ASTM D5702-07

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Designation: D5702 − 07
StandardPractice for
Field Sampling of Coating Films for Analysis for Heavy
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Metals
This standard is issued under the fixed designation D5702; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope lead, as certain requirements for worker and environmental
protection may need to be imposed. The presence and quantity
1.1 This practice covers a method to control the removal of
of hazardous materials in a paint can be determined through
samples of coating films from substrates for subsequent labo-
laboratory analysis; however, since the analysis is based on the
ratory analysis for heavy metal content on a mass basis. This
weight of the specimen, the removal of the sample must be
technique can be used in the field, the fabricating shop, or
properly controlled to improve the reliability of the test results.
laboratory.
The number and location of samples to be removed must also
1.2 The values stated in SI units are to be regarded as the
be determined to characterize properly the extent of the
standard. The values in parentheses are for information only.
presence of hazardous materials, if any, on a structure.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Materials and Equipment
responsibility of the user of this standard to establish appro-
4.1 Sample Collection Container—A clean plastic bag or
priate safety and health practices and determine the applica-
rigid container comprised of a material such as polyethylene
bility of regulatory limitations prior to use. For specific hazard
that will not contaminate the sample.
information, see Section 5, Note 1 and Note 3.
4.2 Straight Edge or Ruler.
2. Referenced Documents
4.3 Knife or Chisel, cleaned and sharpened, for removing
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2.1 ASTM Standards:
paint samples.
D4138 Practices for Measurement of Dry Film Thickness of
4.4 Dry Film Thickness Gage, for measuring total coating
Protective Coating Systems by Destructive, Cross-
thickness.
Sectioning Means
D6132 Test Method for Nondestructive Measurement of Dry
5. Procedure
Film Thickness of Applied Organic Coatings Using an
5.1 Select a sufficient number of areas for coating removal
Ultrasonic Gage
that properly characterize the coatings on the structure.
D7091 Practice for Nondestructive Measurement of Dry
5.1.1 Selection may be based on painting history, knowl-
Film Thickness of Nonmagnetic Coatings Applied to
Ferrous Metals and Nonmagnetic, Nonconductive Coat- edge of previously applied coatings, prior touch-up and re-
painting programs, and other such factors.
ings Applied to Non-Ferrous Metals
5.1.2 Select areas that properly characterize the range of
3. Significance and Use
thickness found. Dry film thickness can be measured in
accordance with Test Methods D4138, D6132, or Practice
3.1 Prior to beginning a project that involves the removal,
D7091.
cutting, grinding, or burning of paint, it is necessary to
5.1.3 Remove a minimum of three samples.
determine if the coating contains hazardous materials, such as
5.2 At each sample site, clean the surface of dirt, dust, or
debris.
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This practice is under the jurisdiction of ASTM Committee D01 on Paint and
Related Coatings, Materials, and Applications and is the direct responsibility of
NOTE 1—Hazardous materials can be present in surface debris and
Subcommittee D01.46 on Industrial Protective Coatings.
chalk which may be removed during cleaning. Thus, consideration should
Current edition approved July 1, 2007. Published July 2007. Originally approved
be given to collecting this surface debris and chalk for analysis.
in 1995. Last previous edition approved in 2002 as D5702 – 02. DOI: 10.1520/
D5702-07.
5.3 At each sample site, use a knife and straight edge to
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
scribe the perimeter of a square through the coating film to the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
substrate. The square should be of sufficient size to give a one
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. gram sample.
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D5702 − 07
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NOTE 2—Paint with a density of 1.5 g/cm and 250 microns (10 mils)
6.1.2 Date and time of sampling.
thick will generate one gram of sample in a square that is 5 cm (2 in.) on
6.1.3 Project name and location.
a side assuming 100 percent of the materia
...