Designation:D1739−98(Reapproved2010)StandardTestMethodforCollectionandMeasurementofDustfall(SettleableParticulateMatter)1ThisstandardisissuedunderthefixeddesignationD1739;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversaprocedureforcollectionofdustfallanditsmeasurement.Thistestmethodisnotappro-priatefordeterminationofthedustfallrateinsmallareasaffectedbyspecificsources.Thistestmethoddescribesdeter-minationofbothwater-solubleandinsolubleparticulatemat-ter.1.2Thistestmethodisinappropriateforindustrialhygieneuseexceptwhereothermorespecificmethodsarealsoused.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2B57SpecificationforCopper-AlloyCondenserTubePlates;ReplacedbyB171(Withdrawn1941)3D1193SpecificationforReagentWaterD1356TerminologyRelatingtoSamplingandAnalysisofAtmospheresE11SpecificationforWovenWireTestSieveClothandTestSievesIEEE/ASTMSI-10AmericanNationalStandardforUseoftheInternationalSystemofUnits(SI):TheModernMetricSystem3.Terminology3.1Definitions—Fordefinitionsoftermsusedinthistestmethod,refertoTerminologyD1356.Anexplanationofunits,symbols,andconversionfactorsmaybefoundinPracticeE380.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1settleableparticulatematerial—anymaterialcom-posedofparticlessmallenoughtopassthrougha1-mmscreen(seeSpecificationE11)andlargeenoughtosettlebyvirtueoftheirweightintothecontainerfromtheambientair.4.SummaryofTestMethod4.1Containersofastandardsizeandshapearepreparedan...
