ASTM E508-08
(Test Method)Standard Test Method for Analysis of Calcium and Magnesium in Iron Ores by Flame Atomic Absorption Spectrometry
Standard Test Method for Analysis of Calcium and Magnesium in Iron Ores by Flame Atomic Absorption Spectrometry
SIGNIFICANCE AND USE
This test method is intended as a referee method for compliance with compositional specifications for impurity content. It is assumed that all who use this procedure will be trained analysts capable of performing common laboratory practices skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Follow appropriate quality control practices such as those described in Guide E 882.
SCOPE
1.1 This test method covers the determination of calcium and magnesium in iron ores, concentrates, and agglomerates in the mass fraction (%) range from 0.05 % to 5 % of calcium and 0.05 % to 3 % of magnesium.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.
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Designation:E508–08
Standard Test Method for
Analysis of Calcium and Magnesium in Iron Ores by Flame
1
Atomic Absorption Spectrometry
This standard is issued under the fixed designation E 508; 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 882 Guide for Accountability and Quality Control in the
Chemical Analysis Laboratory
1.1 This test method covers the determination of calcium
and magnesium in iron ores, concentrates, and agglomerates in
3. Terminology
themassfraction(%)rangefrom0.05 %to5 %ofcalciumand
3.1 Definitions—For definitions of terms used in this test
0.05 % to 3 % of magnesium.
method, refer to Terminology E 135.
1.2 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
4. Summary of Test Method
standard.
4.1 The sample is dissolved in HCl with the addition of a
1.3 This standard does not purport to address all of the
small amount of HNO . After evaporation and dehydration,
3
safety concerns, if any, associated with its use. It is the
any insoluble residue is filtered, treated for the recovery of
responsibility of the user of this standard to establish appro-
calcium and magnesium, and added to the main solution. The
priate safety and health practices and determine the applica-
solution is aspirated into the flame of the atomic absorption
bility of regulatory limitations prior to use.
spectrometer. For calcium, a nitrous oxide-acetylene burner is
2. Referenced Documents used,formagnesium,anair-acetyleneburnerispreferred(Note
2 1). The absorbed energy at the resonance line of the spectrum
2.1 ASTM Standards:
of calcium or magnesium, or both, is measured by atomic
D 1193 Specification for Reagent Water
absorption spectrophotometry and compared with that of the
E50 Practices forApparatus, Reagents, and Safety Consid-
calibration solutions of the two elements.
erations for Chemical Analysis of Metals, Ores, and
Related Materials
NOTE 1—If a nitrous oxide burner is used for the determination of
E 135 Terminology Relating to Analytical Chemistry for magnesium, the sensitivity is decreased by a factor of about three.
If an air-acetylene burner is used for the determination of calcium,
Metals, Ores, and Related Materials
several elements, if present in a mass fraction (%) of 1.0 or greater,
E 276 Test Method for Particle Size or Screen Analysis at
interfere with the calcium determination. Also, lanthanum chloride
No. 4 (4.75-mm) Sieve and Finer for Metal-Bearing Ores
(LaCl ) must be employed and the sensitivity is decreased by a factor of
3
and Related Materials
about two.
3
E 663 Practice for Flame Atomic Absorption Analysis
5. Significance and Use
1 5.1 This test method is intended as a referee method for
This test method is under the jurisdiction of ASTM Committee E01 on
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct compliance with compositional specifications for impurity
responsibility of Subcommittee E01.02 on Ores, Concentrates, and Related Metal-
content. It is assumed that all who use this procedure will be
lurgical Materials.
trained analysts capable of performing common laboratory
Current edition approved Dec. 15, 2008. Published January 2009. Originally
practices skillfully and safely. It is expected that work will be
approved in 1973. Last previous edition approved in 2003 as E 508 – 03.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
performed in a properly equipped laboratory and that proper
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
wastedisposalprocedureswillbefollowed.Followappropriate
Standards volume information, refer to the standard’s Document Summary page on
quality control practices such as those described in Guide
the ASTM website.
3
E 882.
Withdrawn. The last approved version of this historical standard is referenced
on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E508–08
6. Interferences HCl, 60 mL of background solution, and 40 mL of LaCl
3
solution. Dilute to volume and mix.
6.1 None of the elements normally found in iron ores
8.5 Iron, Background Solution (10 g/L)—Dissolve 10 g of
interfere with this test method (Note 1).
high-purity iron in 50 mLof HCl, and oxidize by the dropwise
addition of HNO . Evaporate to a syrupy consistency. Add
7. Apparatus
3
20 mL of HCl and dilute to 200 mL with water. Add 20 g of
7.1 Atomic Absorption Spectrophotometer, meeting the fol-
sod
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:E508–03 Designation:E508–08
Standard Test Method for
Analysis of Calcium and Magnesium in Iron Ores by Flame
1
Atomic Absorption Spectrometry
This standard is issued under the fixed designation E 508; 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
1.1 This test method covers the determination of calcium and magnesium in iron ores, concentrates, and agglomerates in the
concentration mass fraction (%) range from 0.05 % to 5 % of calcium and 0.05 % to 3 % of magnesium.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety problems,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.
2. Referenced Documents
2
2.1 ASTM Standards:
D 1193 Specification for Reagent Water
E50 Practices for Apparatus, Reagents, and Safety Precautions for Chemical Analysis of Metals Practices for Apparatus,
Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E 135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E 276 TestMethodforParticleSizeorScreenAnalysisatNo.4(4.75-mm)SieveandFinerforMetal-BearingOresandRelated
Materials
3
E 663 Practice for Flame Atomic Absorption Analysis
E 882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
2.2 Other Documents
E663-86 (1991)Practice for Flame Atomic Absorption Analysis
3. Terminology
3.1 Definitions—For definitions of terms used in this test method, refer to Terminology E135.E 135.
4. Summary of Test Method
4.1 ThesampleisdissolvedinhydrochloricacidHClwiththeadditionofasmallamountofnitricacid.HNO .Afterevaporation
3
and dehydration, any insoluble residue is filtered, treated for the recovery of calcium and magnesium, and added to the main
solution. The solution is aspirated into the flame of the atomic absorption spectrometer. For calcium, a nitrous oxide-acetylene
burner is used, for magnesium, an air-acetylene burner is preferred (Note 1). The absorbed energy at the resonance line of the
spectrum of calcium or magnesium, or both, is measured by atomic absorption spectrophotometry and compared with that of the
calibration solutions of the two elements.
NOTE 1—If a nitrous oxide burner is used for the determination of magnesium, the sensitivity is decreased by a factor of about three.
Ifanair-acetyleneburnerisusedforthedeterminationofcalcium,severalelements,ifpresentinpercentamounts,amassfraction(%)of1.0orgreater,
interfere with the calcium determination. Also, lanthanum chloride (LaCl ) must be employed and the sensitivity is decreased by a factor of about two.
3
5. Significance and Use
5.1 This test method is intended as a referee method for compliance with compositional specifications for impurity content. It
is assumed that all who use this procedure will be trained analysts capable of performing common laboratory practices skillfully
1
This test method is under the jurisdiction ofASTM Committee E-1E01 onAnalytical Chemistry for Metals, Ores, and Related Materials and is the direct responsibility
of Subcommittee E01.02 on Ores, Concentrates, and Related Metallurgical Materials.
Current edition approved June 10, 2003.Dec. 15, 2008. Published August 2003.January 2009. Originally approved in 1973. Last previous edition approved in 19982003
as E508–98.E 508 – 03.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Withdrawn. The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E508–08
and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures
will be followed. Follow appropriate quality control practices such as those des
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:E508–03 Designation:E508–08
Standard Test Method for
Analysis of Calcium and Magnesium in Iron Ores by Flame
1
Atomic Absorption Spectrometry
This standard is issued under the fixed designation E 508; 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
1.1 This test method covers the determination of calcium and magnesium in iron ores, concentrates, and agglomerates in the
concentration mass fraction (%) range from 0.05 % to 5 % of calcium and 0.05 % to 3 % of magnesium.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety problems,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.
2. Referenced Documents
2
2.1 ASTM Standards:
D 1193 Specification for Reagent Water
E50 Practices for Apparatus, Reagents, and Safety Precautions for Chemical Analysis of Metals Practices for Apparatus,
Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E 135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E 276 TestMethodforParticleSizeorScreenAnalysisatNo.4(4.75-mm)SieveandFinerforMetal-BearingOresandRelated
Materials
3
E 663 Practice for Flame Atomic Absorption Analysis
E 882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
2.2 Other Documents
E663-86 (1991)Practice for Flame Atomic Absorption Analysis
3. Terminology
3.1 Definitions—For definitions of terms used in this test method, refer to Terminology E135.E 135.
4. Summary of Test Method
4.1 ThesampleisdissolvedinhydrochloricacidHClwiththeadditionofasmallamountofnitricacid.HNO .Afterevaporation
3
and dehydration, any insoluble residue is filtered, treated for the recovery of calcium and magnesium, and added to the main
solution. The solution is aspirated into the flame of the atomic absorption spectrometer. For calcium, a nitrous oxide-acetylene
burner is used, for magnesium, an air-acetylene burner is preferred (Note 1). The absorbed energy at the resonance line of the
spectrum of calcium or magnesium, or both, is measured by atomic absorption spectrophotometry and compared with that of the
calibration solutions of the two elements.
NOTE 1—If a nitrous oxide burner is used for the determination of magnesium, the sensitivity is decreased by a factor of about three.
Ifanair-acetyleneburnerisusedforthedeterminationofcalcium,severalelements,ifpresentinpercentamounts,amassfraction(%)of1.0orgreater,
interfere with the calcium determination. Also, lanthanum chloride (LaCl ) must be employed and the sensitivity is decreased by a factor of about two.
3
5. Significance and Use
5.1 This test method is intended as a referee method for compliance with compositional specifications for impurity content. It
is assumed that all who use this procedure will be trained analysts capable of performing common laboratory practices skillfully
1
This test method is under the jurisdiction ofASTM Committee E-1E01 onAnalytical Chemistry for Metals, Ores, and Related Materials and is the direct responsibility
of Subcommittee E01.02 on Ores, Concentrates, and Related Metallurgical Materials.
Current edition approved June 10, 2003.Dec. 15, 2008. Published August 2003.January 2009. Originally approved in 1973. Last previous edition approved in 19982003
as E508–98.E 508 – 03.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Withdrawn. The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E508–08
and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures
will be followed. Follow appropriate quality control practices such as those des
...
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