【英文标准名称】:Adhesivesforload-bearingtimberstructures-Testmethods-Determinationoftheeffectofaciddamagetowoodfibresbytemperatureandhumiditycyclingonthetransversetensilestrength
【原文标准名称】:承重木结构用胶粘剂.试验方法.通过温度和湿度循环试验测定木纤维酸性腐蚀对横向拉伸强度的影响
【标准号】:BSEN302-3-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-07-22
【实施或试行日期】:2004-07-22
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:胶粘剂;苯酚;气候试验;承载;潮气;耐酸性;木材;周期的;木结构件;缩聚制品;元部件;木材技术;苯酚塑料;横向拉伸强度;木纤维;粘胶物;气候荷载;试验设备;氨基塑料;建筑用木料;酸腐蚀;温度;木结构;抗拉强度;试验;建筑
【英文主题词】:Acidresistance;Adhesives;Aminoplasts;Climaticloading;Climatictests;Components;Construction;Cyclic;Damagebyacid;Glue;Loadbearing;Moisture;Phenol;Phenolicplastics;Polycondensationproducts;Structuraltimber;Temperature;Tensilestrength;Testequipment;Testpieces;Testing;Timberconstruction;Transversetensilestrength;Wood;Woodfibres;Woodtechnology;Woodenstructuralpart
【摘要】:ThispartofEN302specifiesamethodfordeterminingtheeffectonbondstrengthofdamagetowoodfibrescausedbytheactionofacidsfromtheadhesiveduringclimaticcycling.Itissuitableforthefollowingapplications:a)assessingthecomplianceofadhesiveswithEN301;b)forassessingthesuitabilityandqualityofadhesivesforload-bearingtimberstructures;c)fordeterminingiftheadhesiveafterbondinghasadamaginginfluenceonthestrengthofthewoodduetochemicalaction.Thistestisintendedprimarilytoobtainperformancedatafortheclassificationofadhesivesforload-bearingtimberstructuresaccordingtotheirsuitabilityforuseindefinedclimaticenvironments.Thistestiscarriedoutonspruce(PiceaabiesL).Thismethodisintendedforusetoprovidenumericaldesigndataanddoesnotnecessarilyrepresenttheperformanceofthebondedmemberinservice.Itisnotintendedtobeusedtoassessthesuitabilityofadhesivesforthemanufactureofwood-basedpanels.NOTEAttentionisdrawntothefactthattheperformancerequirementestablishedinEN301fortheacidfibredamagetestappliesonlyifeither:1)theadhesivemixture,or2)oneoftheadhesivecomponents,whenappliedseparately,showsapHvaluelowerthan4,0,asdeterminedbyEN1245.
【中国标准分类号】:G38
【国际标准分类号】:83_180
【页数】:14P.;A4
【正文语种】:英语