文档介绍：BRITISHSTANDARDBSEN61249-2-21:2003Materialsforprintedboardsandotherinterconnectingstructures—Part2-21:Reinforcedbasematerials,cladandunclad—Non-halogenatedepoxidewovenE-glassreinforcedlaminatedsheetsofdefinedflammability(verticalburningtest),copper-clad--```,,,-`-`,,`,,`,`,,`---TheEuropeanStandardEN61249-2-21: workingpermittedwithoutlicensefromIHSNotforResaleBSEN61249-2-21:2003NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN61249-2-21:-2-21:,Electronicassemblytechnology,whichhastheresponsibilityto:—aidenquirerstounderstandthetext;—presenttotheresponsibleinternational/mitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;—-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”,aninsidefrontcover,theENtitlepage,©BSI16February2004ISBN0580434222--```,,,-`-`,,`,,`,`,,`---workingpermittedwithoutlicensefromIHSNotforResaleEUROPEANSTANDARDEN61249-2-21NORMEEUROPÉENNEEUROPÄ--```,,,-`-`,,`,,`,`,,`---EnglishversionMaterialsforprintedboardsandotherinterconnectingstructuresPart2-21:Reinforcedbasematerials,cladandunclad–Non-halogena