ASTM D5865-11a
(Test Method)Standard Test Method for Gross Calorific Value of Coal and Coke
Standard Test Method for Gross Calorific Value of Coal and Coke
SIGNIFICANCE AND USE
The gross calorific value can be used to compute the total calorific content of the quantity of coal or coke represented by the sample for payment purposes.
The gross calorific value can be used for computing the calorific value versus sulfur content to determine whether the coal meets regulatory requirements for industrial fuels.
The gross calorific value can be used to evaluate the effectiveness of beneficiation processes.
The gross calorific value can be required to classify coals according to Classification D388.SCOPE
1.1 This test method pertains to the determination of the gross calorific value of coal and coke by either an isoperibol or adiabatic bomb calorimeter.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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. Specific hazard statements are given in Section 8.
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Designation:D5865 −11a
StandardTest Method for
1
Gross Calorific Value of Coal and Coke
This standard is issued under the fixed designation D5865; 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.
1. Scope* E144Practice for Safe Use of Oxygen Combustion Bombs
E178Practice for Dealing With Outlying Observations
1.1 This test method pertains to the determination of the
E882Guide for Accountability and Quality Control in the
grosscalorificvalueofcoalandcokebyeitheranisoperibolor
Chemical Analysis Laboratory
adiabatic bomb calorimeter.
E2251Specification for Liquid-in-Glass ASTM Thermom-
1.2 The values stated in SI units are to be regarded as
eters with Low-Hazard Precision Liquids
standard. No other units of measurement are included in this
standard.
3. Terminology
1.3 This standard does not purport to address all of the
3.1 For additional definitions of terms used in this test
safety concerns, if any, associated with its use. It is the
method, refer to Terminology D121.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- 3.2 Definitions:
bility of regulatory limitations prior to use. Specific hazard
3.2.1 adiabatic calorimeter—a calorimeter that operates in
statements are given in Section 8.
the adiabatic mode and may or may not use a microprocessor.
Theinitialtemperaturebeforeinitiatingthecombustionandthe
2. Referenced Documents
final temperatures are recorded by the operator or the micro-
2
processor.
2.1 ASTM Standards:
D121Terminology of Coal and Coke
3.2.2 automated calorimeter—a calorimeter which has a
D346Practice for Collection and Preparation of Coke
microprocessor that takes the thermometric readings and cal-
Samples for Laboratory Analysis
culates the Calibration Value and the Heat of Combustion
D388Classification of Coals by Rank
Values.
D1193Specification for Reagent Water
3.2.3 British thermal unit [Btu]—is the amount of heat
D2013Practice for Preparing Coal Samples for Analysis
required to raise the temperature of one pound - mass [lbm] of
D3173Test Method for Moisture in theAnalysis Sample of
liquid water at one atmosphere pressure one degree Fahrenheit
Coal and Coke
at a stated temperature.The results of combustion calorimetric
D3177TestMethodsforTotalSulfurintheAnalysisSample
testsoffuelsforsteampowerplantsmaybeexpressedinterms
of Coal and Coke
of the 1956 International Steam Table calorie (I.T. cal) which
D3180Practice for Calculating Coal and Coke Analyses
is defined by the relation, 1 I.T. cal = 4.1868 J. The Btu used
from As-Determined to Different Bases
in modern steam tables is defined by the means of the relation,
D4239Test Method for Sulfur in the Analysis Sample of
1I.T.cal/g=1.8I.T.Btu/lb. Thus, 1 I.T. Btu / lb = 2.326 J
Coal and Coke Using High-Temperature Tube Furnace
/g.
Combustion
D7582Test Methods for Proximate Analysis of Coal and
3.2.4 calorific value—theheatproducedbycombustionofa
Coke by Macro Thermogravimetric Analysis
unit quantity of a substance under specified conditions.
3.2.5 calorimeter—a device for measuring calorific value
consisting of a bomb, its contents, a vessel for holding the
1
This test method is under the jurisdiction of ASTM Committee D05 on Coal
bomb, temperature measuring devices, ignition leads, water,
and Coke and is the direct responsibility of Subcommittee D05.21 on Methods of
Analysis.
stirrer, and a jacket maintained at specified temperature con-
Current edition approved Nov. 1, 2011. Published December 2011. Originally
ditions.
approved in 1995. Last previous edition approved in 2011 as D5865–11. DOI:
10.1520/D5865-11A.
3.2.6 gross calorific value (gross heat of combustion at
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
constant volume), Q (gross)—the heat produced by complete
v
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
combustion of a substance at constant volume with all water
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. formed condensed to a liquid.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D5865−11a
3.2.7 heat of formation—the change in heat content result- 6.2 Combustion Bomb—Constructed of materials that are
ing from the formation of 1 mole of a substance from its not affected by the combustion process or the products formed
elements at constant pressure.
to introduce me
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:D5865–11 Designation: D5865 – 11a
Standard Test Method for
1
Gross Calorific Value of Coal and Coke
This standard is issued under the fixed designation D5865; 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.
1. Scope*
1.1 This test method pertains to the determination of the gross calorific value of coal and coke by either an isoperibol or
adiabatic bomb calorimeter.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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. Specific hazard statements are given in Section 8.
2. Referenced Documents
2
2.1 ASTM Standards:
D121 Terminology of Coal and Coke
D346 Practice for Collection and Preparation of Coke Samples for Laboratory Analysis
D388 Classification of Coals by Rank
D1193 Specification for Reagent Water
D2013 Practice for Preparing Coal Samples for Analysis
D3173 Test Method for Moisture in the Analysis Sample of Coal and Coke
D3177 Test Methods for Total Sulfur in the Analysis Sample of Coal and Coke
D3180 Practice for Calculating Coal and Coke Analyses from As-Determined to Different Bases
D4239 Test Method for Sulfur in theAnalysis Sample of Coal and Coke Using High-Temperature Tube Furnace Combustion
D5142Test Methods for Proximate Analysis of the Analysis Sample of Coal and Coke by Instrumental Procedures 7582 Test
Methods for Proximate Analysis of Coal and Coke by Macro Thermogravimetric Analysis
E144 Practice for Safe Use of Oxygen Combustion Bombs
E178 Practice for Dealing With Outlying Observations
E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
E2251 Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
3. Terminology
3.1
3.1 For additional definitions of terms used in this test method, refer to Terminology D121.
3.2 Definitions:
3.1.1
3.2.1 adiabatic calorimeter—a calorimeter that operates in the adiabatic mode and may or may not use a microprocessor. The
initial temperature before initiating the combustion and the final temperatures are recorded by the operator or the microprocessor.
3.1.2
3.2.2 automated calorimeter—acalorimeterwhichhasamicroprocessorthattakesthethermometricreadingsandcalculatesthe
Calibration Value and the Heat of Combustion Values.
3.1.3
3.2.3 British thermal unit [Btu]—is the amount of heat required to raise the temperature of one pound - mass [lbm] of liquid
water at one atmosphere pressure one degree Fahrenheit at a stated temperature. The results of combustion calorimetric tests of
fuels for steam power plants may be expressed in terms of the 1956 International Steam Table calorie (I.T. cal) which is defined
1
This test method is under the jurisdiction ofASTM Committee D05 on Coal and Coke and is the direct responsibility of Subcommittee D05.21 on Methods ofAnalysis.
´1
Current edition approved Oct.Nov. 1, 2011. Published December 2011. Originally approved in 1995. Last previous edition approved in 20102011 as D5865–10a .
D5865–11. DOI: 10.1520/D5865-11A.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D5865 – 11a
by the relation, 1 I.T. cal = 4.1868 J. The Btu used in modern steam tables is defined by the means of the relation, 1 I.T. cal / g
= 1.8 I.T. Btu / lb. Thus, 1 I.T. Btu / lb = 2.326J/g.
3.1.4
3.2.4 calorific value—the heat produced by combustion of a unit quantity of a substance under specified conditions.
3.1.5
3.2.5 calorimeter—a device for measuring calorific value consisting of a bomb, its contents, a vessel for holding the bomb,
temperature measuring devices, ignition leads, water, stirrer, and a jacket maintained at specified temperature cond
...
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