Designation:A976−18StandardClassificationofInsulatingCoatingsforElectricalSteelsbyComposition,RelativeInsulatingAbilityandApplication1ThisstandardisissuedunderthefixeddesignationA976;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisdocumentclassifiesinsulatingcoatingsforelectri-calsteelsaccordingtotheircomposition,relativeinsulatingability,andfunctionality.Thepurposeofthisclassificationistoassistusersofinsulatingcoatingsbyprovidinggeneralinfor-mationaboutthechemicalnatureanduseofthecoatings,aswellastoprovideimportantdataconcerninglimitstotheiruse,thatis,relativeinsulatingability,punchability,temperaturestability,weldability,andfabricability.Specificsurfaceinsula-tionresistivityvaluesforeachcoatingarenotincludedinthisclassification.Theuserisreferredtotheflat-rolledelectricalsteelspecificationsnotedin1.2shouldmoredetailedinforma-tionconcerningsurfaceinsulationresistivityvaluesbere-quired.1.2Thisclassificationistobeusedinconjunctionwiththevariousspecificationsforflat-rolledelectricalsteelsunderthejurisdictionofCommitteeA06,includingSpecificationsA345,A677,A683,A726,A840,A876,andA1086.However,inthoseinstancesinwhichthecoatingdescriptionsandcharac-teristicsdifferbetweenthisclassificationandanyofthespecifications,thisclassificationshallsupersedethespecifica-tion.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesaremathematicalconversionstocustomary(cgs-emuandinch-pound)unitswhichareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdev...
