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ASTM E372 - 21
Standard Test Method for Determination of Calcium and Magnesium in Magnesium Ferrosilicon by EDTA Titrimetry
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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. 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, health, and environmental 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.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E173 Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals
ICS Code
ICS Number Code 77.040.30 (Chemical analysis of metals)
UNSPSC Code
UNSPSC Code 11101712(Ferrous alloy)
Referencing This Standard
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DOI: 10.1520/E0372-21
Citation Format
ASTM E372-21, Standard Test Method for Determination of Calcium and Magnesium in Magnesium Ferrosilicon by EDTA Titrimetry, ASTM International, West Conshohocken, PA, 2021, www.astm.org
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