Designation:D784–03AnAmericanNationalStandardStandardSpecificationforOrangeShellacandOtherIndianLacsforElectricalInsulation1ThisstandardisissuedunderthefixeddesignationD784;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverstherequirementsandmethodsoftestforthreetypesandfourgradesoforangeshellacandotherlacs,typicallyusedasbondingagentsformicasplittingsandreconstitutedmicapaperandascoatingforothermaterials,asfollows:1.1.1TypeI—OrangeFlakeShellac,GradesA,B,C,andD,1.1.2TypeII—ButtonLac,and1.1.3TypeIII—GarnetLac.1.2Stick-lacandseed-lacarenotcoveredbythisspecifica-tion.NOTE1—ISOSpecifications56–1and56–2covershellac.However,theequivalencyoftheISOspecificationtothisstandardisunknown.DirectreferencetotheISOstandardsmaybemadeifitisnecessarytodetermineequivalency.2.ReferencedDocuments2.1ASTMStandards:2D29TestMethodsforSamplingandTestingLacResinsD411TestMethodsforShellacUsedforElectricalInsula-tionD1711TerminologyRelatingtoElectricalInsulation2.2ISOStandards:56–1Shellac—Specifications—Part1:Hand-MadeShellac356–2Shellac—Specifications—Part2:Machine-MadeShellac33.Terminology3.1Definitions—Fordefinitionsoftermsusedinthisspeci-fication,refertoTerminologyD1711.4.OrderingInformation4.1Ordersformaterialcoveredbythisspecificationshallincludethefollowing:4.2Lotnumberandsupplier’sdesignation,4.3Typeandgrade,4.4Quantityineachbagorcontainer,and4.5Totalquantity.5.DescriptionofMaterials5.1TypeIisthecommercialrosin-freegradeoforangeflakeshellac.TypeIIcustomarilyoccursintheformofcirculardisksabout76mm(3in.)indiameterand3mm(1⁄8in.)inthicknessandisknowntothetradeaspurebuttonlac.TypeIIIisdarkgarnetincolorandisknowntothetradeaspuregarnetlac.Garnetlacismanufacturedinadmixturewithrosinandasadewaxedlac.Theadmixtureanddewaxedlacarenotcoveredbythiss...
