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Significance and Use
5.1 The crushing strength aids the pellet producer in the determination of quality problems associated with the production of pellets.
5.2 The crushing strength is often used by the pellet consumer as a quality indicator for performance in the blast furnace and gas-based direct reduction plants.
1.1 This test method describes a method for determining the crushing strength of fired iron ore pellets and direct-reduced iron. Cylindrical agglomerates and briquettes are not covered by this test method.
1.2 The values as stated in SI units are to be regarded as the standards. The values in parentheses are given for information only.
1.3 Results given by this test should be similar to those from ISO 4700 (see for details).
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E389 Test Method for Particle Size or Screen Analysis at No. 4 (4.75-mm) Sieve and Coarser for Metal-Bearing Ores and Related Materials
E877 Practice for Sampling and Sample Preparation of Iron Ores and Related Materials for Determination of Chemical Composition and Physical Properties
ISO StandardsISO 4700 Iron ore pellets for blast furnace and direct reduction feedstocksDetermination of the crushing strength
ICS Number Code 73.060.10 (Iron ores)
UNSPSC Code 11101601(Iron ore)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM E382-20, Standard Test Method for Determination of Crushing Strength of Iron Ore Pellets and Direct-Reduced Iron, ASTM International, West Conshohocken, PA, 2020, www.astm.orgBack to Top