.
Disposing:
Developing Solution #3
Deionized water mixed with Disclosing SR Powder #1
After mixing, keep Developing Solution #3 cold [approx. 35 F (2 C)]
Storing:
whenever possible. In the field, keep the solution in a cooler and isolated
from food.
Developing Solution #3 will remain active for several hours at room
temperature and for 10 days if stored in a refrigerator. It is recommended
that the solution be used as soon as possible. When it deactivates, it
changes color from orange to pale yellow. If solution changes color from
orange to pale yellow, discard (see Disposing) and mix fresh solution.
Handling and
See Disclosing SR Powder #1 above or Material Safety Data Sheet for Disclosing
Disposing:
SR Powder #1 included in kit.
Full Disclosure Wipes After Testing
Do not store. Dispose of wipes as outlined below or insert into sample
Storing:
collection bottles and send to a laboratory for analysis.
Wear nitrile gloves to avoid contaminating the wipe.
Handling:
Dispose of used Full Disclosure wipes and any unused material observing
Disposing:
all federal, state, and local environmental regulations.
5
Using Lab Analysis (Quantitative) Kit
1. Prepare the Developing Solution #3 and take a sample
following the instructions for the Sampling for Lead on
Skin and Surfaces on page 2.
When sampling flat surfaces, use a template to maintain
the size of the sample area. Disposable templates are
included in the Quantitative Kit.
Use a template to
specify sample area.
2. Fold the wipe, sample (soiled) side facing in, and place in
the sample collection bottle. Identify the sample using the
labels provided in the kit.
Insert in sample collection
bottle and label.
3. Include 1 blank (unused wipe) for the laboratory for each
lot of samples. Place the blank wipe into a clean container to prevent contamination
of the wipe. Identify the blank using the labels provided in the kit.
4. Package samples, blanks, and all appropriate sample information and ship to an
accredited laboratory for analysis
Analysis (quantitative): Atomic absorption spectroscopy or electroanalysis according
to NIOSH Analytical Method 7082, 7105, or 7701 modified for wipes.
Lower Limit of Visual Identification (qualitative): 18 碌g of lead
For a listing of analytical laboratories that analyze Full Disclosure Lead Wipes, go to
www.skcinc.com or call SKC Technical Support at 1-800-752-8472 (outside of U.S., call
724-941-9701).
For a performance report on Full Disclosure, view Publication No. 1485 at www.skcinc.com.
6
Interferences
Full Disclosure may also display a color reaction to the following compounds, if
present:
鈥? Silver
鈥? Cadmium
鈥? Barium
鈥? Mercury
鈥? Titanium
However, the reaction would only occur with higher concentrations of these
compounds (less sensitivity than that of lead).
Silver, titanium, and mercury will cause a red hue (reddish-purple to hot pink)
that is different from that displayed with lead. Tin shows an opaque white color
at high concentrations. If it is suspected that these other elements are present,
use other testing methods to determine their presence and concentration prior
to using Full Disclosure for lead.
7
Description Cat. No.
Full Disclosure Kit 550-001
Full Disclosure Kit for Laboratory Analysis 550-002
Replacement Parts
Wipes, 10/pk 550-022
Disclosing SR Powder #1 550-020
Extraction Solution #2 in spray bottle 550-021
Deionized Water for Developing Solution #3 in spray bottle 550-023
Nitrile Gloves, 11/pr 550-024
www.skcinc.com
Notice: This operating instruction may not address all safety concerns (if any) associated with this product
and its use. The user is responsible for determining and following the appropriate safety and health
practices and regulatory limitations (if any) before using the product. The information contained in this
document should not be construed as legal advice, opinion, or as a final authority on legal or regulatory
procedures.
Form #40091 Rev 0509
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