您的位置: 标准下载 » 国际标准 » BS 英国标准 »

BS EN 351-1-2007 木材和木基制品的耐用性.防腐剂处理过的实心木材.第1部分:防腐剂渗透和滞留的分类

时间:2024-05-09 18:02:43 来源: 标准资料网 作者:标准资料网 阅读:8645
下载地址: 点击此处下载
【英文标准名称】:Durabilityofwoodandwood-basedproducts-Preservative-treatedsolidwood-Part1:Classificationofpreservativepenetrationandretention
【原文标准名称】:木材和木基制品的耐用性.防腐剂处理过的实心木材.第1部分:防腐剂渗透和滞留的分类
【标准号】:BSEN351-1-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2008-01-31
【实施或试行日期】:2008-01-31
【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】:分类系统;制造日期;定义;耐久性;危害;保持能力;浸渍;作标记;材料测试;穿透深度;渗透性试验;持久性;防腐剂处理;保护剂;质量评定;实心木块;规范(验收);木材;木材防腐剂;木制品;木材技术
【英文主题词】:Classificationsystems;Dataofthemanufacturer;Definition;Definitions;Durability;Hazards;Holdingcapacity;Impregnation;Marking;Materialstesting;Penetrationdepths;Penetrationtests;Permanency;Preservativetreatment;Protectingagents;Qualityassessment;Solidwood;Specification(approval);Wood;Woodpreservatives;Woodproducts;Woodtechnology
【摘要】:ThispartofEN351establishesclassificationforpreservative-treatedwoodintermsofpreservativepenetrationandgivesguidanceonaclassificationofretention.Theseshouldbeusedasabasisforspecifyingpreservativetreatmentsforparticularproducts.ThispartofEN351providesterminologytobeusedbythespecifierwhenpreparingapreservativetreatmentspecificationorproductstandard.Itisnotatreatmentspecificationinitself.ThispartofEN351isapplicabletotheproductionofpreservative-treatedsolidwood,includinggluedlaminatedtimber,suitableforuseinthoseserviceconditionsdefinedbytheuseclassesinEN335-1.Itdoesnotapplytoanysubsequentexaminationoftreatedwoodinservice.ThispartofEN351isapplicabletotheprotectionofwoodagainstattackbywood-destroyingandwooddisfiguringfungi,insectsandmarineorganisms.ThispartofEN351doesnotconsiderotherpropertiesoftreatedwood,forexampleodour,corrosivenessandcompatibilitywithothermaterials,nordoesitconsideranypropertiesfromthehealth,safetyandenvironmentalpointofview.ThispartofEN351doesnotapplytowoodtreatedwithformulationsthatareappliedtotimberinservicetoeliminateorcontrolanexistingfungalorinsectinfestation,ortopreventattackbysapstainfungi,orinsectsingreentimber.
【中国标准分类号】:B71
【国际标准分类号】:71_100_50;79_040
【页数】:24P.;A4
【正文语种】:英语


【英文标准名称】:StandardGuideforAcuteToxicityTestwiththeRotiferBrachionus
【原文标准名称】:短尾轮虫科剧毒性测试的标准指南
【标准号】:ASTME1440-1991(2004)
【标准状态】:现行
【国别】:
【发布日期】:1991
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E47.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:实验室医学;毒性;导则;试验
【英文主题词】:acutetoxicity;cysts;freshwater;invertebrate;LC50;marine;rotifers;toxicitytest
【摘要】:1.1Thisguidedescribesproceduresforobtaininglaboratorydataconcerningtheacutetoxicityofchemicalsandaqueouseffluentsreleasedintofresh,estuarine,ormarinewaters.AcutetoxicityismeasuredbyexposingBrachionusnewlyhatchedfromcyststoaseriesoftoxicantconcentrationsundercontrolledconditions.ThisguidedescribesatestforusingB.calyciflorus,afreshwaterrotifer,andtheAppendixdescribesmodificationsofthistestforestuarineandmarinewatersusingB.plicatilis.Theseproceduresleadtoanestimationofacutetoxicity,includingtheconcentrationexpectedtokill50%ofthetestrotifers(LC50)in24h.ProceduresnotspecificallystatedinthisguideshouldbeconductedinaccordancewithGuideE729andGuideE1192.1.2Modificationsoftheseproceduresmightbejustifiedbyspecialneedsorcircumstances.Althoughusingappropriateproceduresismoreimportantthanfollowingprescribedprocedures,theresultsoftestsconductedusingmodifiedproceduresmightnotbecomparabletorotiferacuteteststhatfollowtheprotocoldescribedhere.Comparisonoftheresultsusingmodifiedproceduresmightprovideusefulinformationconcerningnewconceptsandproceduresforconductingacutetoxicitytestsonchemicalsandaqueouseffluents.1.3Thisguideisorganizedasfollows:1.4Theseproceduresareapplicabletomostchemicals,eitherindividuallyorinformulations,commercialproducts,ormixtures.ThisguidecanalsobeusedtoconductinvestigationsoftheeffectsonrotifersurvivalofpH,hardness,andsalinityandonmaterialssuchasaqueouseffluents,leachates,oils,particulatematter,sediments,andsurfacewaters.Thisguidemightnotbeappropriateformaterialswithhighoxygendemand,withhighvolatility,subjecttorapidbiologicalorchemicaltransformation,orthatreadilysorbtotestchambers.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardsstatements,seeSection.
【中国标准分类号】:C10
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】:


【英文标准名称】:StandardTestMethodforLinearShrinkageofPreformedHigh-TemperatureThermalInsulationSubjectedtoSoakingHeat
【原文标准名称】:预成型高温热绝缘材料在均热加热情况下的线性收缩的标准试验方法
【标准号】:ASTMC356-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C16.31
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:hightemperatureinsulation;linearchanges;linearity;preformedthermalinsulation;shrinkage;soakingheattest;High-temperaturethermalinsulation;Linearchanges/linearity;Preformedthermalinsulation;Shrinkage;Soaktesting
【摘要】:Linearshrinkage,asusedinthistestmethod,referstothechangeinlineardimensionsthathasoccurredintestspecimensaftertheyhavebeensubjectedtosoakingheatforaperiodof24handthencooledtoroomtemperature.Mostinsulatingmaterialswillbegintoshrinkatsomedefinitetemperature.Usuallytheamountofshrinkageincreasesasthetemperatureofexposurebecomeshigher.Eventuallyatemperaturewillbereachedatwhichtheshrinkagebecomesexcessive.Withexcessiveshrinkage,theinsulatingmaterialhasdefinitelyexceededitsusefultemperaturelimit.Whenaninsulatingmaterialisappliedtoahotsurface,theshrinkagewillbegreatestonthehotface.Thedifferentialshrinkagewhichresultsbetweenthehotterandthecoolersurfacesoftenintroducesstrainsandmaycausetheinsulationtowarp.Highshrinkagemaycauseexcessivewarpageandtherebymayinducecracking,bothofwhichareundesirable.Highshrinkagemayalsoopengapsattheinsulationjointstoanexcessiveextentrenderingtheapplicationlessefficientandmorehazardous.Inordertopredictthelimitofpermissibleshrinkageinservice,thedegreeoflinearshrinkagetobetoleratedbyspecimensofaninsulatingmaterialwhensubjectedtosoakingheatmustbedeterminedfromexperience.Itisrecognizedthatafixedrelationbetweenlinearshrinkageundersoakingheatandactualshrinkageinservicecannotbeestablishedfordifferenttypesofinsulatingmaterials.Generallytheamountofshrinkageincreaseswithtimeofexposure.Theamountandrateofincreasevariesfromonematerialtoanother.Inaddition,thevarioustypesofmaterialsmayhavedifferentamountsofmaximumpermissibleshrinkage.Therefore,eachproductmustdefineitsownspecificlimitsoflinearshrinkageundersoakingheat.1.1Thistestmethodcoversthedeterminationoftheamountoflinearshrinkageandotherchangesthatoccurwhenapreformedthermalinsulatingmaterialisexposedtosoakingheat.Thistestmethodislimitedtopreformedhigh-temperatureinsulationthatisapplicabletohot-sidetemperaturesinexcessof200x00B0;F(93x00B0;C),withtheexceptionofinsulatingfirebrickwhichiscoveredbyTestMethodC210.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q25
【国际标准分类号】:81_080
【页数】:3P.;A4
【正文语种】:英语