ASTM D5515-22

Standard Test Method for Determination of the Swelling Properties of Bituminous Coal Using a Dilatometer

SIGNIFICANCE AND USE
5.1 Values of the dilatation properties of coals may be used to predict or explain the behavior of a coal or blends during carbonization or in other processes such as gasification, liquefaction, and combustion.
SCOPE
1.1 This test method specifies a procedure for the measurement of the swelling of bituminous coal using a dilatometer.  
1.2 The test method is limited in applicability to those coals which have a free swelling index ≥1 as determined in accordance with Test Method D720.  
1.3 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
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.

General Information

• Status: Published
• Publication Date: 31-Aug-2022
• ICS: 75.140 - Waxes, bituminous materials and other petroleum products
• Technical Committee: D05 - Coal and Coke
• Drafting Committee: D05.15 - Metallurgical Properties of Coal and Coke

Standards Content (Sample)

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.
Designation: D5515 − 22
Standard Test Method for
Determination of the Swelling Properties of Bituminous Coal
1
Using a Dilatometer
This standard is issued under the fixed designation D5515; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
The principle of this test method is that the final volume of char obtained at the conclusion of a
standard dilatation test is dependent on the mass of coal in the coal pencil and on the radius of the
retort tube.This test method incorporates a procedure which: determines the mass of air-dried coal in
the coal pencil; provides a means to measure the average retort tube radii; and employs a means to
report coal expansion on an air dried coal mass basis.
Other test methods used to determine the swelling properties of bituminous coals include the Ruhr
(ISO 8264) and Audibert-Arnu (ISO 349) International Standard Organization (ISO) test methods.
However these two ISO test methods provide consistently different values for percent dilatation and
percent contraction. Percent contraction and dilatation values obtained using the Audibert-Arnu test
method are higher and lower respectively than those obtained using the Ruhr test method. These
differences have been attributed to trimming the length of the coal pencil from different ends. The
Audibert-Arnu test method specifies that the wider end of the coal pencil be trimmed, while the Ruhr
test method specifies that the narrower end of the coal pencil be trimmed.
1. Scope mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This test method specifies a procedure for the measure-
ment of the swelling of bituminous coal using a dilatometer.
2. Referenced Documents
1.2 Thetestmethodislimitedinapplicabilitytothosecoals 2
2.1 ASTM Standards:
which have a free swelling index ≥1 as determined in accor-
D720Test Method for Free-Swelling Index of Coal
dance with Test Method D720.
D2013Practice for Preparing Coal Samples for Analysis
D2234/D2234MPractice for Collection of a Gross Sample
1.3 Units—The values stated in SI units are to be regarded
of Coal
as standard. The values given in parentheses after SI units are
3
providedforinformationonlyandarenotconsideredstandard.
2.2 ISO Standards:
ISO349Hard Coal-Audibert-Arnu Dilatometer Test
1.4 This standard does not purport to address all of the
ISO8264Hard Coal—Determination of the Swelling Prop-
safety concerns, if any, associated with its use. It is the
erties Using a Dilatometer
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
3. Terminology
mine the applicability of regulatory limitations prior to use.
3.1 Definitions:
1.5 This international standard was developed in accor-
3.1.1 air-dried coal pencil mass, M ,n—the calculated
dance with internationally recognized principles on standard-
dry
mass of the trimmed 60 mm long coal pencil corrected for
ization established in the Decision on Principles for the
added water, expressed in grams.
Development of International Standards, Guides and Recom-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This test method is under the jurisdiction of ASTM Committee D05 on Coal contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
and Coke and is the direct responsibility of Subcommittee D05.15 on Metallurgical Standards volume information, refer to the standard’s Document Summary page on
Properties of Coal and Coke. the ASTM website.
3
Current edition approved Sept. 1, 2022. Published September 2022. Originally Available from International Organization for Standardization (ISO), 1, ch. de
approved in 1994. Last previous edition approved in 2021 as D5515–21. DOI: la Voie-Creuse, Case postale 56, CH-1211, Geneva 20, Switzerland, http://
10.1520/D5515-22. www.iso.ch.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D5515 − 22
3.1.2 basement level reference mark height, BLRM ,n—the 3.1.7 percent contraction, %C, n—the minimum recorded
ht
char height as measured using the BLRM, after removing the height of the char expressed as a positive whole number
piston/retort assembly as a unit after completion of the test, percentage,basedonaninitialcoalpencilheightof60mm(see
expressed in millimetres. Fig. 1a th
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D5515 − 21 D5515 − 22
Standard Test Method for
Determination of the Swelling Properties of Bituminous Coal
1
Using a Dilatometer
This standard is issued under the fixed designation D5515; 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.
INTRODUCTION
The principle of this test method is that the final volume of char obtained at the conclusion of a
standard dilatation test is dependent on the mass of coal in the coal pencil and on the radius of the
retort tube. This test method incorporates a procedure which: determines the mass of air-dried coal in
the coal pencil; provides a means to measure the average retort tube radii; and employs a means to
report coal expansion on an air dried coal mass basis.
Other test methods used to determine the swelling properties of bituminous coals include the Ruhr
(ISO 8264) and Audibert-Arnu (ISO 349) International Standard Organization (ISO) test methods.
However these two ISO test methods provide consistently different values for percent dilatation and
percent contraction. Percent contraction and dilatation values obtained using the Audibert-Arnu test
method are higher and lower respectively than those obtained using the Ruhr test method. These
differences have been attributed to trimming the length of the coal pencil from different ends. The
Audibert-Arnu test method specifies that the wider end of the coal pencil be trimmed, while the Ruhr
test method specifies that the narrower end of the coal pencil be trimmed.
1. Scope
1.1 This test method specifies a procedure for the measurement of the swelling of bituminous coal using a dilatometer.
1.2 The test method is limited in applicability to those coals which have a free swelling index ≥1 as determined in accordance with
Test Method D720.
1.3 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided
for information only and are not considered standard.
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.
1
This test method is under the jurisdiction of ASTM Committee D05 on Coal and Coke and is the direct responsibility of Subcommittee D05.15 on Metallurgical Properties
of Coal and Coke.
Current edition approved April 1, 2021Sept. 1, 2022. Published April 2021September 2022. Originally approved in 1994. Last previous edition approved in 20202021 as
D5515 – 20.D5515 – 21. DOI: 10.1520/D5515-21.10.1520/D5515-22.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5515 − 22
2. Referenced Documents
2
2.1 ASTM Standards:
D720 Test Method for Free-Swelling Index of Coal
D2013 Practice for Preparing Coal Samples for Analysis
D2234/D2234M Practice for Collection of a Gross Sample of Coal
3
2.2 ISO Standards:
ISO 349 Hard Coal-Audibert-Arnu Dilatometer Test
ISO 8264 Hard Coal—Determination of the Swelling Properties Using a Dilatometer
3. Terminology
3.1 Definitions:
3.1.1 air-dried coal pencil mass, M —, n—the calculated mass of the trimmed 60 mm long coal pencil corrected for added water,
dry
expressed in grams.
3.1.2 basement level reference mark height, BLRM ,—n—the char height as measured using the BLRM, after removing the
ht
piston/retort assembly as a unit after completion of the test, expressed in millimetres.
3.1.3 coal pencil—pencil, n—a 60 mm long test specimen formed by compression in a mold from coal which has been pulverized
to pass a 250 μm (No. 60 U.S. standard sieve) sieve.
3.1.4 equivalent percent dilatation for 2.50 g of air dried coal, %D ,—n—the calculated percent expansion for a 2.50 g,
2.50
unmoistened, 60 mm long, coal pencil corrected for average tube radii, expressed
...