ASTM D293-93(2010)

Standard Test Method for the Sieve Analysis of Coke

SIGNIFICANCE AND USE
This test method determines the size distribution of coke for conformance to specifications of percentages retained on designated screen sizes.
SCOPE
1.1 This test method describes the separation of a coke sample into defined size fractions and expressing said fractions as a weight percent of the gross sample.
1.2 The values stated in SI units are to be regarded as the standard. Inch-pound units shall be accepted on an equivalent basis.  
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.

General Information

• Status: Historical
• Publication Date: 30-Apr-2010
• ICS: 75.160.10 - Solid fuels
• Technical Committee: D05 - Coal and Coke
• Drafting Committee: D05.15 - Metallurgical Properties of Coal and Coke

Relations

• Replaces: ASTM D293-93(2004) - Standard Test Method for the Sieve Analysis of Coke
• Effective Date: 01-May-2010
• Replaced By: ASTM D293/D293M-18 - Standard Test Method for the Sieve Analysis of Coke
• Effective Date: 01-Sep-2018
• Referred By: ASTM D3038-93(2018) - Standard Test Method for Drop Shatter Test for Coke
• Effective Date: 01-May-2010

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D293 − 93 (Reapproved 2010)
Standard Test Method for the
Sieve Analysis of Coke
This standard is issued under the fixed designation D293; 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 required, the specifications for same shall be by mutual
agreement between interested parties. Permissible variations in
1.1 This test method describes the separation of a coke
sieve openings and spacings shall be in accordance with
sample into defined size fractions and expressing said fractions
Specification E11.
as a weight percent of the gross sample.
4.1.1 For complete characterization of the size range of a
1.2 The values stated in SI units are to be regarded as the
coke sample, the number and size of the selected sieves should
standard. Inch-pound units shall be accepted on an equivalent
be such that no more than 25 % of the gross sample weight will
basis.
be retained on any given sieve.
1.3 This standard does not purport to address all of the
4.1.2 For coke 38.1 mm (1 ⁄2 in.) and larger in size, sieves
safety concerns, if any, associated with its use. It is the
ofheavydouble-crimpedwireandsquareorrectangularframes
2 2
responsibility of the user of this standard to establish appro-
with 0.56 to 0.84 m (6 to 9 ft ) of sieve area are satisfactory.
priate safety and health practices and determine the applica- 1
For coke smaller than 38.1 mm (1 ⁄2 in.) in size, sieves of
bility of regulatory limitations prior to use.
double-crimped wire and square or circular frames with 0.19 to
2 2
0.37 m (2 to 4 ft ) of sieve area are usually more convenient.
2. Referenced Documents
2 4.2 Weighing Balance, preferably of the platform type,
2.1 ASTM Standards:
having a sensitivity of 0.025 kg (0.05 lbs) or better, at rated
D346 Practice for Collection and Preparation of Coke
capacity and with graduations such that 0.05 kg (0.1 lb) can be
Samples for Laboratory Analysis
read without interpolation.
D4621 Guide for Quality Management in an Organization
That Samples or Tests Coal and Coke (Withdrawn 2010)
5. Test Sample
E11 Specification for Woven Wire Test Sieve Cloth and Test
Sieves
5.1 The test sample shall be taken in accordance with
E323 Specification for Perforated-Plate Sieves for Testing
Practice D346.
Purposes
6. Procedure
3. Significance and Use
6.1 Starting with the sieve having the largest opening, sieve
3.1 Thistestmethoddeterminesthesizedistributionofcoke
the sample of coke in quantities small enough to prevent
for conformance to specifications of percentages retained on
plugging and clogging of the sieve.
designated screen sizes.
6.1.1 Hand-fit each piece of coke retained on the 38.1-mm
(1 ⁄2-in.) or larger sieve. A piece is considered undersize, if in
4. Apparatus
some position and without forcing, it passes the sieve opening.
4.1 Sieves—Use square-hole sieves conforming to Specifi-
6.1.2 Shake vigorously on each succeeding sieve coke
cation E11. Where sieves larger than 100 mm (4 in.) are
pieces passing the 38.1-mm (1 ⁄2-in.) sieve. This shaking may
be performed manually or mechanically provided mechanical
This test method is under the jurisdiction of ASTM Committee D05 on Coal
shaking yields results equivalent to manual shaking. Note that
and Coke and is the direct responsibility of Subcommittee D05.15 on Metallurgical
the objectives of shaking, either manual or mechanical, are to
Properties of Coal and Coke.
place all of the naturally occurring pieces of a given size range
Current edition approved May 1, 2010. Published May 2010. Originally
approved in 1928. Last previous edition approved in 2004 as D
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