1、Designation:D70/D70M21Standard Test Method forSpecific Gravity and Density of Semi-Solid Asphalt Binder(Pycnometer Method)1This standard is issued under the fixed designation D70/D70M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,t
2、he year of last revision.A number in parentheses indicates the year of last reapproval.A superscript 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 t
3、he determination of the specificgravity(relative density)and density of semi-solid asphaltbinder by use of a pycnometer.NOTE1An alternate method for determining the specific gravity ordensity of asphalt binder is Test Method D3289.An alternate method fordetermining density of asphalt binder is Test
4、Method D8188.For materialswhich are too fluid for use of this test method,use Test MethodD3142/D3142M.NOTE2This test method may also be used for the determination of thespecific gravity(relative density)and density of soft tar pitches.1.2 The values stated in either SI units or inch-pound unitsare t
5、o be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in nonconformancewith the standard.1.3 WarningMercury has been designated by the UnitedState
6、s Environmental ProtectionAgency(EPA)and many stateagencies as a hazardous material that can cause central nervoussystem,kidney,and liver damage.Mercury,or its vapor,maybe hazardous to health and corrosive to materials.Cautionshould be taken when handling mercury and mercury-containing products.See
7、the applicable product MaterialSafety Data Sheet(MSDS)or Safety Data Sheet(SDS)fordetails and the EPAs website(www.epa.gov/mercury/faq.htm)for additional information.Users should be aware that sellingmercury,mercury-containing products,or both,in your statemay be prohibited by state law.1.4 The text
8、 of this standard references notes and footnoteswhich provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements of the standard.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its
9、 use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principle
10、s 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 Documents2.1 ASTM Standards:2C670 Practice for Preparing Precision an
11、d Bias Statementsfor Test Methods for Construction MaterialsD140/D140M Practice for Sampling Asphalt MaterialsD3142/D3142M Test Method for Specific Gravity,APIGravity,or Density of Cutback Asphalts by HydrometerMethodD3289 Test Method for Density of Semi-Solid and SolidAsphalt Materials(Nickel Cruci
12、ble Method)D3666 Specification for Minimum Requirements for Agen-cies Testing and Inspecting Road and Paving MaterialsD4311/D4311M Practice for Determining Asphalt VolumeCorrection to a Base TemperatureD8188 Test Method for Determination of Density and Rela-tive Density ofAsphalt,Semi-Solid Bitumino
13、us Materials,and Soft-Tar Pitch by Use of a Digital Density Meter(U-Tube)E1 Specification for ASTM Liquid-in-Glass ThermometersE77 Test Method for Inspection and Verification of Ther-mometersE563 Practice for Preparation and Use of an Ice-Point Bathas a Reference TemperatureE644 Test Methods for Tes
14、ting Industrial Resistance Ther-mometers1This test method is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.47 onMiscellaneous Asphalt Tests.Current edition approved Jan.1,2021.Published February 2021.Originallyapproved i
15、n 1920.Last previous edition approved in 2018 as D70 18a.DOI:10.1520/D0070_D0070M-21.2For 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
16、onthe ASTM website.*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 StatesThis international standard was developed in accordance with internationally 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)Comm
