ASTM F2617-08

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Designation: F 2617 – 08
Standard Test Method for
Identification and Quantification of Chromium, Bromine,
Cadmium, Mercury, and Lead in Polymeric Material Using
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Energy Dispersive X-ray Spectrometry
This standard is issued under the fixed designation F 2617; 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 D 3641 Practice for Injection Molding Test Specimens of
Thermoplastic Molding and Extrusion Materials
1.1 This test method describes an energy dispersive X-ray
D 4703 Practice for Compression Molding Thermoplastic
fluorescence (EDXRF) spectrometric procedure for identifica-
Materials into Test Specimens, Plaques, or Sheets
tion and quantification of chromium, bromine, cadmium,
D 6299 Practice for Applying Statistical Quality Assurance
mercury, and lead in polymeric materials.
and Control Charting Techniques to Evaluate Analytical
1.2 This test method is not applicable to determine total
Measurement System Performance
concentrations of polybrominated biphenyls (PBB), polybro-
E29 Practice for Using Significant Digits in Test Data to
minateddiphenylethers(PBDE)orhexavalentchromium.This
Determine Conformance with Specifications
test method cannot be used to determine the valence states of
E 135 Terminology Relating to Analytical Chemistry for
atoms or ions.
Metals, Ores, and Related Materials
1.3 Thistestmethodisapplicableforarangefrom20mg/kg
E 1361 Guide for Correction of Interelement Effects in
to approximately 1 wt % for chromium, bromine, cadmium,
X-Ray Spectrometric Analysis
mercury, and lead in polymeric materials.
F 2576 Terminology Relating to Declarable Substances in
1.4 This test method is applicable for homogeneous poly-
Materials
meric material.
1.5 The values stated in SI units are to be regarded as the
3. Terminology
standard. Values given in parentheses are for information only.
3.1 Definitions—DefinitionsoftermsapplyingtoXRF,plas-
1.6 This test method is not applicable to quantitative deter-
tics and declarable substances appear in Terminology E 135,
minations for specimens with one or more surface coatings
Terminology D 883 and Terminology F 2576, respectively.
present on the analyzed surface; however, qualitative informa-
3.1.1 Compton scatter—the inelastic scattering of an X-ray
tion may be obtained. In addition, specimens less than infi-
photon through its interaction with the bound electrons of an
nitely thick for the measured X rays, must not be coated on the
atom; this process is also referred to as incoherent scatter.
reverse side or mounted on a substrate.
3.1.2 Rayleigh scatter—the elastic scattering of an X-ray
1.7 This standard does not purport to address all of the
photon through its interaction with the bound electrons of an
safety concerns, if any, associated with its use. It is the
atom; this process is also referred to as coherent scatter.
responsibility of the user of this standard to establish appro-
3.1.2.1 Discussion—The measured count rate of Compton
priate safety and health practices and determine the applica-
and Rayleigh scattered radiation varies depending upon speci-
bility of regulatory limitations prior to use.
men composition and may thus be used to compensate for
2. Referenced Documents matrix effects. One option is to use the measured count rate of
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the Compton scatter in the same manner as the measured count
2.1 ASTM Standards:
rate of an internal standard element. Alternatively, the mea-
D 883 Terminology Relating to Plastics
sured count rate of the Compton scatter or the Compton/
Rayleigh scatter ratio may be used indirectly for estimating the
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This test method is under the jurisdiction of ASTM Committee F40 on
effective mass absorption coefficient of the specimen, which is
Declarable Substances in Materials and is the direct responsibility of Subcommittee
used to compensate for matrix effects. The concept of correc-
F40.01 on Test Methods.
Current edition approved Aug. 15, 2008. Published September 2008. tions based on the Compton scatter effect is discussed as an
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
optional part of several calibration choices in this standard.
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F2617–08
3.1.3 fundamental parameters (FP) model—a model for with one another. Peaks from Cd may overlap wit
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