1、Designation:D12115Standard Terminology ofCoal and Coke1This standard is issued under the fixed designation D121;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 l
2、ast reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This terminology defines the technical terms used instandards that are the responsibility of Committee D05 on Coaland Coke.The terms are used in:1.1.1 The sampling of coal and coke und
3、er conditionsrequired for most commercial and technical purposes related tocoal and coke.1.1.2 Bias and related statistical testing,1.1.3 The description of coal,both visually in the field andmicroscopically in the laboratory,1.1.4 Chemical and physical analyses of coal and coke,1.1.5 Classification
4、 of coal,and1.1.6 Certain other related practices and guides applicableto the coal and coke industries.2.Referenced Documents2.1 ASTM Standards:2D388 Classification of Coals by RankD1412 Test Method for Equilibrium Moisture of Coal at 96to 97 Percent Relative Humidity and 30CD1857 Test Method for Fu
5、sibility of Coal and Coke AshD2013 Practice for Preparing Coal Samples for AnalysisD2234/D2234M Practice for Collection of a Gross Sampleof CoalD2639 Test Method for Plastic Properties of Coal by theConstant-Torque Gieseler PlastometerD2798 Test Method for Microscopical Determination of theVitrinite
6、 Reflectance of CoalD3172 Practice for Proximate Analysis of Coal and CokeD3173 Test Method for Moisture in the Analysis Sample ofCoal and CokeD3174 Test Method for Ash in the Analysis Sample of Coaland Coke from CoalD3175 Test Method for Volatile Matter in the AnalysisSample of Coal and CokeD3176 P
7、ractice for Ultimate Analysis of Coal and CokeD3180 Practice for Calculating Coal and Coke Analysesfrom As-Determined to Different BasesD3302 Test Method for Total Moisture in CoalD4371 Test Method for Determining the Washability Char-acteristics of CoalD4749 Test Method for Performing the Sieve Ana
8、lysis ofCoal and Designating Coal SizeD5061 Test Method for Microscopical Determination of theTextural Components of Metallurgical CokeD5114 Test Method for Laboratory Froth Flotation of Coalin a Mechanical CellD5192 Practice for Collection of Coal Samples from CoreD5263 Test Method for Determining
9、the Relative Degree ofOxidation in Bituminous Coal by Alkali ExtractionD5515 Test Method for Determination of the SwellingProperties of Bituminous Coal Using a DilatometerD5865 Test Method for Gross Calorific Value of Coal andCokeD6316 Test Method for Determination of Total,Combustibleand Carbonate
10、Carbon in Solid Residues from Coal andCokeD7430 Practice for Mechanical Sampling of CoalD7582 Test Methods for Proximate Analysis of Coal andCoke by Macro Thermogravimetric Analysis3.Terminologyair-dried moisturethis term has been used inappropriatelyto refer to both residual moisture and air-dry lo
11、ss.Because ofthe potential for confusion,this term shall not be used.air drying,na process of partial drying of coal to bring itsmoisture near to equilibrium with the atmosphere in theroom in which further reduction and division of the samplewill take place.air-dry loss,n in coal,the loss in mass,ex
12、pressed as apercentage,resulting from each air-drying stage or the sumof all sequential air-drying stages in which the results fromeach stage are adjusted to the as-received basis.DISCUSSIONAir-dry loss is neither a standard state nor a character-istic property of a coal.Air drying only removes wate
13、r that canevaporate at or near ambient laboratory conditions,leaving in the coalsome fraction of the inherent moisture that is more tightly bound in the1This terminology is under the jurisdiction of ASTM Committee D05 on Coaland Coke and is the direct responsibility of Subcommittee D05.24 on Statist
14、ics.Current edition approved Sept.1,2015.Published September 2015.Originallyapproved in 1921.Last previous edition approved in 2009 as D121 09A.DOI:10.1520/D0121-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book o
15、f ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 pores(residual moisture).Different laboratory environments or differ-ent drying temperature
16、s or both will result in significant differences inair-dry loss and residual moisture.D3302agglomerating,adjas applied to coal,the property ofsoftening when it is heated to above about 400 C in anonoxidizing atmosphere,and then appearing as a coherentmass after cooling to room temperature.alginiteSee alginite under maceral.analysis sampleSee analysis sample under sample.angle of repose,nthe greatest angle,measured fromhorizontal,attained by a coal so that material on the sides ortop of the inver