ASTM E572-02a(2006)
(Test Method)Standard Test Method for Analysis of Stainless and Alloy Steels by X-ray Fluorescence Spectrometry
Standard Test Method for Analysis of Stainless and Alloy Steels by X-ray Fluorescence Spectrometry
SCOPE
1.1 This test method covers the analysis of stainless and alloy steels by wavelength dispersive X-ray Fluorescence Spectrometry for the determination of the following elements:Note 1
Unless exceptions are noted, concentration ranges can be extended by the use of suitable reference materials.
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. Specific precautionary statements are given in Section 10.
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Designation:E572–02a(Reapproved 2006)
Standard Test Method for
Analysis of Stainless and Alloy Steels by X-ray
1
Fluorescence Spectrometry
This standard is issued under the fixed designation E 572; 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 E 305 Practice for Establishing and Controlling Spectro-
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2 chemical Analytical Curves
1.1 This test method covers the analysis of stainless and
E 691 Practice for Conducting an Interlaboratory Study to
alloy steels by wavelength dispersive X-ray Fluorescence
Determine the Precision of a Test Method
Spectrometry for the determination of the following elements:
E 1361 Guide for Correction of Interelement Effects in
Element Range %
X-Ray Spectrometric Analysis
Chromium 2.0 to 25.0
Cobalt 0.03 to 0.40
E 1601 Practice for Conducting an Interlaboratory Study to
Copper 0.05 to 3.50
Evaluate the Performance of an Analytical Method
Manganese 0.3 to 5.0
E 1622 Practice for Correction of Spectral Line Overlap in
Molybdenum 0.15 to 3.5
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Nickel 0.20 to 35.0
Wavelength-Dispersive X-Ray Spectrometry
Niobium 0.05 to 1.3
E 1806 Practice for Sampling Steel and Iron for Determi-
Phosphorus 0.01 to 0.03
nation of Chemical Composition
Silicon 0.05 to 0.20
Sulfur 0.02 to 0.30
Titanium 0.002 to 0.04
3. Terminology
Vanadium 0.03 to 0.25
3.1 For definitions of terms used in this test method, refer to
NOTE 1—Unless exceptions are noted, concentration ranges can be
Terminology E 135.
extended by the use of suitable reference materials.
4. Summary of Test Method
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4.1 The test specimen is finished to a clean, uniform surface
responsibility of the user of this standard to establish appro-
and then irradiated with an X-ray beam of high energy. The
priate safety and health practices and determine the applica-
secondary X-rays produced are dispersed by means of crystals
bility of regulatory limitations prior to use. Specific precau-
and the intensities are measured by suitable detectors at
tionary statements are given in Section 10.
selected wavelengths. The outputs of the detectors in voltage
pulsesarecounted.Radiationmeasurementsaremadebasedon
2. Referenced Documents
the time required to reach a fixed number of counts, or on the
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2.1 ASTM Standards:
total counts obtained for a fixed time (generally expressed in
E 135 Terminology Relating to Analytical Chemistry for
counts per unit time). Concentrations of the elements are
Metals, Ores, and Related Materials
determined by relating the measured radiation of unknown
specimenstoanalyticalcurvespreparedwithsuitablereference
materials.Afixed-channel, polychromator system or a sequen-
1
This test method is under the jurisdiction of ASTM Committee E01 on
tial, monochromator can be used for measurement of the
Analytical Chemistry for Metals, Ores and Related Materials and is the direct
responsibility of Subcommittee E01.01 on Iron, Steel, and Ferroalloys. elements.
Current edition approved Nov. 1, 2006. Published November 2006. Originally
approved in 1976. Last previous edition approved in 2002 as E 572 – 02a.
5. Significance and Use
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Supporting data for this test method as determined by cooperative testing have
5.1 Thisprocedureissuitableformanufacturingcontroland
been filed at ASTM International Headquarters as RR: E-1-1032.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or for verifying that the product meets specifications. It provides
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
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the ASTM website. Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E572–02a (2006)
rapid, multi-element determinations with sufficient accuracy to conjunctionwiththedetectorsmayberequiredtoprovidemore
assure product quality. The analytical performance data in- accurate measurements. The system shall be equipped with an
cluded may be used as a benchmark to determine if similar appropriate device.
X-ray spectrometers provide equivalent precision and accu-
8. Reagents and Materials
racy, or if the performance of a particular spectrometer has
changed.
8.1 Detector Gas (P-10), consisting of a mixture of 90 %
argon and 10 % methane, for use with gas-flow proportional
6. Interferences
counters only.
6.1 Interelement effects or matrix effects exist for some of
the elements listed. Mathema
...
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