ASTM E279-97
(Test Method)Standard Test Method for Determination of Abrasion Resistance of Iron Ore Pellets and Sinter by the Tumbler Test
Standard Test Method for Determination of Abrasion Resistance of Iron Ore Pellets and Sinter by the Tumbler Test
SCOPE
1.1 This test method provides a relative measure of the resistance of iron ore pellets and sinter to degradation by impact and by abrasion.
1.2 The values as stated in SI units are to be regarded as the standard. The values in parentheses are given for information only.
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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Standards Content (Sample)
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Designation: E 279 – 97
Standard Test Method for
Determination of Abrasion Resistance of Iron Ore Pellets
and Sinter by the Tumbler Test
This standard is issued under the fixed designation E 279; 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 5. Significance and Use
1.1 This test method provides a relative measure of the 5.1 This test method is a comparative method intended
resistance of iron ore pellets and sinter to degradation by primarily to test materials for compliance with compositional
impact and by abrasion. specifications or for monitoring. It is assumed that all who use
1.2 The values as stated in SI units are to be regarded as the these procedures will be trained analysts capable of performing
standard. The values in parentheses are given for information common laboratory procedures skillfully and safely. It is
only. expected that work will be performed in a properly equipped
1.3 This standard does not purport to address all of the laboratory and that proper waste disposal procedures will be
safety concerns, if any, associated with its use. It is the followed. Appropriate quality control practices must be fol-
responsibility of the user of this standard to establish appro- lowed such as those described in Guide E 882.
priate safety and health practices and determine the applica- 5.2 This test method is used to monitor the feed to blast
bility of regulatory limitations prior to use. furnaces for process control.
2. Referenced Documents 6. Apparatus
2.1 ASTM Standards: 6.1 Tumbler Apparatus, as shown in Fig. 1, shall be a
E 135 Terminology Relating to Analytical Chemistry for circular drum 914 mm (36 in.) in inside diameter and 457 mm
Metals, Ores, and Related Materials (18 in.) in inside length constructed of steel plate at least 6.3
E 276 Test Method for Particle Size or Screen Analysis at mm ( ⁄4 in.) in thickness. The drum shall be replaced whenever
No. 4 (4.75-mm) Sieve and Finer for Metal-Bearing Ores the thickness of the plate is reduced by wear to 3.18 mm ( ⁄8
and Related Materials in.) in any area. Two equally spaced steel angle lifters, 50.8 by
E 389 Test Method for Particle Size or Screen Analysis at 50.8 by 6.35 mm (2 by 2 by ⁄4 in.) shall be solidly attached
No. 4 (4.75-mm) Sieve and Coarser for Metal-Bearing longitudinally inside the drum by riveting in such a manner as
Ores and Related Materials to prevent accumulation of material between the lifter and
E 877 Practice for Sampling and Sample Preparation of Iron drum. Preferably, one of the lifters shall be attached to the door
Ores and Related Materials for ease of sample removal. The lifters shall be fastened so that
E 882 Guide for Accountability and Quality Control in the the attached legs point away from the direction of rotation, thus
Chemical Analysis Laboratory giving a clear unobstructed shelf for lifting the sample. The
lifters shall be replaced when the wear is such that the shelf
3. Terminology
measures less than 47.6 mm (1 ⁄8 in.). The door shall be so
3.1 Definitions—For definitions of terms used in this test
constructed as to fit into the drum to form a smooth inner
method, refer to Terminology E 135. surface and during the test shall be rigidly fastened to prevent
any loss of the sample. The drum shall be rotated on stub axles
4. Summary of Test Method
about 38.1 mm (1 ⁄2 in.) in diameter attached to the ends of the
4.1 The sample is placed in a tumbler drum which is rotated.
drum by means of flanges welded or bolted so as to provide
The tumbled material is removed and screened to determine the
smooth inner surfaces. The apparatus shall be fitted with a
degradation.
revolution counter and, preferably, with an automatic device to
stop the drum after 200 revolutions.
6.2 Sieves—Square-mesh sieves having the following des-
This test method is under the jurisdiction of ASTM Committee E-1 on 1 3
ignations are needed: 2-in. (50-mm); 1 ⁄2-in. (37.5-mm); ⁄4-in.
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
1 3 1
(19.0-mm); ⁄2-in. (12.5-mm); ⁄8-in. (9.5-mm); ⁄4-in. (6.3-
responsibility of Subcommittee E01.02 on Ores, Concentrates, and Related Metal-
mm); and No. 30 (600-μm).
lurgical Materials.
Current edition approved April 10, 1997. Published June 1997. Originally
6.3 Scales—The scales used for weighing the sample shall
published as E 279 – 65 T. Last previous edition E 279 – 92.
be sensitive to 23 g (0.05 lb).
Annual Book of ASTM Standards, Vol 03.05.
3 6.4 Riffle, having a 37.5-mm (1 ⁄2-in.) opening.
Annual Book of ASTM Standards, Vol 03.06.
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