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ASTM E372-01

(Test Method)

Standard Test Method Determination of Calcium and Magnesium Ferrosilicon

Standard Test Method Determination of Calcium and Magnesium Ferrosilicon

SCOPE
1.1 This test method covers the chemical analysis of magnesium ferrosilicon having chemical compositions within the following limits:ElementConcentration Range, %Aluminum2.0 maxCalcium 0.25 to 3.00Carbon 0.50 maxCerium 1.0 maxChromium0.50 maxMagnesium2.00 to 12.00Manganese1.0 maxSilicon 40.00 to 55.00Sulfur 0.025 maxTitanium0.2 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
09-May-2001
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

Relations

Replaces
ASTM E372-84(1996) - Standard Test Method Determination of Calcium and Magnesium Ferrosilicon
Effective Date
10-May-2001
Replaced By
ASTM E372-01(2006) - Standard Test Method for Determination of Calcium and Magnesium in Magnesium Ferrosilicon
Effective Date
01-Nov-2006

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ASTM E372-01 - Standard Test Method Determination of Calcium and Magnesium FerrosiliconASTM E372-01 - Standard Test Method Determination of Calcium and Magnesium Ferrosilicon
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ASTM E372-01 - Standard Test Method Determination of Calcium and Magnesium Ferrosilicon
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E372–01
Standard Test Method for
Determination of Calcium and Magnesium in Magnesium
1
Ferrosilicon
This standard is issued under the fixed designation E 372; 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 E60 Practice for Photometric and Spectrophotometric
3
Methods for Chemical Analysis of Metals
1.1 This test method covers the chemical analysis of mag-
E 173 Practice for Conducting Interlaboratory Studies of
nesium ferrosilicon having chemical compositions within the
4
Methods for Chemical Analysis of Metals
following limits:
Element Concentration Range, %
3. Significance and Use
Aluminum 2.0 max
3.1 This test method for the chemical analysis of metals and
Calcium 0.25 to 3.00
alloys is primarily intended to test such materials for compli-
Carbon 0.50 max
ance with compositional specifications. It is assumed that all
Cerium 1.0 max
Chromium 0.50 max
who use this test method will be trained analysts capable of
Magnesium 2.00 to 12.00
performing common laboratory procedures skillfully and
Manganese 1.0 max
safely. It is expected that work will be performed in a properly
Silicon 40.00 to 55.00
Sulfur 0.025 max
equipped laboratory.
Titanium 0.2 max
4. Apparatus, Reagents, and Photometric Practice
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 Apparatus and reagents required for each determination
responsibility of the user of this standard to establish appro- are listed in separate sections preceding the procedure. The
priate safety and health practices and determine the applica- apparatus, standard solutions, and certain other reagents used
bility of regulatory limitations prior to use. For general in more than one procedure are referred to by number and shall
precautions to be observed in this test method, refer to conform to the requirements prescribed in Practices E50,
except that photometers shall conform to the requirements
PracticesE50.
prescribed in PracticeE60.
2. Referenced Documents
4.2 Photometric practice prescribed in this test method shall
2.1 ASTM Standards: conform to PracticeE60.
E29 Practice for Using Significant Digits in Test Data to
2 5. Sampling
Determine Conformance with Specifications
E32 PracticesforSamplingFerroalloysandSteelAdditives 5.1 For procedures for sampling the material, refer to
3
for Determination of Chemical Composition MethodsE32.
E50 Practices forApparatus, Reagents, and Safety Consid-
6. Rounding Calculated Values
erations for Chemical Analysis of Metals, Ores, and
3
6.1 Calculated values shall be rounded to the desired num-
Related Materials
ber of places as directed in 3.4 to 3.6 of PracticeE29.
7. 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 7.1 This test method has been evaluated in accordance with
responsibility of Subcommittee E01.01 on Iron, Steel, and Ferroalloys.
PracticeE 173,unlessotherwisenotedintheprecisionandbias
Current edition approved May 10, 2001. Published July 2001. Originally
section.
published as E 568 – 76 T. Redesignated E 372 in 1980. Last previous edition
E 372 – 84 (1996).
2
Annual Book of ASTM Standards, Vol 14.02.
3 4
Annual Book of ASTM Standards, Vol 03.05. Discontinued; see 1997 Annual Book of ASTM Standards, Vol 03.05.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E372–01
CALCIUM AND MAGNESIUM BY THE 12.3.3 Calculate the magnesium equivalent of the solution
(ETHYLENEDINITRILO)TETRAACETIC ACID as follows:
(EDTA) TITRIMETRIC METHOD
Magnesium equivalent, mg/mL 5 C 3 0.6068 (2)
where C = calcium equivalent (12.3.2).
8. Scope
12.4 Eriochrome Black-T Indicator Solution (6 g/L of
8.1 This test method covers the determination of magne-
methanol)—Dissolve 0.3 g of Eriochrome Black-T and1gof
sium in concentrations from 2 to 12 % and calcium in
sodium borate decahydrate (Na B O ·10H O) in 50 mL of
concentrations from 0.25 to 3.0 %.
2 4 7 2
methanol. Do not use a solution that has stood for more than 8
9. Summary of Test Method
h.
9.1 Afterdissolutionofthesampleinnitricandhydrofluoric 12.5 Hydroxy Naphthol Blue Mixture—Add 1.0 g of indi-
acids, an ammonium hydroxide precipitation is made to sepa- cator to 100 g NaCl and mix thoroughly.
rate other elements from calcium and magnesium. Calcium,
12.6 Magnesium Chloride (2.5 g/L)—Dissolve 0.25 g of
and magnesium plus calcium are titrated in separat
...

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4.1 These test methods for the chemical analysis of beryllium metal are primarily intended as referee methods to test such materials for compliance with compositional specifications. It is assumed that all who use these test methods 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.
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1.1 These test methods cover the chemical analysis of beryllium having chemical compositions within the following limits:    
Element  
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1.5 The values stated in SI units are to be regarded as standard. The values in parentheses are given for information only.  
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1.1 This guide covers information for using Combustion, Inert Gas Fusion and Hot Extraction instruments to determine the mass fraction of the non-metallic elements Carbon, Sulfur, Nitrogen, Oxygen and Hydrogen in metals, ores and related materials.  
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5.1 This test method is suitable for manufacturing control and for verifying that a product meets specifications. This test method provides rapid, multi-element determinations with sufficient accuracy to ensure product quality and to minimize production delays. The analytical performance data may be used as a benchmark to determine if similar X-ray spectrometers provide equivalent precision and accuracy, or if the performance of a particular X-ray spectrometer has changed.  
5.2 Calcium is sometimes added to steel to affect inclusion shape which enhances certain mechanical properties of steel. This test method is useful for determining the residual calcium in the steel after such treatment.  
5.2.1 Because calcium occurs primarily in inclusions, the precision of this test method is a function of the distribution of the calcium-bearing inclusions in the steel. The variation of determinations on freshly prepared surfaces will give some indication of the distribution of these inclusions.
SCOPE
1.1 This test method covers the wavelength dispersive X-ray fluorescence analysis of low-alloy steels for the following elements:    
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Mass Fraction
Range, %  
Calcium  
0.001 to 0.007  
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0.04 to 2.5  
Cobalt  
0.03 to 0.2  
Copper  
0.03 to 0.6  
Manganese  
0.04 to 2.5  
Molybdenum  
0.005 to 1.5  
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0.04 to 3.0  
Niobium  
0.002 to 0.1  
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0.010 to 0.08  
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0.06 to 1.5  
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0.009 to 0.1  
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.  
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ASTM E2209-22(Test Method)
Standard Test Method for Analysis of High Manganese Steel by Spark Atomic Emission Spectrometry

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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.
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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:    
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Composition Range, %  
Aluminum (Al)  
0.02 to 0.15  
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0.3 to 1.4  
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0.25 to 2.00  
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0.03 to 2.0  
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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.  
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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.  
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