1、Designation:D818818Standard Test Method forDetermination of Density and Relative Density of Asphalt,Semi-Solid Bituminous Materials,and Soft-Tar Pitch by Useof a Digital Density Meter(U-Tube)1This standard is issued under the fixed designation D8188;the number immediately following the designation i
2、ndicates 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()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the determination of t
3、he relativedensity and density of semi-solid asphalt materials,asphaltbinders,asphalt cements,and soft-tar pitches by use of a digitaldensity meter(U-tube).NOTE1Alternate methods for determining the density of semi-solidand solid asphalt materials and asphalt binders include Test MethodsD3289,D3142/
4、D3142M,and D70.1.2 The values stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.No other units of measurement are included in thisstandard,with the exception of temperature measurements.Units provided in degrees Fahrenheit are for reference pur-
5、poses only.Temperatures given in degrees Celsius are to beconsidered standard.1.3 The between-laboratory reproducibility of this testmethod is being determined and will be available on or beforeJune 2021.Therefore,this standard should not be used foracceptance or rejection of a material for purchasi
6、ng purposes.1.4 This test method should not be applied to petroleumdistillates other than asphalt and asphalt binders.For thedetermination of density of all other petroleum distillates andviscous oils,use Test Method D4052 or D5002,or ISO 12185.1.5 The text of this standard references notes and foot
7、noteswhich provide explanatory material.These footnotes(exclud-ing those in tables and figures)shall not be considered asrequirements of the standard.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this sta
8、ndard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on
9、 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:2D8 Terminology Relating to Materials for Roads and Pave-mentsD70 Test Method for Density of
10、Semi-Solid Asphalt Binder(Pycnometer Method)D140/D140M Practice for Sampling Asphalt MaterialsD287 Test Method for API Gravity of Crude Petroleum andPetroleum Products(Hydrometer Method)D1250 Guide for Use of the Petroleum Measurement TablesD1298 Test Method for Density,Relative Density,or APIGravit
11、y of Crude Petroleum and Liquid Petroleum Prod-ucts by Hydrometer MethodD3142/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 Crucible Method)D3666 Specification for Min
12、imum Requirements for Agen-cies Testing and Inspecting Road and Paving MaterialsD4052 Test Method for Density,Relative Density,and APIGravity of Liquids by Digital Density MeterD4311/D4311M Practice for Determining Asphalt VolumeCorrection to a Base TemperatureD5002 Test Method for Density and Relat
13、ive Density ofCrude Oils by Digital Density AnalyzerD6792 Practice for Quality Management Systems in Petro-leum Products,Liquid Fuels,and Lubricants TestingLaboratoriesD7578 Guide for Calibration Requirements for ElementalAnalysis of Petroleum Products and Lubricants1This test method is under the ju
14、risdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.47 onMiscellaneous Asphalt Tests.Current edition approved July 1,2018.Published July 2018.Originally approvedin 2018.DOI:10.1520/D8188-18.2For referenced ASTM standards,visit the ASTM we
15、bsite,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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis i
16、nternational 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)Committee.1 D7961 Practice for Calibrating U-tube Density Cells overLarge Ranges of Temperature and Pressure2.2 ISO Standard:3ISO 12185 Crude Petroleum and Petroleum ProductsDetermination of DensityOsci