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ASTM E372-13

(Test Method)

Standard Test Method for Determination of Calcium and Magnesium in Magnesium Ferrosilicon by EDTA Titration

Standard Test Method for Determination of Calcium and Magnesium in Magnesium Ferrosilicon by EDTA Titration

SIGNIFICANCE AND USE
4.1 This test method for the chemical analysis of metals and alloys is primarily intended to test such materials 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 work will be performed in a properly equipped laboratory.
SCOPE
1.1 This test method covers the chemical analysis of magnesium ferrosilicon having chemical compositions within the following limits:
Element  
Composition Range, %  
Aluminum  
2.0 max  
Calcium  
0.25 to 3.00  
Carbon  
0.50 max  
Cerium  
1.0 max  
Chromium  
0.50 max  
Magnesium  
2.00 to 12.00  
Manganese  
1.0 max  
Silicon  
40.00 to 55.00  
Sulfur  
0.025 max  
Titanium  
0.2 max
1.2 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. For general precautions to be observed in this test method, refer to Practices E50.

General Information

Status
Historical
Publication Date
14-Nov-2013
ICS
77.040.30 - Chemical analysis of metals
Technical Committee
E01 - Analytical Chemistry for Metals, Ores, and Related Materials
Drafting Committee
E01.01 - Iron, Steel, and Ferroalloys
Current Stage
Ref Project

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ASTM E372-13 - Standard Test Method for Determination of Calcium and Magnesium in Magnesium Ferrosilicon by EDTA TitrationASTM E372-13 - Standard Test Method for Determination of Calcium and Magnesium in Magnesium Ferrosilicon by EDTA Titration
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REDLINE ASTM E372-13 - Standard Test Method for Determination of Calcium and Magnesium in Magnesium Ferrosilicon by EDTA TitrationREDLINE ASTM E372-13 - Standard Test Method for Determination of Calcium and Magnesium in Magnesium Ferrosilicon by EDTA Titration
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E372 − 13
Standard Test Method for
Determination of Calcium and Magnesium in Magnesium
1
Ferrosilicon by EDTA Titration
This standard is issued under the fixed designation E372; 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 E173 Practice for Conducting Interlaboratory Studies of
Methods for Chemical Analysis of Metals (Withdrawn
1.1 This test method covers the chemical analysis of mag-
3
1998)
nesium ferrosilicon having chemical compositions within the
following limits:
3. Terminology
Element Composition Range, %
3.1 For definitions of terms used in this test method refer to
Aluminum 2.0 max
Terminology E135.
Calcium 0.25 to 3.00
Carbon 0.50 max
Cerium 1.0 max
4. Significance and Use
Chromium 0.50 max
Magnesium 2.00 to 12.00
4.1 This test method for the chemical analysis of metals and
Manganese 1.0 max
alloys is primarily intended to test such materials for compli-
Silicon 40.00 to 55.00
Sulfur 0.025 max
ance with compositional specifications. It is assumed that all
Titanium 0.2 max
who use this test method will be trained analysts capable of
1.2 This standard does not purport to address all of the
performing common laboratory procedures skillfully and
safety concerns, if any, associated with its use. It is the
safely. It is expected that work will be performed in a properly
responsibility of the user of this standard to establish appro-
equipped laboratory.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For general
5. Hazards
precautions to be observed in this test method, refer to
5.1 For precautions to be observed in the use of certain
Practices E50.
reagents and equipment in this test method, refer to Practices
E50.
2. Referenced Documents
2
2.1 ASTM Standards:
5.2 Specific hazard statements are given in 13.7.1 and 14.1.
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
6. Sampling
E32 Practices for Sampling Ferroalloys and Steel Additives
6.1 For procedures for sampling the material, refer to
for Determination of Chemical Composition
Practices E32.
E50 Practices for Apparatus, Reagents, and Safety Consid-
erations for Chemical Analysis of Metals, Ores, and
7. Rounding Calculated Values
Related Materials
E135 Terminology Relating to Analytical Chemistry for
7.1 Calculated values shall be rounded to the desired num-
Metals, Ores, and Related Materials
ber of places as directed in Practice E29.
8. Interlaboratory Studies
1
This test method is under the jurisdiction of ASTM Committee E01 on
Analytical Chemistry for Metals, Ores, and Related Materials and are the direct
8.1 This test method has been evaluated in accordance with
responsibility of Subcommittee E01.01 on Iron, Steel, and Ferroalloys.
Practice E173, unless otherwise noted in the precision and bias
Current edition approved Nov. 15, 2013. Published January 2014. Originally
section.
approved in 1976. Redesignated E372 in 1980. Last previous edition approved in
2006 as E372 – 01 (2006). DOI: 10.1520/E0372-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E372 − 13
CALCIUM AND MAGNESIUM BY THE where:
(ETHYLENEDINITRILO)TETRAACETIC ACID
A = calcium, mg, and
(EDTA) TITRIMETRIC METHOD
B = EDTA solution required to titrate the calcium solution,
mL.
9. Scope
13.3.4 Calculate the magnesium equivalent of the solution
9.1 This test method covers the determination of magne-
as follows:
sium in compositions from2%to12% and calcium in
Magnesium equivalent, mg/mL 5 C 30.6068 (2)
compositions from 0.25 % to 3.0 %.
where C = calcium equivalent (13.3.3).
10. Summary of Test Method
13.4 Eriochrome Black-T Indicator Solution (6 g/L of
methanol)—Dissolve 0.3 g of Eriochrome Black-T and1gof
10.1 After dissolution of the sample in nitric and hydroflu-
sodium borate decahydrate (Na B O ·10H O) in 50 mL of
oric acids, an ammonium hydroxide precipitation is made to 2 4 7 2
methanol. Do not use a solution that has stood for more than 8
separate other elements from calcium and magnesium.
h.
Calcium, and magnesium plus calcium are titrated in separate
aliquot portions after adding trie
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: E372 − 01 (Reapproved 2006) E372 − 13
Standard Test Method for
Determination of Calcium and Magnesium in Magnesium
1
Ferrosilicon by EDTA Titration
This standard is issued under the fixed designation E372; 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 chemical analysis of magnesium ferrosilicon having chemical compositions within the
following limits:
Element Concentration Range, %
Element Composition Range, %
Aluminum 2.0 max
Calcium 0.25 to 3.00
Carbon 0.50 max
Cerium 1.0 max
Chromium 0.50 max
Magnesium 2.00 to 12.00
Manganese 1.0 max
Silicon 40.00 to 55.00
Sulfur 0.025 max
Titanium 0.2 max
1.2 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. For general precautions to be observed in this test method, refer to Practices E50.
2. Referenced Documents
2
2.1 ASTM Standards:
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E32 Practices for Sampling Ferroalloys and Steel Additives for Determination of Chemical Composition
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E60E135 Practice for Analysis of Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials by
Spectrophotometry
3
E173 Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals (Withdrawn 1998)
3. Terminology
3.1 For definitions of terms used in this test method refer to Terminology E135.
4. Significance and Use
4.1 This test method for the chemical analysis of metals and alloys is primarily intended to test such materials 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 work will be performed in a properly equipped laboratory.
1
This test method is under the jurisdiction of ASTM Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials and are the direct responsibility
of Subcommittee E01.01 on Iron, Steel, and Ferroalloys.
Current edition approved Nov. 1, 2006Nov. 15, 2013. Published November 2006January 2014. Originally approved in 1976. Redesignated E372 in 1980. Last previous
edition approved in 20012006 as E372 – 01.E372 – 01 (2006). DOI: 10.1520/E0372-01R06.10.1520/E0372-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 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 the ASTM website.
3
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 ----------------------
E372 − 13
4. Apparatus, Reagents, and Photometric Practice
4.1 Apparatus and reagents required for each determination are listed in separate sections preceding the procedure. The
apparatus, standard solutions, and certain other reagents used in more than one procedure are referred to by number and shall
conform to the requirements prescribed in Practices E50, except that photometers shall conform to the requirements prescribed in
Practice E60.
4.2 Photometric practice prescribed in this test method shall conform to Practice E60.
5. Hazards
5.1 For precautions to be observed in the use of certain reagents and equipment in this test method, refer to Practices E50.
5.2 Specific hazard statements are given in 13.7.1 and 14.1.
6. Sampling
6.1 For procedures for sampling the material, refer to MethodsPractices E32.
7. Rounding Calculated Values
7.1 Calculated values shall be rounded to the desired number of places as directed in 3.4 to 3.6 of Practice E29.
8. Interlaboratory Studies
8.1 This test method has been evaluated in accordance with Practice E173, unless otherwise noted in the precision and bias
section.
CALCIUM AND MAGNESIUM BY THE (ETH
...

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Mass Fraction
Range, %  
Calcium  
0.001 to 0.007  
Chromium  
0.04 to 2.5  
Cobalt  
0.03 to 0.2  
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0.03 to 0.6  
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0.04 to 2.5  
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0.005 to 1.5  
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Niobium  
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Vanadium  
0.012 to 0.6  
1.1.1 Unless exceptions are noted, mass fraction ranges can be extended and additional elements can be included by the use of suitable reference materials and measurement conditions. Deviations from the published scope must be validated by experimental means. See Guide E2857 for information on validation options.  
1.2 The values stated in the International System of Units (SI) are to be regarded as standard. The values given in parentheses are mathematical conversions to other units that are provided for information only, because they may be used in older software and laboratory procedures.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 10.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM E2209-22(Test Method)
Standard Test Method for Analysis of High Manganese Steel by Spark Atomic Emission Spectrometry

SIGNIFICANCE AND USE
5.1 The chemical composition of high manganese steel alloys must be determined accurately to ensure the desired metallurgical properties. This procedure is suitable for manufacturing control and inspection testing.
SCOPE
1.1 This test method covers the analysis of high manganese steel by spark atomic emission spectrometry for the following elements in the ranges shown:    
Elements  
Composition Range, %  
Aluminum (Al)  
0.02 to 0.15  
Carbon (C)  
0.3 to 1.4  
Chromium (Cr)  
0.25 to 2.00  
Manganese (Mn)  
8.0 to 16.2  
Molybdenum (Mo)  
0.03 to 2.0  
Nickel (Ni)  
0.05 to 4.0  
Phosphorus (P)  
0.025 to 0.06  
Silicon (Si)  
0.25 to 1.5
Note 1: The ranges represent the actual levels at which this method was tested.2 These composition ranges can be extended by the use of suitable reference materials. Validation of these extensions may be conducted by following Practice E2587. Sulfur is not included because differences in results between laboratories exceeded acceptable limits at all sulfur levels.  
1.2 This test method may involve hazardous materials, operations, and equipment. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM E1086-22(Test Method)
Standard Test Method for Analysis of Austenitic Stainless Steel by Spark Atomic Emission Spectrometry

SIGNIFICANCE AND USE
5.1 The chemical composition of stainless steels must be determined accurately to ensure the desired metallurgical properties. This test method is suitable for manufacturing control and inspection testing.
SCOPE
1.1 This test method2 covers the analysis of austenitic stainless steel by spark atomic emission spectrometry for the following elements in the ranges shown    
Element  
Composition Range, %  
Chromium  
17.0 to 23.0  
Nickel  
7.5 to 13.0  
Molybdenum  
0.01 to 3.0    
Manganese  
0.01 to 2.0    
Silicon  
0.01 to 0.90  
Copper  
0.01 to 0.30  
Carbon  
0.005 to 0.25  
Phosphorus  
0.003 to 0.15  
Sulfur  
0.003 to 0.065  
1.2 This test method is designed for the analysis of chill-cast disks or inspection testing of stainless steel samples that have a flat surface of at least 13 mm (0.5 in.) in diameter. The samples must be sufficiently massive to prevent overheating during the discharge and of a similar metallurgical condition and composition as the reference materials.  
1.3 One or more of the reference materials must closely approximate the composition of the specimen. The technique of analyzing reference materials with unknowns and performing the indicated mathematical corrections (typically referred to as type standardization) may also be used to correct for interference effects and to compensate for errors resulting from instrument drift. A variety of such systems are commonly used. Any of these that will achieve analytical accuracy equivalent to that reported for this test method are acceptable.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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