Designation:D2124−99(Reapproved2011)StandardTestMethodforAnalysisofComponentsinPoly(VinylChloride)CompoundsUsinganInfraredSpectrophotometricTechnique1ThisstandardisissuedunderthefixeddesignationD2124;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodprovidesfortheidentificationofcertainresins,plasticizers,stabilizers,andfillersinpoly(vinylchloride)(PVC)compoundsbyaninfraredspectrophotometrictechnique.Inmanycases,individualcomponentsmaybemeasuredquantitatively.Complementaryprocedures,suchaschromatographicandotherseparations,willbenecessarytoseparatespecificcomponentsandextendtheapplicationsofthistestmethod.Otherinstrumentaltestmethods,suchasopticalemissionorX-rayspectroscopicmethods,mayyieldcomplementaryinformationwhichmayallowmorecompleteor,insomecases,easiermeasurementofthecomponents.Theresincomponentscoveredinthistestmethodarelistedintheappendix.1.2PVCformulationsaretoovariedtobecoveredad-equatelybyasingletestmethod.Usingthefollowingtestmethod,manycompoundsmaybeseparatedintoresins,plasticizers,stabilizers,andfillers.Anumberofcomponentscanbequantitativelymeasured.Manymorecanbeidentifiedandtheirconcentrationsestimated.Bytheuseofpreparedstandards,onemaydeterminetheusefulnessandaccuracyofthetestmethodforspecificPVCformulations.Thistestmethodisapplicablefortheresincomponentslistedintheappendixandforothercomponentshavingsimilarchemicalcompositionsandsolubilitycharacteristics.Thistestmethodcanleadtoerrorincaseswherethenatureofthecomponentsisnotknown.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinbracketsaregivenforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminethe...
