ASTM E1753-95
(Practice)Standard Practice for Use of Qualitative Chemical Spot Test Kits for Detection of Lead in Dry Paint Films
Standard Practice for Use of Qualitative Chemical Spot Test Kits for Detection of Lead in Dry Paint Films
SCOPE
1.1 This practice covers the use of commercial spot test kits based on either sulfide or rhodizonate for the qualitative determination of the presence of lead in dry paint films.
1.2 This practice may also be used as a qualitative procedure for other dry coating films such as varnishes.
1.3 This practice provides a list of the advantages and limitations of chemical spot test kits based on sulfide and rhodizonate to allow the user to choose the appropriate spot test for a given circumstance.
1.4 This practice contains notes which are explanatory and not part of mandatory requirements.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: E 1753 – 95 An American National Standard
Standard Practice for
Use of Qualitative Chemical Spot Test Kits for Detection of
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Lead in Dry Paint Films
This standard is issued under the fixed designation E 1753; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope color change within a specified time limit, usually within 10 to
30 s.
1.1 This practice covers the use of commercial spot test kits
3.1.5 rhodizonate spot test method—for lead detection, the
based on either sulfide or rhodizonate for the qualitative
use of a dilute solution of rhodizonate ion to test a painted
determination of the presence of lead in dry paint films.
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surface or paint chip for the qualitative presence of lead (1). A
1.2 This practice may also be used as a qualitative proce-
color change from yellow/orange to pink or red indicates the
dure for other dry coating films such as varnishes.
presence of lead above the level of detection of the test kit.
1.3 This practice provides a list of the advantages and
3.1.6 spot test—the application of reagent solution to a
limitations of chemical spot test kits based on sulfide and
prepared dry paint film sample, paint chip, paint powder, or
rhodizonate to allow the user to choose the appropriate spot test
painted surface and the subsequent observation for the pres-
for a given circumstance.
ence or absence of the characteristic color change.
1.4 This practice contains notes which are explanatory and
3.1.7 sulfide spot test method—for lead detection, the use of
not part of mandatory requirements.
a dilute solution of sulfide ion to test a painted surface or paint
1.5 This standard does not purport to address all of the
chip for the qualitative presence of lead (2). A color change
safety concerns, if any, associated with its use. It is the
from clear to grey or black indicates the presence of lead above
responsibility of the user of this standard to establish appro-
the level of detection of the spot test.
priate safety and health practices and determine the applica-
3.1.8 test kit—equipment (for example, a cutting tool,
bility of regulatory limitations prior to use.
adsorbent applicators, if necessary) and chemicals (for ex-
2. Referenced Documents
ample, sulfide or rhodizonate spot test reagents and any
extraction solutions needed) assembled for use during spot
2.1 EPA Standards:
testing for lead.
EPA 600/R-93/085 Investigation of Test Kits for Detection
2
of Lead in Paint, Dust and Soil
4. Summary of Practice
EPA 600/R-93/129 Identification of Performance Param-
2
4.1 A dry paint film sample (a painted surface, paint chip,
eters for Test Kit Measurement of Lead in Paint
ground paint powder, or core sample) is tested for lead
3. Terminology
qualitatively through the use of spot tests. Spot tests kits are
2+
based on the reaction of Lead II (Pb ) ion with either sulfide
3.1 Definitions:
2− 2−
ion (S ) or rhodizonate ion [C O ] resulting in a visual color
3.1.1 core sample—a fragment of a dry paint film removed 6 6
change from clear to grey or black for lead sulfide and from
from the substrate with a coring tool which is designed to
yellow/orange to pink or red for lead rhodizonate.
remove a specified area (that is, a square centimetre) of dry
4.1.1 Prior to performing the spot test, first clean the dry
paint film.
paint film surface. Except for surface tests, the film is then
3.1.2 negative test—the absence of the characteristic color
prepared by either cutting a notch or an angular cut in situ or
change within a specified time limit, usually within a few
by removing a paint chip or core sample.
minutes.
4.1.2 The test is performed by applying the spot test
3.1.3 paint chip sample—a fragment of a dry paint film
reagents (directly or with the use of an adsorbent applicator) to
removed from the substrate.
the prepared dry paint sample and observing the requisite color
3.1.4 positive test—the observation of the characteristic
change after a specified time, usually within a few minutes.
4.1.3 An interpretation of the presence or absence of lead in
1
This practice is under the jurisdiction of ASTM Committee E-6 on Performance
the dry paint sample is made based on the observation of the
of Buildings and is the direct responsibility of Subcommittee E06.23 on Lead Paint
presence or absence of the characteristic color change.
Abatement.
Current edition approved Sept. 10, 1995. Published November 1995. Originally
published as PS 18 – 95. Last previous edition PS 18 – 95.
2 3
Available from Superintendent of Documents, U.S. Government Printing The boldface numbers in parentheses refer to a list of re
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