Laminated glass is a safety glass made by

laminating two or more sheets of equal or

unequal glass thicknesses with a flexible plastic

interlayer (called PVB – poly vinyl butyral).

The glass and interlayer are bonded together by

heat and pressure in an autoclave. Generally

this interlayer is 0.38mm thick for annealed

glass but other thicknesses are available.

05laminated safety glass

32

laminated glass

features and applications

0 Safety–GradeAsafetyglasswhichmeetsAS1288requirements.Dependingontheseverityofimpact,willnotsplinterintojaggeddangerouspiecesandwillremainintactinopening;

0 Colour range–WiderangeofcoloursandPVBthicknessesincluding0.38,0.76,1.14,and1.52mm;

0 Stronger–Heatstrengthenedandtoughenedlaminatedglassenablinglargerpanelstobeglazedwithgreaterresistancetowindloadingoverordinaryannealedglass;

0 Climate control–Solarandthermalcontrolfunctionsthroughuseoftinted,reflective,low-Eglassgivingusermanyperformanceoptions;

0 Security–Securityfeatureswhichgreatlyaidpreventionofillegalentryand/orvandalism(eg.,1.52mmPVBandSentryGlas®Plusinterlayers);

0 Storm protection (weather/disastercontrolfeatures)–Dependingonseverityofimpact,glassstaysintactintheopeningwhenbrokenthuspreventingdamagingeffectsofweatherinsidebuildingunlikeordinaryannealedglass;

0 UV protection–Helpstoprotectcarpets,curtains,andfurniturebyscreeningout99%ofallultra-violetlight;

0 Fire protection(fireretardation)–Laminatedglassthoughnotusedonitsownaspartofafireresistantglazing,stillprovideslongerevacuationtimewhencomparedtoordinarythinannealedglass;

0 Noise reduction–Noisereductionbenefits;

FormoredetailsreferSection16.

0 Distortion free–visuallydistortionfreeinannealedform;

0 Applications–suitedforoverheadglazingsuchaswindowsdirectlyabovedoorways,rooflites,skylitesandmultistoreybuildings,whereuponimpactglassisunlikelytofalltothegroundbelow.Alsosuitedfordoors,internalpartitions,sidelites,liftwells,balustrading,laminatedmirrorsinwalkthroughrobesituations,wetareasandotherareasasrequiredbyAustralianStandards.

33

glass performance diagram definitions

0 SHGC=Solarheatgainco-efficient;

0 U-value=Thermalinsulationpropertiesexpressedinwattsxm2perdegreeCelsius;

0 VLT=%Visiblelighttransmittance;

0 VLR=%Visiblelightreflectance.

diagram 5.1: typical laminated glass make-up

design and glazing notes

0 Interlayers: PVB’s–Standardstockedlaminatedglassusesthesamethicknessandcolourinterlayer(generally0.38mmthick).Onlyslightcolourvariationwilloccurastheoverallglassthicknessincreases;

0 Heat strengthened/toughened: PVB’s–Heatstrengthened/toughenedlaminatedglasswillgenerallyrequireathickerPVBinterlayerthanthestandard0.38mmthickness.Theprocessoftemperingglasscreatessomedistortionandrollerwaves.Theglassisgenerallynotasflatasordinaryannealedglass.Thereforeathickerinterlayerisutilisedtoadequatelybondtheglassandinterlayer;

0 Glass panel edges–Laminatedglassmusthave‘good’straightcleancutedgeswithminimaldefects.Allreflectivelaminated,vacuumcoatedlaminatedglassandpyrolyticlow-ElaminatedmadeupwithtintedPVB’sorbodytintedlitesshouldhaveflatgroundedgesonallsidesasaminimum;

0 Matching–Colouredinterlayersdonotcloselymatchtintedfloats.Thismaycauseaproblemwherefloatandsafetyglassarerequiredinthesameglazingsituation.Solutionsmayincludeusingalllaminatedglassorlaminatingthetintedfloat;

0 Thermal breakage–Tinted,reflectiveandlow-Ecoatedlaminatedglassshouldhaveathermalassessmentcarriedouttodetermineriskofthermalbreakage.Tougheningorheatstrengtheningwillpreventthermalbreakage;

0 Distortion and reflection–Duetothecontrollednatureofthelaminatingprocess,facadesglazedwithlaminatedannealedglassavoidtheriskofvisibledistortions,providingsignificantlysharperreflections.Thesebenefitsaredependentonthenatureofthefinalprocessedproduct;

0 Edge delamination/blushing–Generallyspeaking,somedegreeofedgedelaminationoredgeblushisinherentinmostPVBlaminatedglassproducts.Edgedelaminationisusuallytheresultofthebreakdownofthebondbetweentheglassandtheinterlayerbyatmosphericmoistureattack,orsealantdegradation.Certainconditionswillaccelerateorretardthemanifestationofedgedelamination,butasaruleedgedelaminationshouldnotextendmorethan6mmforordinaryannealedlaminatedandnomorethan10mmforheatstrengthenedortoughenedlaminatedglass.Thisextentofdelaminationdoesnoteffectthestructuralintegrityoftheglass.Asitismostnoticeablewhenlaminatedglassisinstalledwithanexposededge,ifdiscolourationandedgedelaminationisaconcern,itisrecommendedthattheedgesbefullyglazedinaframeoraSentryGlas®Plusinterlayerbeused.Inglazingapplicationssuchasframelessbalustrading,astainlesssteeltrimorchannelmaybefixedtotheedgestocoveranydelamination.Careshouldbetakenthatthesetrimsdonotcapturewaterandthatthefixingsealantusediscompatible.

Seepage38formoreinformation.

0 Silicone, sealants and putty use–Theedgesoflaminatedglassshouldnotbeexposedtowater,linseedoilputtiesoracidcuresilicones.

ordering guidelines

Laminated glassallowsconstructionofmanydifferenttypesofglass,processesandthicknessestosuittheuserandapplication.Thefollowingsectionisaguidetoconstructinglaminatedglassbasedonglassproducttypeused.

Before ordering, please refer to the following information:

0 Interlayersandthicknesses;

0 Sizes;

0 Clearfloatwithclear/tintedPVBlaminated;

0 Tintedfloatlaminated;

0 Reflectivecoatedlaminated;

0 Low-Ecoatedlaminated;

0 Sunergy®Laminated;

0 XIRLaminatedFilmproducts;

0 Security–BasicAttackResistance;

0 SentryGlas®Plus(SGP)Highstrengthlaminated;

0 TranslucentPVBlaminated;

0 Patternlaminated;

0 Vanceva™Decorativelaminated;

0 Toughenedlaminated;

0 Heatstrengthenedlaminated;

0 Combinationheatstrengthened/toughenedlaminated;

0 Automotivelaminated.

34

interlayers and thicknesses

architectural

0 ThefollowingPVBinterlayersareavailabletobelaminatedwithmosttypesofglass:

ClearGreyBronzeGreenCoolblueTranslucentSoftwhitetranslucent;

ForstandardproducttypesstockedatNationalGlass,pleasereferSection21.

0 TypicalPVBinterlayerthicknessesavailableforglassmake-up:

0.38mm(standardforannealedglass)0.76mm1.14mm1.52mm;

0 Typicalfinishedglassmake-upthicknessesusing2litesofequalthickness:

5.38mm/6.38mm/8.38mm/10.38mm/12.38mm5.76mm/6.76mm/8.76mm/10.76mm/12.76mm6.52mm/11.52mm;

0 Somelaminatesmayalsohaveunevenlitethicknesses;

0 Heatstrengthenedandtoughenedlaminatedglasswillgenerallyhaveminimumsof0.76mmto1.52mmthickinterlayersrespectively.

sizes

maximum

0 Thelargestavailableannealedlaminatedglasssizeisrestrictedbyautoclavesize,substrateorbaseproductsizeandtype.ThelargestsizeabletobemanufacturedinAustraliais5100mmx3210mm.Largerpanelsareavailableonextendedleadtimes;

PleasereferSection21formoresizingdetails.

0 Heatstrengthenedlaminatedandtoughenedlaminatedglassisrestrictedbytougheningfurnacespecificationsandbedsize.

minimum

0 Thesmallestpanelofglassthatcanbecutfromoriginalsizesheetsis100mmx100mm;

0 TheminimumsizeforpanelswithFlatGround/Polish(straightedges)willbe250mmx100mm;

0 Heatstrengthenedandtoughenedlaminatedglasssizesmustequal260mminthediagonalmeasurement.

Seepage30.

clear float glass with clear/tinted PVB’s

Thisisthestandardstockedlaminatedproductusing2litesofclearglasswithaclearortintedPVBinterlayer.Availableasfinishedcut-to-sizeitemorsoldinoriginalsheetformforendusertocut-to-size.

SeeSection21forstocksizedetails.

tinted float glass laminated

Notgenerallyareadystockeditem,butismanufacturedasafinishedcut-to-size.Mostoftentheuserwishestoutilisethebenefitsoflaminatedglasswhilststillretainingtheperformanceorcolourofabodytintedglass.

TintedfloatglasslaminatedisusuallymadeupwithaclearPVB(thoughatintedPVBmaybeaddedtofurtherenhancesolarperformanceorcolour).Thetintedfloatislaminatedastheoutsideliteprovidingoptimalsolarcontrol.Thisisalsorelevantwherepanelsarerakedoroutofsquaretoavoidcolourdiscrepancieswithadjacentpanels.

reflective coated glass laminated

pyrolytic reflective glass – hard coat

Acoatedreflectiveglasssurfaceisnowintroducedtothelaminatedglassmake-up.Thereflectiveglassisgenerallyglazedastheoutsidelitewiththereflectivecoatingitselfonsurfaceposition#2.Thiswillonlymarginallydecreaseperformanceintermsofheatcontrol.Reflectivesurfaceplacementon#1shouldbeavoidedduetoeffectsofweatheringandpollutantsandsubsequentcleaningdifficulties.

SeeDiagram5.1.

vacuum coated reflective glass – soft coat

Acoatedreflectivesurfaceisnowintroducedtothelaminatedglassmake-up.Subjecttofewexceptions,tintedPVBinterlayeredlaminatedglasshasthereflectivecoatingonsurfaceposition#3.TheeffectofthetintedPVBistodampenthereflectivitywherebuildingcodesareconcerned.Surfaceposition#3willalsoenhancethecolouroftheinterlayerreducingthemirrorlikeappearance.

SeeDiagram5.1forsurfacepositions.

35

6.38mmgreenPVBlaminated–BradnamsCommercial.

21.52mm toughened laminated with ceramic painted pattern – Bradnams Commercial.

low-E coated glass laminated

pyrolytic low-E glass – hard coat

AddingaSungate®500orSunergy®low-Ecoatedglasstoamonolithiclaminatedglassmake-upprovidestheoptionofeithersurfaceposition#2,#3or#4glazing.However,bestuseisintendedwithsurface#4placement(seeDiagram5.1).Thisallowsforlower“U”valuesorimprovedinsulationproperties.Surfaceposition#2or#3placement,thoughprovidingsomebenefitsthroughlowerSHGC,providesthesame“U”valueperformanceasordinarynoncoatedglass.Placementofcoatingwillalsobegovernedbyenergyefficiencybuildinglegislationwhichstipulatesacertainlevelofinsulationwhichcanbeachievedthroughsurfaceposition#4placement.Low-Ecoatingplacementonsurfaceposition#1shouldbeavoidedduetoeffectsofweatheringandpollutantsandsubsequentcleaningdifficulties.

Formoreinformationreferpage19.Seealso“VisualCharacteristics–Low-ECoatedGlass”page21.

vacuum coated low-E glass – soft coat

Currenttechnologyonlyallowsforvacuumcoatedlow-Eplacementonsurfaceposition#2and#3inmonolithicapplications.LowerU-valuebenefitscanonlybeachievedwithIGU’s.

36

sunergy® laminated

Sunergy®glassisapyrolyticlow-Ecoatedtintedglasswhichcombinesimprovedsolarcontrol(SHGC)andthermalinsulation(U-value).Itisalsoanexcellentresponsetocurrentarchitecturaltrendsdesiringneutrality,lowreflectionandhigherlevelsofvisiblelighttransmittance.

Sunergy®isavailableinthefollowingbasethicknessesforlamination:

0 3/4/6/8/10mmSunergy®Neutral;

0 6mmSunergy®Green;

0 6mmSunergy®Azur.

emissivity

Surface emissivity =0.28

single glazing

Sunergy®’sdurablepyrolyticcoatingmakesitpossibletouseSunergy®insingleglazing.Inthiscaseitisthesolarcontrolpropertiesthatarethemostimportantfunction.Maximumperformanceisachievedwiththecoatingonsurfaceposition#4forlaminatedglass.Surfaceposition#1shouldbeavoided.TheU-valueorthethermalinsulationfactorisalsoimprovedbyupto30%overordinarynon-coatedglazing.

Sunergy®Green,Azurandlaminatedmake-upsusingtintedPVB’sofferahigherenergyabsorptionthanSunergy®Neutralandordinaryclearfloatglass.Toavoidbreakageasaresultofthermalstress,werecommendthatathermalstressassessmentbecompleted.

FormoreinformationonSunergy®includingcleaningandhandlingtopics,referpages20and26.

Foracomprehensiverangeofperformancedatareferpage142.

Performance 6.38mm Sunergy® Neutral:

Madeupof:1@3mmclear/1@0.38mmclrPVB/1@3mmSunergy®Neutral#4.

All photos: 6.38mm Sunergy Grey PVB laminated – AQF Windows and Doors.

37

Performance 6.38mm Sunergy® Grey PVB:

Madeupof:1@3mmclear/1@0.38mmgreyPVB/1@3mmSunergy®Neutral#4.

Performance 6.38mm Sunergy® Green PVB:

Madeupof:1@3mmclear/1@0.38mmgreenPVB/1@3mmSunergy®Neutral#4.Thismake-upusesagreenPVBinterlayerratherthanthe6mmSunergy®Green.

visual characteristics – low-E glass

Sungate®500,Sunergy®andotherlow-Ecoatedproductsincertainlightingconditionsmaydisplayslightvisualdistinctionswhencomparedtoordinarynoncoatedglass.Thisisaninherentcharacteristicofthelow-Ecoatingandindicatesthefunctionalpropertiesoftheglass.Werecommendsamplesbeviewedunderbothnaturalandartificiallightingconditionsforproductacceptance.

XIR laminated film

Formaximumdaylightingwithminimumsolarheatgain,laminatedglassincorporatinghighperformancecolourneutralXIRfilmsarenowavailable.Thefilmitselfislaminatedbetweenthetwosheetsofglassforprotection.XIRfilmsareidealforlargefacades,sportingfacilities,atriums,libraries,skylightsandmuseumswheresolarcontroliscriticalwithoutthesacrificeofnaturaldaylight.SolarenergyperformancecanbefurtherimprovedbycombiningXIRfilmswithtintedPVB’s,tintedfloats,reflectiveandlow-Ecoatedglassproducts.

Performance XIR 12.76mm Energy Advantage (#4):

Performance XIR 12.76mm Sunergy® Neutral (#4):

security – basic attack resistance

Laminatedglassisavailableusinga1.52mminterlayertomakea6.52mmand11.52mmlaminatedglass.Theseproductsareidealforsituationswherethenoisegeneratedbytheattackalertsneighboursoroccupants.Thethickerinterlayerisdesignedtosignificantlyincreasetheamountoftimeandeffortrequiredbytheintrudertogainaccessthroughtheglazing.Thisservestodissuadeandthwartwouldbeintrudersorburglars.

Seealso“Security”,Section18.

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sentryglas® plus SGP

DuPont SentryGlas® Plus (SGP) interlayeristhelatestinalonglineofproductsofferedbyDuPontforuseinlaminatedsafetyglass.Inresponsetoarchitecturalandtransportationindustrydemandsfortougherwindowsystemswithglassonboththeinnerandoutersurfaces,DuPonthasintroducedSGPionoplastinterlayer.Inproperlydesignedwindowsystems,thistechnologyhaspasseddemandinghurricaneprotectioncodesinSouthernFlorida.Italsooffersimprovedballisticprotectionorthinnerconstructionsthanarenowpossiblewithconventionallaminatedglass.SGPoffersfivetimesthetearstrengthand100timestherigidityofconventionalPVBlaminatedglassinterlayer.

features and applications

SGP laminatesofferextendedfunctionalityversuslaminateswithtraditionalinterlayersandmakesthemverysuitablefortheapplicationswherethefollowingfeaturesarerequired:

0 Strongerlaminates,particularlywhenbendingstressstateisdominant–

In2-sided/1-sidedsupportconditions Inpoint-supportconfigurations Inhighaspectratio(>1.5)plateswith4-sidesupport;

0 Lowerdeflection;

0 Hightearstrength;

0 Highstiffness;

0 Lowcreep;

0 Impactandstructuralperformanceoverawidetemperaturerange;

0 Superiorpost-glassbreakageproperties;

0 ImprovededgestabilityoverstandardPVB’s;

0 HighClarity;

0 Lowopticaldistortion(insomecasesSGPcaneliminatetheneedtousetoughenedorheatstrengthenedglass).

interlayers and thicknesses

Availableinclearonly1.52mmand2.28mmionoplastinterlayerthicknesses.Forcolours,abodytintedglassmustbeincorporatedinthemake-up.SGPcannotbelaminatedwithconventionalPVBinterlayer.

sizes

0 Maximum SGP interlayer size–3000mmx1800mm.

edge stability and delamination

SGPlaminatesaredisplayingexcellentweatheringperformance.Aftermorethan7yearsofnaturalweatheringinFlorida,USAnodefectswereobservedinthelaminatedglasssamplesandalongtheedges.Testswithneutralcurestructuralsiliconesealantshavealsorevealedexcellentperformance.Thisprovidestheopportunitytouseexposededgelaminatedglasswithlessconcernofedgedelamination.

All photos: 30.56mm Cyclone resistant laminated – Make-up 10mm Azuria toughened/2.28mm SGP/10mm clear toughened/2.28mm SGP/6mm Energy Advantage low-E (#4) toughened. Fletcher Construction American Samoa. Glazed by National Glass. Architect – Lively Architects.

39

White translucent laminated – Rapid Glass.

Topandmiddlephoto:6.38mmwhitetranslucentlaminated–BradnamsCommercial.

translucent PVB laminated

Translucentandsoft white translucent0.38mmPVBinterlayerswithclearglassareusedtomake-upthisproduct.Whereacolouredtranslucentisrequired,atintedPVBinterlayerisgenerallyadded.Thiswillincreasetheinterlayerthicknesstoaminimumof0.76mm.Availableinsizesupto2760mmx3660mm.

pattern laminated glass

Typically,apatternedortexturedglassislaminatedwithaclearglass.Becauseofthepatternedglasscontours,a0.76mmthickPVBisrequiredforsuccessfullamination.PatternswithdeepercontoursorprofilescannotbelaminatedwithstandardPVB’s.Inthiscaseanalternativeformofmanufacturingisavailable.Called‘liquidpour’or‘castinplace’,thismethodinvolvespouringaresinintothecavitybetweentwosheetsofglass.

TheresincurestoproduceaGradeAsafetyglass.LiquidpourorCIP(castinplace)ismanufacturedwitha6mmor4mmwhitebutylstriptapearoundtheperimeterwhichmustberemovedifedgesareexposed.Pleasespecifyrebatedetails.Removaloftapeinvolvesgrindingorcuttingatextracost.TheliquidpourmethodisusedonpatternedglasswithdeepprofilessuchasKosciusko,Broadline,Narrowreed,Flemish,ArticoandMonumentals.

Seepage45formoredetails.

Resinthicknessesare0.80mmand1.60mmthick.Coloursaregenerallyrestrictedtolaminatingabodytintedglass/clearresin/clearglassasresincolourswillfadeifglazedexternally.ClearresinisUVresistant.Maximumsizesupto2600mmx1400mm.

ReferSection21forastocklistofstandardpatternedPVBlaminatedglassandsizes.

available colours

40

vanceva™ decorative laminated

Vanceva™bySolutia,isaninterlayersystemthatincorporatescolourandgraphicstocreateauniquerangeoflaminatedglass.TheVanceva™interlayerisapermanentlybondedadvancedlaminatedglasssolutionthatiseasilymaintained.

Vanceva™’scolouredinterlayersenableslaminatedglasstobeproducedinawidechoiceofcoloursotherthanthestandardgrey,bronze,greenandbluePVBinterlayers.Thesecolourscanalsobecombinedwithabroadrangeofpatterns.

FormoreinformationoncolourdesignoptionsvisittheProductStudioatwww.vanceva.com.

sizing

0 Maximum size–3660mmx2440mm;

0 Minimum size–100mmx100mm.

All photos: Vanceva laminated – photos courtesy of DMS Glass.

41

toughened laminated

Thistypeoflaminatedglassconsistsoftwolitesormoreoftoughened glass.Tougheningisrequiredwherethereisariskoftheglassbreakingduetoheatstressorhighloading(i.e.windloading).A1.52mmthickinterlayerisgenerallyaminimumrequirement.

ToughenedlaminatedglassisaGradeASafetyGlass.

Acharacteristicoftoughenedlaminatedglasswhenbrokenisthattheglassfragmentsintosmallpieceswhichmaycausetheglasstosagunderitsownweightandfalloutoftheopening(overheadglazing,structuralbalustradeswithnohandrail).Maximumandminimumsizesaregenerallyrestrictedbytougheningfurnacespecificationsandlaminateautoclavesize.

Seepage30.

EdgeworkandprocessingguidelinesarethesameasHeatStrengthenedlaminatedglass.

heat strengthened H/S laminated

Thistypeoflaminatedglassconsistsoftwolitesormoreofheat strengthened glass.Heatstrengtheningisrequiredwherethereisariskoftheglassbreakingduetoheatstressorhighloading(i.e.windloading).A0.76mmthickinterlayerisgenerallyaminimumrequirementwithH/Slaminatedglass.H/Slaminatedisalsopreferredovertoughenedlaminatedbecausethereislessvisualdistortion.Thisisespeciallyimportantinreflectiveglazings.

H/SlaminatedglassisaGradeASafetyGlass.

AcharacteristicofH/Slaminatedglasswhenbrokenisthattheglasswillbreakintolargerpieces.Thisisusefulforoverheadglazingwheretheglassisthenlesslikelytosagandfalloutoftheopening.HoweverinthesesituationstheframingsystemshouldallowforadequatecaptureorcovertoensurethatwhenbothlitesoftheH/Slaminatedarebroken,theglassdoesnotfallout.

Seealso“PointFixedOverheadGlazing”onpage101.

Maximumandminimumsizesaregenerallyrestrictedbytougheningfurnacespecificationsandlaminateautoclavesize.

Seepage30.

EdgeworkandprocessingshallbereferredtoSection12.

Processingsuchasholesandtheirpositionsarebasedontheindividualthicknessofeachliteofglass.A12.76mmglassmadeupof2@6mmpanelsshallhaveholepositionsrelatedtoa6mmpanelofglass.

combination heat strengthened/toughened laminated glass

H/Sandtoughenedglasscanbelaminatedtogetherforspecificsituations.

automotive

NationalGlasshasanautomotivepostcuttinglicencetoservicetheneedsoftheflatglassautomotiveindustry.Automotivelaminatedglassisavailablein5.76–6.76mmWHP(windscreenhighperformance)clearandgreen.Otherautomotivelaminatedglassincludes5.38–6.38mmclear,grey,green,bronzeandmediumbrown28%.

SpecialrequirementssuchasgreaterthicknessesandothercoloursareavailableonaP.O.A.basis.

the difference between architectural and automotive

Themanufacturingprocessforbothtypesoflaminateareidentical,exceptatthetestingstage,whereautomotivelaminatedglassrequiresadditionaltestingasperAS/NZS2080.Alllaminatedglassinoriginalsheetformshouldhaveacompliance‘sticker’stamp.SomelaminatedglassisdualstampedsothatitcanbeusedforeitherArchitecturalorAutomotivepurposes.WHPlaminatedautomotiveglassisthepreferredglazingmaterialforvehiclewindscreensasitisrequiredtopasstwoadditionaltests:

1 Secondary image;

2 Distortion of vision.

ThismakesitsuitableforPrimaryvisionareause(i.e.thatpartofthewindscreenwhichgivesthedrivertheirfieldofvision).

WHPPVBinterlayerhasbeenspecificallydesignedforhumanimpactconditionsandundernocircumstancescanordinarylaminatedglassorarchitectural0.76mmlaminatedglassbeusedinwindscreenapplications.Theminimumrequirementforstandardwindscreensincarsorbusesis5.76mmor6.76mmthickWHPlaminatedsafetyglass.

automotive special note

InorderforautomotiveglasstodemonstratecompliancewithAustralianStandardAS/NZS2080Safetyglassforlandvehicles,eachpieceofglassfittedtoavehiclemustbeindeliblyanddistinctlymarkedwiththe:

0 Manufacturersnameortrademark;

0 Identificationofthestandard(AS/NZS2080);and

0 Typeofautomotiveglass(T,CHT,L,LT,LCHT,HP,WHP).

WhenforexampleNationalGlasspurchasesandre-cutsWHPorHPPVBautomotivelaminatedglass,theoriginalglasssheetcontainsastickerwithauniqueserialnumberedlabel.ThisnumberisrecordedbyNationalGlassandoffcutsfromtheoriginalsheetofglassarere-identifiedbytheserialnumberfromthe‘MotherSheet’fortotaltraceabilityofallcutglassfromtheoriginalmanufacturertothevehicleitisfittedinto.

NationalGlassaspartofitsproductcertificationcancutandre-markWHPandHPPVBautomotivelaminatedglassincompliancewithAS/NZS2080.