ASTM E1409-05
(Test Method)Standard Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique
Standard Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique
SIGNIFICANCE AND USE
This test method is primarily intended as a test for compliance with compositional specifications. It is assumed that all who use this test method will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that the work will be performed in a properly equipped laboratory.
SCOPE
1.1 This test method covers the determination of oxygen in titanium and titanium alloys in concentrations from 0.01 to 0.33 % and the determination of nitrogen in titanium and titanium alloys in concentrations from 0.003 to 0.11 %..
1.2 The values stated in both inch-pound and SI units are to be regarded separately as the standard. The values given in parentheses are for information only.
1.3 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 8.8.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:E1409–05
Standard Test Method for
Determination of Oxygen and Nitrogen in Titanium and
1
Titanium Alloys by the Inert Gas Fusion Technique
This standard is issued under the fixed designation E 1409; 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 E 1914 Practice for Use of Terms Relating to the Develop-
ment and Evaluation of Methods for Chemical Analysis
1.1 This test method covers the determination of oxygen in
titanium and titanium alloys in concentrations from 0.01 to
3. Terminology
0.33 % and the determination of nitrogen in titanium and
3.1 Definitions—For definitions of terms used in this
titanium alloys in concentrations from 0.003 to 0.11 %.
method, refer to Terminology E 135 and E 1914.
1.2 The values stated in both inch-pound and SI units are to
be regarded separately as the standard. The values given in
4. Summary of Test Method
parentheses are for information only.
4.1 This test method is intended for use with automated,
1.3 This standard does not purport to address all of the
commercially available, inert gas fusion analyzers. These
safety concerns, if any, associated with its use. It is the
analyzers typically measure both oxygen and nitrogen simul-
responsibility of the user of this standard to establish appro-
taneously or sequentially utilizing parallel measurement sys-
priate safety and health practices and determine the applica-
tems.
bility of regulatory limitations prior to use. Specific precau-
4.2 The test sample, plus flux, is fused in a graphite crucible
tionary statements are given in 8.8.
under a flowing inert gas stream (Ar, He) at a temperature
sufficient to release oxygen and nitrogen. Oxygen combines
2. Referenced Documents
2
with carbon to form CO and nitrogen is released as N .
2
2.1 ASTM Standards:
Depending on instrument design, the CO is oxidized to CO or
2
E50 Practices forApparatus, Reagents, and Safety Consid-
left as CO and swept by the inert gas stream into either an
erations for Chemical Analysis of Metals, Ores, and
infrared or thermal conductivity detector. The detector output
Related Materials
is compared to that of reference materials and the result is
E 135 Terminology Relating to Analytical Chemistry for
displayed as percent oxygen.The nitrogen is swept by the inert
Metals, Ores, and Related Materials
gas stream (helium gas) into a thermal conductivity detector.
E 173 Practice for Conducting Interlaboratory Studies of
3 The detector response is compared to that of reference mate-
Methods for Chemical Analysis of Metals
rials and the result is displayed as percent nitrogen.
E 882 Guide for Accountability and Quality Control in the
4.3 Inatypicalinstrumentforthedeterminationofnitrogen,
Chemical Analysis Laboratory
the sample gases are swept with inert gas through heated rare
E 1019 Test Method for Determination of Carbon, Sulfur,
earth/copper oxide that converts CO to CO and H to H O.
2 2 2
Nitrogen, and Oxygen in Steel and in Iron
The CO is absorbed on sodium hydroxide impregnated on
2
E 1601 Practice for Conducting an Interlaboratory Study to
clay,andtheH Oisremovedwithmagnesiumperchlorate.The
2
Evaluate the Performance of an Analytical Method
nitrogen, as N , enters the measuring cell and the thermistor
2
bridge output is integrated and processed to display percent
1
This test method is under the jurisdiction of ASTM Committee E01 on
oxygen.
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
responsibility of Subcommittee E01.06 on Ti, Zr, W, Mo, Ta, Nb, Hf.
5. Significance and Use
Current edition approved May 1, 2005. Published June 2005. Originally
approved in 1991. Last previous edition approved in 2004 as E 1409 – 04. 5.1 This test method is primarily intended as a test for
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
compliance with compositional specifications. It is assumed
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
that all who use this test method will be trained analysts
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3
Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E1409–05
capable of performing common laboratory procedures skill- 8.8 Titanium Sample Pickle Solution—Prepare a fresh solu-
fully and safely. It is expected that the work will be performed tion of 3 parts 30 % H O and 1 part 48 % HF. HNO may be
2 2 3
in a properly equipped laboratory.
sub
...
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