1、Designation:D486(Reapproved 2018)Standard Test Method forBitumen Content1This standard is issued under the fixed designation D4;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicate
2、s the year of last reapproval.Asuperscriptepsilon()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standard has been approved for use by agencies of the U.S.Department of Defense.Although this test method was withdrawn by the Society in June 1966 at the request of Committee
3、D04,the Committee onStandards has approved its reinstatement under the jurisdiction of Committee D08 on the basis that Procedure No.2 still applies totheir interest.Procedure No.1 has been replaced by Method D 2042,Test for Solubility of Asphalt Materials in Trichloroethylene.1.Scope1.1 This test me
4、thod covers the determination of bitumencontent in materials containing at least 25%bitumen.Bitumencontent may usually be expeditiously and accurately deter-mined by Procedure No.1,Section 7.However,some bitumi-nous materials containing finely divided mineral matter mayclog the filter or the mineral
5、 residue may not be easily retained,in which cases Procedure No.2,Section 8,shall be followed.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This standard does not purport to address all of thesafety concerns,if any,asso
6、ciated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability and regulatory limitations prior to use.For specific precautionary information,see Section 4.1.4 This international standard w
7、as developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced
8、Documents2.1 ASTM Standards:2D370/D370M Practice for Dehydration of Oil-Type Preser-vativesE177 Practice for Use of the Terms Precision and Bias inASTM Test Methods3.Apparatus,Reagents,and Materials3.1 Filtering Crucible,porcelain,high-form,25-to 40-mLcapacity,with fine-porosity bottom,7-m maximum p
9、orosity.NOTE1Selas grade 01,size FC 30 or FC 40,or equivalent.Availablefrom various laboratory supply houses.3.2 Celite Analytical Filter Aid(CAFA),dried to constantmass at 105C and stored in a tightly stoppered container.NOTE2Use Celite 211 or Celite 505.3.3 BeakersOne 30-mL beaker,Griffin low-form
10、,and one150-mL beaker,Griffin low-form.3.4 Carbon Disulfide,cp.NOTE3For filled asphaltic materials,trichloroethylene may bedirectly substituted for carbon disulfide if desired.However,carbondisulfide shall be used in referee testing.3.5 Filtering Flask,with crucible adapter.3.6 Drying Oven.3.7 Bunse
11、n Burner or Muffle Furnace.3.8 Suction Pump.3.9 Analytical Balance.3.10 Desiccator.3.11 Evaporating Dish.3.12 Watch Glasses.4.Safety Precautions4.1 Carbon disulfide is extremely flammable.The vapor willoften ignite spontaneously on contact with a hot surface such asa hot plate,oven,or radiator.When
12、using this solvent,be surethat the filtration is conducted under a hood and well awayfrom flame or other sources of heat.Before placing crucibles orother containers in the oven,all traces of carbon disulfideshould be removed(as indicated by the disappearance of allodor).Otherwise,the vapors will ign
13、ite.Carbon disulfide isalso very irritating to the skin and direct contact should beavoided.1This test method is under the jurisdiction ofASTM Committee D08 on Roofingand Waterproofing and is the direct responsibility of Subcommittee D08.03 onSurfacing and Bituminous Materials for Membrane Waterproo
14、fing and Built-upRoofing.Current edition approved May 1,2018.Published June 2018.Originallyapproved in 1911.Last previous edition approved in 2010 as D4 86(2010).DOI:10.1520/D0004-86R18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.
15、org.For Annual Book of 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 StatesThis international standard was developed in accordance with internation
16、ally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 5.Preparation of Sample5.1 The sample shall be representative,and if it containsmore than 2%of water it shall be dehydrated in accordancewith Test Method D370/D370M.If the material is hard andbrittle,it may be ground and dried at a temperature below thetem
