ASTM_D_2170_-_D_2170M_-_10.pdf

Designation:D2170/D2170M10Designation:319/84(89)Standard Test Method forKinematic Viscosity of Asphalts(Bitumens)1This standard is issued under the fixed designation D2170/D2170M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers procedures for the determina-tion of kinematic viscosity of liquid asphalts(bitumens),roadoils and distillation residues of liquid asphalts(bitumens)all at60C 140F and of asphalt cements at 135C 275F(Note1)in the range from 6 to 100 000 mm2/s cSt.1.2 Results of this test method can be used to calculateviscosity when the density of the test material at the testtemperature is known or can be determined.See Annex A1 forthe method of calculation.NOTE1This test method is suitable for use at other temperatures andat lower kinematic viscosities,but the precision is based on determinationson liquid asphalts and road oils at 60C 140F and on asphalt cementsat 135C 275F only in the viscosity range from 30 to 6000 mm2/s cSt.1.3 WarningMercury has been designated by UnitedStates Environmental ProtectionAgency(EPA)and many stateagencies as a hazardous material that can cause central nervoussystem,kidney and liver damage.Mercury,or its vapor,may behazardous to health and corrosive to materials.Caution shouldbe taken when handling mercury and mercury containingproducts.See the applicable product Material Safety DataSheet(MSDS)for details and EPAs websitehttp:/www.epa.gov/mercury/faq.htmfor additional information.Users should be aware that selling mercury,mercury contain-ing products,or both,in your state may be prohibited by statelaw.1.4 The values stated in either SI units or inch-pound unitsare to 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 non-conformancewith the standard.1.5 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 standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsD92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD341 Practice for Viscosity-Temperature Charts for LiquidPetroleum ProductsD445 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids(and Calculation of Dynamic Viscos-ity)D446 Specifications and Operating Instructions for GlassCapillary Kinematic ViscometersD2162 Practice for Basic Calibration of Master Viscometersand Viscosity Oil StandardsD2493 Standard Viscosity-Temperature Chart for AsphaltsE1 Specification for ASTM Liquid-in-Glass ThermometersE77 Test Method for Inspection and Verification of Ther-mometers3.Terminology3.1 Definitions:3.1.1 densitythe mass per unit volume of liquid.The SIunit of density is 1 kg/m3.The cgs unit of density is 1 g/cm3.3.1.2 kinematic viscositythe ratio of the viscosity to thedensity of a liquid.It is a measure of the resistance to flow ofa liquid under gravity.The SI unit of kinematic viscosity ism2/s;for practical use,a submultiple(mm2/s)is more conve-nient.The cgs unit of kinematic viscosity is 1 cm2/s and iscalled a stoke(symbol St).The centistoke(1 cSt=102St)is1 mm2/s and is often used.3.1.3 Newtonian liquida liquid in which the rate of shearis proportional to the shearing stress.The constant ratio of the1This test method is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.44 onRheological Tests.In the IP this test method is under the jurisdiction of theStandardization Committee.Current edition approved June 1,2010.Published August 2010.Originallyapproved in 1963.Last previous edition approved in 2007 as D2170 07.DOI:10.1520/D2170-10.2For 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 onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 shearing stress to the rate of shear is the viscosity of the liquid.If the ratio is not constant,the liquid is non-Newtonian.3.1.4 viscositythe ratio between the applied shear stressand rate of shear is called the coefficient of viscosity.Thiscoefficient is a measure of the resistance to flow of a liquid.Itis commonly called the viscosity of the liquid.The cgs unit ofviscosity is 1 g/cms(1 dynes/cm2)and is called