1、Designation:D453015Standard Test Method forDetermination of Carbon Residue(Micro Method)1This standard is issued under the fixed designation D4530;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
2、parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This test method covers the determination of the amountof carbo
3、n residue(see Note 1)formed after evaporation andpyrolysis of petroleum materials under certain conditions andis intended to provide some indication of the relative cokeforming tendency of such materials.1.2 The test results are equivalent to the Conradson CarbonResidue test(see Test Method D189).NO
4、TE1This procedure is a modification of the original method andapparatus for carbon residue of petroleum materials,where it has beendemonstrated that thermogravimetry is another applicable technique.2However,it is the responsibility of the operator to establish operatingconditions to obtain equivalen
5、t results when using thermogravimetry.1.3 This test method is applicable to petroleum products thatpartially decompose on distillation at atmospheric pressure andwas tested for carbon residue values of 0.10%to 30%(m/m).Samples expected to be below 0.10 weight%(m m)residueshould be distilled to remov
6、e 90%(V/V)of the flask charge(see Section 9).The 10%bottoms remaining is then tested forcarbon residue by this test method.1.4 Ash-forming constituents,as defined by Test MethodD482,or non-volatile additives present in the sample will addto the carbon residue value and be included as part of the tot
7、alcarbon residue value reported.1.5 Also in diesel fuel,the presence of alkyl nitrates,such asamyl nitrate,hexyl nitrate,or octyl nitrate,causes a highercarbon residue value than observed in untreated fuel,whichmay lead to erroneous conclusions as to the coke-formingpropensity of the fuel.The presen
8、ce of alkyl nitrate in the fuelmay be detected by Test Method D4046.1.6 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.6.1 Exception6.4 and 6.5 include inch-pound units.1.7 WARNINGMercury has been designated by manyregulatory
9、agencies as a hazardous material that can causecentral nervous system,kidney and liver damage.Mercury,orits vapor,may be hazardous to health and corrosive tomaterials.Caution should be taken when handling mercury andmercury containing products.See the applicable product Ma-terial Safety Data Sheet(M
10、SDS)for details and EPAswebsitehttp:/www.epa.gov/mercury/faq.htmfor addi-tional information.Users should be aware that selling mercuryand/or mercury containing products into your state or countrymay be prohibited by law.1.8 This standard does not purport to address all of thesafety concerns,if any,a
11、ssociated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety practices and to determine the applicability ofregulatory limitations prior to use.For specific warningstatements,see 8.2.3 and 8.4.2.Referenced Documents2.1 ASTM Standards:3D189 Test Method
12、for Conradson Carbon Residue of Petro-leum ProductsD482 Test Method for Ash from Petroleum ProductsD4046 Test Method for Alkyl Nitrate in Diesel Fuels bySpectrophotometryD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4177 Practice for Automatic Sampling of Petroleum andPetrole
13、um ProductsE1 Specification for ASTM Liquid-in-Glass ThermometersE133 Specification for Distillation Equipment2.2 Energy Institute Standard:Specification for IP Standard Thermometers43.Terminology3.1 Definitions:1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,L
14、iquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.06 on Analysis of Liquid Fuels and Lubricants.Current edition approved June 1,2015.Published June 2015.Originallyapproved in 1985.Last previous edition approved in 2011 as D4530 11.DOI:10.1520/D4530-115.2See Fuel,Vol 63,J
15、uly 1984,pp.931934.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.4“Methods for Analysis and Testing,”Institute o
16、f Petroleum Standard Methodsfor Petroleum and Its Products,Part I,Vol 2.Available from Energy Institute,61New Cavendish St.,London,WIM 8AR,UK.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.1 carbon residue,nthe residue formed by evaporationand thermal degradation of a carbon containing material.3.1.1.1 DiscussionThe residue is not composed entirely ofcarbon but is a
