Designation:D3050−07(Reapproved2015)StandardGuideforMeasuringSoilRemovalfromArtificiallySoiledFabrics(NotSuitableforDetergentRanking)1ThisstandardisissuedunderthefixeddesignationD3050;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisisaguideformeasuringtheabilityofdetergentstoremoveartificiallyappliedsoilsfromfabrics.Itisintendedasalaboratoryscreeningtesttoaidintheformulationofdetergentproducts,forqualitycontrolandasabasisbetweenthepurchaserandsellerinstandardizingspecificproducts’performance.1.2Therelativerankingofdetergentproductswillvarygreatlydependingonthetypeofsoiledfabricsusedinthetest.Therefore,selectionofthestandardsoiledfabrictobeusedinatestshallbemadebyagreementbetweentheinterestedpartiesonthebasisofexperience.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterD2960GuideforControlledLaunderingTestUsingNatu-rallySoiledFabricsandHouseholdAppliances(With-drawn2013)33.SummaryofGuide3.1Soiledfabricswatchesarewashedinalaboratorywasherusingtheproductsbeingtestedandthechangeinreflectanceismeasured.4.SignificanceandUse4.1Theguide,asnowconstituted,isnotsuitableforrankingofdetergentproductssincenobasisisavailableatthistimeforcorrelationofthedetergencyperformanceofanyparticularsoiledclothorclotheswithdetergencyofnaturallysoiledarticles.4.2AsuggestedprocedureforcomparingtheperformanceofanytwolaundrydetergentsonnaturallysoiledfamilyitemsinhomelaundryequipmentundercontrolledconditionsonapairedcomparisonbasisisdescribedinMethodD2960.5.Apparatus5.1LaboratoryWasher—Alaboratoryscaleagitator-t...
