Designation:D2171/D2171M−10StandardTestMethodforViscosityofAsphaltsbyVacuumCapillaryViscometer1ThisstandardisissuedunderthefixeddesignationD2171/D2171M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.Thistestmethodhasbeenapprovedbythesponsoringcommitteesandacceptedbythecooperatingsocietiesinaccordancewithestablishedprocedures.1.Scope1.1Thistestmethodcoversproceduresforthedetermina-tionofviscosityofasphaltbinder(bitumen)byvacuumcapillaryviscometersat60°C[140°F].Itisapplicabletomaterialshavingviscositiesintherangefrom0.0036toover20000Pa·s[0.036toover200000P].NOTE1—Thistestmethodissuitableforuseatothertemperatures,buttheprecisionisbasedondeterminationsonasphaltbindersat60°C[140°F].1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Warning—MercuryhasbeendesignatedbytheUnitedStatesEnvironmentalProtectionAgency(EPA)andmanystateagenciesasahazardousmaterialthatcancausecentralnervoussystem,kidneyandliverdamage.Mercury,oritsvapor,maybehazardoustohealthandcorrosivetomaterials.Cautionshouldbetakenwhenhandlingmercuryandmercurycontainingproducts.SeetheapplicableproductMaterialSafetyDataSheet(MSDS)fordetailsandEPA’swebsite—http://www.epa.gov/mercury/faq.htm—foradditionalinformation.Usersshouldbeawarethatsellingmercury,mercury-containingproducts,orboth,intoyourstatemaybeprohibitedbystatelaw.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddetermin...