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BRITISHSTANDARDBS1088-1:2003Marineplywood—Part1:RequirementsICS79.060.10 BS1088-1:2003ThisBritishStandardwaspublishedundertheauthorityofStandardsPolicyandStrategyCommitteeon9July2003©BSI9July2003FirstpublishedasBS1088&4079November1966SecondeditionasBS1088-1July2003ThefollowingBSIreferencesrelatetotheworkonthisBritishStandard:CommitteereferenceB/541Draftforcomment01/108762DCISBN0580417417CommitteeresponsibleforthisBritishStandardThepreparationofthisBritishStandardwasentrustedtoTechnicalCommitteeB/541,Woodbasedpanels,uponwhichthefollowingbodieswererepresented:APATheEngineeredWoodAssociationAssociationofBritishPlywoodandVeneerManufacturersBritishMarineIndustriesFederationBritishWoodworkingFederationCanadaWoodUKDepartmentofTradeandIndustryEternitBuildingMaterialsFlatRoofingAllianceForestryCommissionFurnitureIndustryResearchAssociationInstitutionofStructuralEngineersLloydsRegisterofShippingMineralBondedBoardProductsFederationMinistryofDefenceNationalFederationofRoofingContractorsNationalHouse-BuildingCouncilNationalPanelProductsAssociationTimberResearchandDevelopmentAssociationTimberTradeFederationWoodPanelIndustriesFederationZurichMunicipalBuildingGuaranteeAmendmentsissuedsincepublicationAmd.No.DateCommentsBS1088-1:2003©BSI9July2003iContentsPageCommitteeresponsibleInsidefrontcoverForewordii1Scope12Normativereferences13Termsanddefinitions14Requirementsformanufacture35Requirementsformarineplywood66Markinganddocumentation7AnnexA(informative)MethodofdeterminingtherelationshipbetweenthetestmethodsgiveninBS1088-2andBSEN314-18AnnexB(informative)Exampleofmarking9Bibliography10Table1—Permissiblefrequenciesofdefectsandjointsinveneerforouterandinnerplies3Table2—Marineplywooddurabilityclasses5Table3—Durabilityrequirementsforstandardandlightweightmarineplywood5Table4—Permissibletolerancesfornominallength,width,thicknessandsquarenessandedge-straightnessofpanels6BS1088-1:2003ii©BSI9July2003ForewordThispartofBS1088hasbeenpreparedbyTechnicalCommitteeB/541.TogetherwithBS1088-2,itsupersedesBS1088:1966andBS4079:1966,whicharewithdrawn.BS1088isissuedintwoparts:—Part1:Requirements;—Part2:Determinationofbondingqualityusingtheknifetest.Guidanceonpreservativetreatmentofplywood,whichwaspreviouslyincludedinBS4079,isnowdealtwithbyreferencetoDDENV1099.Unlikeperformance-basedplywoodstandards,BS1088isuniqueingivingspecificrequirementsforwoodspecies,construction,lay-upandadhesives.Thesefeatureshavebeenmaintainedandwhereappropriatecross-referencedtocurrentBritishandEuropeanStandards.Althoughtheterm“marineplywood”iswidelyusedincommerce,therehasnotpreviouslybeenaformaldefinitioninBritish,EuropeanorInternationalStandards.AdefinitionisincludedinClause3ofthisstandard.StandardmarineplywoodasdefinedinandmeetingtherequirementsofBS1088hasoutstandingresistancetobothbiodeteriorationandlossofbondstrengthwithtime.LightweightmarineplywoodasdefinedinandmeetingtherequirementsofBS1088hasoutstandingresistancetolossofbondstrengthwithtime.BS1088wasoriginallydevelopedtospecifyplywoodmeetingtheexactingrequirementsofuseinmarinecraft,butmarineplywoodisalsosuitableforuseinextremeclimatesandinsuchapplicationsasvehiclebodiesandgeneralbuildingworkwherethecostofreplacementintheeventoffailuremightbehigh.Thescopeofthiseditionreflectsthiswiderrangeofuse.ThebiologicaldurabilityofmarineplywoodisexpectedtobegreaterthanthatofplywoodofthesamespeciesthatmeetsonlytheminimumrequirementsofBSEN636-3.BS1088:1966andBS4079:1966wereconfirmedwithoutamendmentin1992.Theoriginaltextisnolongeruseableforanumberofreasons:conformitytomanyrequirementscannotbeverifiedbytestsonthefinishedproductsubsequenttomanufacture,severalreferencesarenowobsolete,therearenoadequateverificationandlabellingclausesandthelanguagedoesnotgivethedegreeofprecisionandlackofambiguityrequiredbyBS0.ThemaintechnicalchangesinthiseditionareinthespecificationoftheadhesivetypetoovercometheoriginalunverifiablerequirementsforBS1203typeWBP,andtheuseofsheartestinginplaceoftheknifetestfordeterminingbondingquality.Theknifetest,describedinPart2ofthisstandard,maystillbeusedforqualitycontrolinthemill.Themycologicaltesthasbeendeleted.Theoriginaleditiongavenorequirementsforastatisticalcontrolofproductionforthepurposeofverifyingconformity.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.Assessedcapability.UsersofthisBritishStandardareadvisedtoconsiderthedesirabilityofqualitysystemassessmentandregistrationagainsttheappropriatestandardintheBSENISO9000seriesbyanaccreditedthird-partycertificationbody.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,pagesiandii,pages1to10,aninsidebackcoverandabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.BS1088-1:2003©BSI9July200311ScopeThispartofBS1088specifiesrequirementsformarineplywoodforuseinthemanufactureofmarinecraftandinothermarineandwat