ASTM E2371-13

Standard Test Method for Analysis of Titanium and Titanium Alloys by Direct Current Plasma and Inductively Coupled Plasma Atomic Emission Spectrometry (Performance-Based Test Methodology)

SIGNIFICANCE AND USE
5.1 This test method for the chemical analysis of titanium and titanium alloys is primarily intended to test material for compliance with specifications of chemical composition such as those under the jurisdiction of ASTM Committee B10. It may also be used to test compliance with other specifications that are compatible with the test method.  
5.2 It is assumed that all who use this test method will be trained analysts capable of performing common laboratory procedures skillfully and safely and that the work will be performed in a properly equipped laboratory.  
5.3 This is a performance-based test method that relies more on the demonstrated quality of the test result than on strict adherence to specific procedural steps. It is expected that laboratories using this test method will prepare their own work instructions. These work instructions will include detailed operating instructions for the specific laboratory, the specific reference materials used, and performance acceptance criteria. It is also expected that, when applicable, each laboratory will participate in proficiency test programs, such as described in Practice E2027, and that the results from the participating laboratory will be satisfactory.
SCOPE
1.1 This method describes the analysis of titanium and titanium alloys, such as specified by committee B10, by inductively coupled plasma atomic emission spectrometry (ICP-AES) and direct current plasma atomic emission spectrometry (DCP-AES) for the following elements:    
Element  
Application
Range (wt.%)  
Quantitative
Range (wt.%)  
Aluminum  
0–8  
0.009 to 8.0  
Boron  
0–0.04  
0.0008 to 0.01  
Cobalt  
0-1  
0.006 to 0.1  
Chromium  
0–5  
0.005 to 4.0  
Copper  
0–0.6  
0.004 to 0.5  
Iron  
0–3  
0.004 to 3.0  
Manganese  
0–0.04  
0.003 to 0.01  
Molybdenum  
0–8  
0.004 to 6.0  
Nickel  
0–1  
0.001 to 1.0  
Niobium  
0-6  
0.008 to 0.1  
Palladium  
0-0.3  
0.02 to 0.20  
Ruthenium  
0-0.5  
0.004 to 0.10  
Silicon  
0–0.5  
0.02 to 0.4  
Tantalum  
0-1  
0.01 to 0.10  
Tin  
0–4  
0.02 to 3.0  
Tungsten  
0-5  
0.01 to -0.10  
Vanadium  
0–15  
0.01 to 15.0  
Yttrium  
0–0.04  
0.001 to 0.004  
Zirconium  
0–5  
0.003 to 4.0
1.2 This test method has been interlaboratory tested for the elements and ranges specified in the quantitative range part of the table above. It may be possible to extend this test method to other elements or broader mass fraction ranges as shown in the application range part of the table above provided that test method validation is performed that includes evaluation of method sensitivity, precision, and bias. Additionally, the validation study shall evaluate the acceptability of sample preparation methodology using reference materials or spike recoveries or both. Guide E2857 provides information on validation of analytical methods for alloy analysis.  
1.3 Because of the lack of certified reference materials (CRMs) containing bismuth, hafnium, and magnesium, these elements were not included in the scope or the interlaboratory study (ILS). It may be possible to extend the scope of this test method to include these elements provided that method validation includes the evaluation of method sensitivity, precision, and bias during the development of the testing method.  
1.4 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.  
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. Specific safety hazards statements are given in Section 9.

General Information

• Status: Historical
• Publication Date: 14-Jun-2013
• ICS: 71.040.50 - Physicochemical methods of analysis
• ICS: 77.120.50 - Titanium and titanium alloys
• Technical Committee: E01 - Analytical Chemistry for Metals, Ores, and Related Materials
• Drafting Committee: E01.06 - Ti, Zr, W, Mo, Ta, Nb, Hf, Re

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E2371 − 13
Standard Test Method for
Analysis of Titanium and Titanium Alloys by Direct Current
Plasma and Inductively Coupled Plasma Atomic Emission
1
Spectrometry (Performance-Based Test Methodology)
This standard is issued under the fixed designation E2371; 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 1.3 Because of the lack of certified reference materials
(CRMs) containing bismuth, hafnium, and magnesium, these
1.1 This method describes the analysis of titanium and
elements were not included in the scope or the interlaboratory
titanium alloys, such as specified by committee B10, by
study (ILS). It may be possible to extend the scope of this test
inductively coupled plasma atomic emission spectrometry
method to include these elements provided that method vali-
(ICP-AES) and direct current plasma atomic emission spec-
dation includes the evaluation of method sensitivity, precision,
trometry (DCP-AES) for the following elements:
and bias during the development of the testing method.
Application Quantitative
Element
Range (wt.%) Range (wt.%)
1.4 Units—The values stated in SI units are to be regarded
Aluminum 0–8 0.009 to 8.0
as the standard. No other units of measurement are included in
Boron 0–0.04 0.0008 to 0.01
Cobalt 0-1 0.006 to 0.1
this standard.
Chromium 0–5 0.005 to 4.0
Copper 0–0.6 0.004 to 0.5
1.5 This standard does not purport to address all of the
Iron 0–3 0.004 to 3.0
safety concerns, if any, associated with its use. It is the
Manganese 0–0.04 0.003 to 0.01
Molybdenum 0–8 0.004 to 6.0 responsibility of the user of this standard to establish appro-
Nickel 0–1 0.001 to 1.0
priate safety and health practices and determine the applica-
Niobium 0-6 0.008 to 0.1
bility of regulatory limitations prior to use. Specific safety
Palladium 0-0.3 0.02 to 0.20
Ruthenium 0-0.5 0.004 to 0.10
hazards statements are given in Section 9.
Silicon 0–0.5 0.02 to 0.4
Tantalum 0-1 0.01 to 0.10
2. Referenced Documents
Tin 0–4 0.02 to 3.0
Tungsten 0-5 0.01 to -0.10
2
Vanadium 0–15 0.01 to 15.0 2.1 ASTM Standards:
Yttrium 0–0.04 0.001 to 0.004
D1193 Specification for Reagent Water
Zirconium 0–5 0.003 to 4.0
E50 Practices for Apparatus, Reagents, and Safety Consid-
1.2 This test method has been interlaboratory tested for the
erations for Chemical Analysis of Metals, Ores, and
elements and ranges specified in the quantitative range part of
Related Materials
the table above. It may be possible to extend this test method
E135 Terminology Relating to Analytical Chemistry for
to other elements or broader mass fraction ranges as shown in
Metals, Ores, and Related Materials
the application range part of the table above provided that test
E1097 Guide for Determination of Various Elements by
method validation is performed that includes evaluation of
Direct Current Plasma Atomic Emission Spectrometry
method sensitivity, precision, and bias. Additionally, the vali-
E1329 Practice for Verification and Use of Control Charts in
dation study shall evaluate the acceptability of sample prepa-
Spectrochemical Analysis
ration methodology using reference materials or spike recov-
E1479 Practice for Describing and Specifying Inductively-
eries or both. Guide E2857 provides information on validation
Coupled Plasma Atomic Emission Spectrometers
of analytical methods for alloy analysis.
E1601 Practice for Conducting an Interlaboratory Study to
Evaluate the Performance of an Analytical Method
1
This test method is under the jurisdiction of ASTM Committee E01 on
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
2
responsibility of Subcommittee E01.06 on Ti, Zr, W, Mo, Ta, Nb, Hf, Re. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 15, 2013. Published June 2013. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 2004. Last previous edition approved in 2004 as E2371 - 04, which was Standards volume information, refer to the standard’s Document Summary page on
withdrawn in January 2013 and reinstated in June 2013. DOI: 10.1520/E2371-13. the ASTM website.
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E2371 − 13
E1763 Guide for Interpretation and Use of Results from Practice E2027, and that the results from the participating
Interlaboratory Testing of Chemical Analysis Methods laboratory will be satisfactory.
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(Withdrawn 2015)
E1832 Practice for Describing and Specifyin
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