ASTM D293-93(2004)

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 problems, 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: 31-Mar-2004
• 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(1999) - Standard Test Method for the Sieve Analysis of Coke
• Effective Date: 01-Apr-2004
• Replaced By: ASTM D293-93(2010) - Standard Test Method for the Sieve Analysis of Coke
• Effective Date: 01-May-2010
• Referred By: ASTM D3038-93(2018) - Standard Test Method for Drop Shatter Test for Coke
• Effective Date: 01-Apr-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 2004)
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 agreement between interested parties. Permissible variations in
sieve openings and spacings shall be in accordance with
1.1 This test method describes the separation of a coke
Specification E11.
sample into defined size fractions and expressing said fractions
4.1.1 For complete characterization of the size range of a
as a weight percent of the gross sample.
coke sample, the number and size of the selected sieves should
1.2 The values stated in SI units are to be regarded as the
besuchthatnomorethan25 %ofthegrosssampleweightwill
standard. Inch-pound units shall be accepted on an equivalent
be retained on any given sieve.
basis.
4.1.2 For coke 38.1 mm (1 ⁄2 in.) and larger in size, sieves
1.3 This standard does not purport to address all of the
ofheavydouble-crimpedwireandsquareorrectangularframes
safety concerns, if any, associated with its use. It is the
2 2
with 0.56 to 0.84 m (6 to 9 ft ) of sieve area are satisfactory.
responsibility of the user of this standard to establish appro-
For coke smaller than 38.1 mm (1 ⁄2 in.) in size, sieves of
priate safety and health practices and determine the applica-
double-crimped wire and square or circular frames with 0.19 to
bility of regulatory limitations prior to use.
2 2
0.37 m (2 to 4 ft ) of sieve area are usually more convenient.
2. Referenced Documents 4.2 Weighing Balance, preferably of the platform type,
having a sensitivity of 0.025 kg (0.05 lbs) or better, at rated
2.1 ASTM Standards:
capacity and with graduations such that 0.05 kg (0.1 lb) can be
D346 Practice for Collection and Preparation of Coke
read without interpolation.
Samples for Laboratory Analysis
D4621 Guide for Quality Management in an Organization
5. Test Sample
That Samples or Tests Coal and Coke
5.1 The test sample shall be taken in accordance with
E11 SpecificationforWovenWireTestSieveClothandTest
Practice D346.
Sieves
E323 Specification for Perforated-Plate Sieves for Testing
6. Procedure
Purposes
6.1 Starting with the sieve having the largest opening, sieve
3. Significance and Use the sample of coke in quantities small enough to prevent
plugging and clogging of the sieve.
3.1 Thistestmethoddeterminesthesizedistributionofcoke
6.1.1 Hand-fit each piece of coke retained on the 38.1-mm
for conformance to specifications of percentages retained on
(1 ⁄2-in.) or larger sieve. A piece is considered undersize, if in
designated screen sizes.
some position and without forcing, it passes the sieve opening.
4. Apparatus
6.1.2 Shake vigorously on each succeeding sieve coke
pieces passing the 38.1-mm (1 ⁄2-in.) sieve. This shaking may
4.1 Sieves—Use square-hole sieves conforming to Specifi-
be performed manually or mechanically provided mechanical
cation E11. Where sieves larger than 100 mm (4 in.) are
shaking yields results equivalent to manual shaking. Note that
required, the specifications for same shall be by mutual
the objectives of shaking, either manual or mechanical, are to
place all of the naturally occurring pieces of a given size range
This test method is under the jurisdiction of ASTM Committee D05 on Coal
on the appropriate sieve and to avoid degradation of the
and Coke and is the direct responsibility of Subcommittee D05.15 on Metalurgical
naturally occurring siz
...