Designation:D2669−16StandardTestMethodforApparentViscosityofPetroleumWaxesCompoundedwithAdditives(HotMelts)1ThisstandardisissuedunderthefixeddesignationD2669;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationoftheappar-entviscosityofpetroleumwaxescompoundedwithadditives(hotmelts).Itappliestofluidhotmeltshavingapparentviscositiesuptoabout20Pa·sattemperaturesupto175°C(347°F).NOTE1—Forpetroleumwaxesandtheirblendshavinglowapparentviscosities,belowabout15mPa·s,TestMethodD445,isespeciallyapplicable.1.2ThevaluesstatedinSIunitsshallberegardedasthestandard.1.2.1Exception—Alternativeunitsinparenthesesareforinformationpurposesonly.NOTE2—OnePascalsecond(Pa·s)=1000centipoises(cP).Onemilli-Pascalsecond(mPa·s)=1centipoise(cgsunits).1.3WARNING—Mercuryhasbeendesignatedbymanyregulatoryagenciesasahazardousmaterialthatcancausecentralnervoussystem,kidneyandliverdamage.Mercury,oritsvapor,maybehazardoustohealthandcorrosivetomaterials.Cautionshouldbetakenwhenhandlingmercuryandmercurycontainingproducts.SeetheapplicableproductMa-terialSafetyDataSheet(MSDS)fordetailsandEPA’swebsite—http://www.epa.gov/mercury/faq.htm—foraddi-tionalinformation.Usersshouldbeawarethatsellingmercuryand/ormercurycontainingproductsintoyourstateorcountrymaybeprohibitedbylaw.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D445TestMethodforKinematicViscosityofTransparentandOpaqueLiquids(andCalculationofDynamicViscos-ity)3.Terminology3.1Definitions:3.1.1viscosity,n—theratioofshearstresstoshearrate.Viscosityofaliquidisameasur...
