Designation:F1186−03(Reapproved2013)StandardClassificationSystemforChemicalsAccordingtoFunctionalGroups1ThisstandardisissuedunderthefixeddesignationF1186;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisstandardprovidesaclassificationsystemforchemicalcompoundswherebychemicalsareassigneda3-digitcodebasedprimarilyonchemicalclass.2Poly-functionalcompoundsshouldbeclassifiedbyallapplicablecodenumbersassociatedwiththeircomponentfunctionalgroups.2.SignificanceandUse2.1Inmanysituationswherechemicalsareinteractingwithotherchemicalsormaterials,theinteractionisstronglydepen-dentandoftencorrelatedwiththefunctionalgroup(s)present.Theseinteractionsincludechemicalreaction,dissolution,andswelling/permeationofpolymericmaterials.Forthisreason,itisusefultohaveastandardmeansforclassifyingchemicals.2.2Oneapplicationforthisclassificationsystemisintheselectionofchemicalprotectiveclothingbasedonthechemicalresistanceoftheclothingmaterials.3,4,5Chemicalresistancedataareavailableforonlyaverysmallfractionofthechemicalsforwhichprotectiveclothingisused.However,forchemicalsforwhichnodataareavailable,aknowledgeofthechemicalclasssometimescangiveinsightintotheresistanceofaprospectiveclothingmaterial.NOTE1—Thepresentstateofknowledgeprecludesreliableestimatesfromchemicalclassalone.2.3Theclassificationsystemalsofacilitatesthedevelop-mentofpredictivemethodologybyresearchersinavarietyoffields,inadditiontoprotectiveclothing.3.Terminology3.1Definitions:3.1.1functionalgroup—theatomorgroupofatomsthatdefinesthechemicalclassofaparticularfamilyoforganiccompoundsand,atthesametime,determinestheirproperties.4.BasisofClassification4.1Three-digitnumberswereassignedtoeachclass.Themajorclassesgenerallywereamultipleof10(printedinboldtype),withsubclassesnumberedbetween.4.2SubcommitteeF23.30hasjur...
