Designation:D706−15StandardClassificationSystemandBasisforSpecificationsforCelluloseAcetateMoldingandExtrusionCompounds(CA)1ThisstandardisissuedunderthefixeddesignationD706;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thisclassificationsystemcoversrequirementsforcel-luloseacetatethermoplasticcompoundsplasticizedwitheitherdiethylphthalateordimethylphthalateandaresuitableforinjectionmoldingandextrusion.Thesecompoundshaveanacetylcontentbetween39and40%.Itdoesnotincludematerialscompoundedforspecialapplication.Cellulosicplas-ticmaterials,beingthermoplastic,arereprocessableandrecy-clable.Thisclassificationsystemallowsfortheuseofthosecellulosicmaterials,providedthatallspecificrequirementsofthisclassificationsystemaremet.1.2Thepropertiesincludedinthisclassificationsystemarethoserequiredtoidentifythecompositionscovered.OtherrequirementsnecessarytoidentifyparticularcharacteristicsimportanttospecializedapplicationsarespecifiedbyusingthesuffixesasgiveninSection5.1.3Thisclassificationsystemandsubsequentlinecallout(specification)areintendedtoprovideameansofcallingoutplasticmaterialsusedinthefabricationofenditemsorparts.Itisnotintendedfortheselectionofmaterials.Materialselectioncanbemadebythosehavingexpertiseintheplasticfieldonlyaftercarefulconsiderationofthedesignandperfor-mancerequiredofthepart,environmenttowhichitwillbeexposed,fabricationprocesstobeemployed,costsinvolved,andinherentpropertiesofthematerialotherthanthosecoveredbythisclassificationsystem.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.1.5Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodportion,Section11,ofthisclassificationsystem.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithi...
