ASTM_D_2015_-_00.pdf

Designation:D 2015 00Standard Test Method forGross Calorific Value of Coal and Coke by the AdiabaticBomb Calorimeter1This standard is issued under the fixed designation D 2015;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 This test method covers the determination of the grosscalorific value of coal and coke by the adiabatic bombcalorimeter.1.2 The values stated in SI units and British thermal unitsare to be regarded as the standard.The values given inparentheses are for information only.1.3 This standard does not purport to address the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.For specific hazard statements seeSection 8.1.4 All accountability and quality control aspects of GuideD 4621 apply to this standard.2.Referenced Documents2.1 ASTM Standards:D 121 Terminology of Coal and Coke2D 346 Practice for Collection and Preparation of CokeSamples for Laboratory Analysis2D 1193 Specification for Reagent Water3D 2013 Method of Preparing Coal Samples for Analysis2D 3173 Test Method for Moisture in theAnalysis Sample ofCoal and Coke2D 3177 Test Method for Total Sulfur in theAnalysis Sampleof Coal and Coke2D 3180 Practice for Calculating Coal and Coke Analysesfrom As-Determined to Different Bases2D 4239 Test Method for Sulfur in the Analysis Sample ofCoal and Coke Using High Temperature Tube FurnaceCombustion Methods2D 4621 Guide for Quality Management in an Organizationthat Samples or Tests Coal and Coke2E 1 Specification for ASTM Thermometers4E 144 Practice for Safe Use of Oxygen CombustionBombs53.Terminology3.1 Definitions:3.1.1 calorific value,nthe heat produced by combustionof a unit quantity of a substance under specified conditions.3.1.1.1 DiscussionIt is expressed in this test method inBritish thermal units per pound(Btu/lb).Calorific value mayalso be expressed in calories per gram(cal/g)or in theInternational System of Units(SI),joules per gram(J/g),whenrequired.The unit equivalents are given in Table 1.3.1.2 gross calorific value(gross heat of combustion atconstant volume)Qv(gross)see Terminology D 121.3.1.3 net calorific value(net heat of combustion at constantpressure)Qp(net)see Terminology D 121.3.1.4 calorimeteras used in this test method,consists ofthe bomb and its contents,the calorimeter vessel(bucket)withstirrer,the water in which the bomb is immersed,and theportions of the thermometer and the ignition leads within thecalorimeter vessel.3.2 Definitions of Terms Specific to This Standard:3.2.1 corrected temperature risethe temperature changeof the calorimeter caused by the process that occurs inside thebomb,that is,the observed temperature change corrected forvarious effects as noted in 10.4.1.NOTE1Temperature is measured in either degrees Celsius or degreesFahrenheit.Thermometer corrections should be applied.Temperaturesmay be recorded in ohms or other arbitrary units instead of degrees.Consistent units must be used in standardization and the actual calorificvalue determination.If arbitrary units other than degrees Celsius orFahrenheit are used,the temperature interval over which all tests aremade,must not vary so much that an error greater than 0.001C would becaused.3.2.2 energyequivalent,heatcapacity,orwaterequivalentthe energy required to raise the temperature of thecalorimeter one arbitrary unit.This is the quantity that,whenmultiplied by the corrected temperature rise,then adjusted forextraneous heat effects,and divided by the mass of the sample,gives the gross calorific value.NOTE2Energy units for quantities listed throughout this test method1This test method is under the jurisdiction ofASTM Committee D-5 on Coal andCoke and is the direct responsibility of Subcommittee D05.21 on Methods ofAnalysis.Current edition approved April 10,2000.Published July 2000.Originallypublished as D 2015 62 T.Last previous edition D 2015 96.2Annual Book of ASTM Standards,Vol 05.063Annual Book of ASTM Standards,Vol 11.01.4Annual Book of ASTM Standards,Vol 14.03.5Annual Book of ASTM Standards,Vol 14.02.1Copyright ASTM,100 Barr Harbor Drive,West Conshohocken,PA 19428-2959,United States.are such that the number of energy units per gram of sample correspondsexactly to the number of British thermal units per pound of sample.Forbrevity,these are referred to as British thermal units.The actual energiesare smaller than those stated by the ratio of the number of pounds per gram(1/453.59).The energy equivalent of the calorimeter has the units(Britishthermal units per pound)times(grams per degree).Conversion to othe