ASTM D5865-07
(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 D 388.
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.
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: D 5865 – 07a
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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* E178 Practice for Dealing With Outlying Observations
E882 Guide for Accountability and Quality Control in the
1.1 This test method pertains to the determination of the
Chemical Analysis Laboratory
grosscalorificvalueofcoalandcokebyeitheranisoperibolor
E2251 Specification for Liquid-in-GlassASTM Thermom-
adiabatic bomb calorimeter.
eters with Low-Hazard Precision Liquids
1.2 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
3. Terminology
standard.
3.1 Definitions:
1.3 This standard does not purport to address all of the
3.1.1 adiabatic calorimeter—a calorimeter that operates in
safety concerns, if any, associated with its use. It is the
the adiabatic mode and may or may not use a microprocessor.
responsibility of the user of this standard to establish appro-
Theinitialtemperaturebeforeinitiatingthecombustionandthe
priate safety and health practices and determine the applica-
final temperatures are recorded by the operator or the micro-
bility of regulatory limitations prior to use. Specific hazard
processor.
statements are given in Section 8.
3.1.2 automated calorimeter—a calorimeter which has a
2. Referenced Documents microprocessor that takes the thermometric readings and cal-
2
culates the Calibration Value and the Heat of Combustion
2.1 ASTM Standards:
Values.
D121 Terminology of Coal and Coke
3.1.3 British thermal unit [Btu]—is the amount of heat
D346 Practice for Collection and Preparation of Coke
required to raise the temperature of one pound - mass [lbm] of
Samples for Laboratory Analysis
liquid water at one atmosphere pressure one degree Fahrenheit
D388 Classification of Coals by Rank
at a stated temperature.The results of combustion calorimetric
D1193 Specification for Reagent Water
testsoffuelsforsteampowerplantsmaybeexpressedinterms
D2013 Practice for Preparing Coal Samples for Analysis
of the 1956 International Steam Table calorie (I.T. cal) which
D3173 TestMethodforMoistureintheAnalysisSampleof
is defined by the relation, 1 I.T. cal = 4.1868 J. The Btu used
Coal and Coke
in modern steam tables is defined by the means of the relation,
D3177 Test Methods for Total Sulfur in the Analysis
1I.T.cal/g=1.8I.T.Btu/lb. Thus, 1 I.T. Btu / lb = 2.326 J
Sample of Coal and Coke
/g.
D3180 Practice for Calculating Coal and Coke Analyses
3.1.4 calorific value—theheatproducedbycombustionofa
from As-Determined to Different Bases
unit quantity of a substance under specified conditions.
D4239 Test Methods for Sulfur in the Analysis Sample of
3.1.5 calorimeter—a device for measuring calorific value
Coal and Coke Using High-Temperature Tube Furnace
consisting of a bomb, its contents, a vessel for holding the
Combustion Methods
bomb, temperature measuring devices, ignition leads, water,
D5142 Test Methods for ProximateAnalysis of theAnaly-
stirrer, and a jacket maintained at specified temperature con-
sis Sample of Coal and Coke by Instrumental Procedures
ditions.
E144 Practice for Safe Use of Oxygen Combustion Bombs
3.1.6 gross calorific value (gross heat of combustion at
constant volume), Q (gross)—the heat produced by complete
v
combustion of a substance at constant volume with all water
1
This test method is under the jurisdiction of ASTM Committee D05 on Coal
formed condensed to a liquid.
and Coke and is the direct responsibility of Subcommittee D05.21 on Methods of
3.1.7 heat of formation—the change in heat content result-
Analysis.
ing from the formation of 1 mole of a substance from its
Current edition approved Nov. 1, 2007. Published November 2007. Originally
approved in 1995. Last previous edition approved in 2007 as D5865–07.
elements at constant pressure.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.1.8 isoperibol calorimeter—a calorimeter that operates in
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
the isoperibol mode and uses a microprocssor to record the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. initialandfinaltemperaturesandmaketheappropiateheatleak
*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.
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D 5865 – 07a
correctionsduringthetemperaturerise.Itdetermineswhenthe 6.3 Balance—Alaboratorybalancecapableofweighingthe
calorimeter is in equilibrium and ignites the sample and analysis sample to the ne
...
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: D 5865 – 07
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 (e) 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 Methods for Sulfur in theAnalysis Sample of Coal and Coke Using High-TemperatureTube Furnace Combustion
Methods
D5142 Test Methods for Proximate Analysis of the Analysis Sample of Coal and Coke by Instrumental Procedures
E1 Specification for ASTM Liquid-in-Glass Thermometers
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
3. Terminology
3.1 Definitions:
3.1.1 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 automated calorimeter—acalorimeterwhichhasamicroprocessorthattakesthethermometricreadingsandcalculatesthe
Calibration Value and the Heat of Combustion Values.
3.1.3 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
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 calorific value—the heat produced by combustion of a unit quantity of a substance under specified conditions.
3.1.5 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 conditions.
3.1.6 gross calorific value (gross heat of combustion at constant volume), Q (gross)—the heat produced by complete
v
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.
Current edition approved July 15, 2007. Published August 2007. Originally approved in 1995. Last previous edition approved in 2003 as D5865–03a.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D5865–07
combustion of a substance at constant volume with all water formed condensed to a liquid.
3.1.7 heat of formation—the change in heat content resulting from the formation of 1 mole of a substance from its elements
at constant pressure.
3.1.8 isoperibol calorimeter—
...
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