【英文标准名称】:StandardPracticeforTestingWaterResistanceofCoatingsUsingControlledCondensation
【原文标准名称】:用受控冷凝法测试涂层耐水性的标准实施规程
【标准号】:ASTMD4585-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D01.27
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:涂层;冷凝;耐水解;涂漆;涂料;测试
【英文主题词】:adhesion;blistering;condensation;humidity;resistance-water;rust
【摘要】:Watercancausedegradationofcoatings,soknowledgeofhowacoatingresistswaterishelpfulinpredictingitsservicelife.Failureinacondensationtestmaybecausedbyanumberoffactorsincludingadeficiencyinthecoatingitself,contaminationofthesubstrate,orinadequatesurfacepreparation.Thetestisthereforeusefulforevaluatingcoatingsaloneorcompletecoatingsystems.Condensationtestsofcoatingsareusedforspecificationacceptance,qualitycontrol,andresearchanddevelopmentofcoatingsandsubstratetreatments.Thesetestsusuallyresultinapassorfaildeterminationbutthedegreeoffailurealsomaybemeasured.Acoatingsystemisconsideredtopassifthereisnoevidenceofwater-relatedfailureafteraspecifiedperiodoftime.Resultsobtainedfromtheuseofcondensationtestsinaccordancewiththispracticeshouldnotberepresentedasbeingequivalenttoaperiodofexposuretowaterinthenaturalenvironment,untilthedegreeofquantitativecorrelationhasbeenestablishedforthecoatingorcoatingsystem.Thetestisusuallyconductedonmetal,plastics,orwoodspecimenswiththecoatingfacingtheinsideofthechamber.However,itispossibletotesttheblisterresistanceofhousepaintsonwoodspecimensbymountingtheuncoatedwoodsurfacefacingtheinsideofthechamber.Thispracticecanbeusedforcorrosiontestsparticularlyifthespecimensareperiodicallydried.Whilecorrosionproductswilldrainintothewaterbath,theyarenotcarriedintothevaporthatcondensesonthetestspecimens.1.1Thispracticecoversbasicprinciplesandoperatingproceduresfortestingwaterresistanceofcoatingsusingcontrolledcondensation.Condensationisproducedbyexposingonesurfaceofacoatedspecimentoaheated,saturatedmixtureofairandwatervapor,whilethereversesideofthespecimenisexposedtothecoolingeffectofroomtemperatureair.ThispracticeisderivedfromresearchoftheClevelandSocietyforCoatingsTechnology.1.2Thispracticeislimitedtothemethodsofobtaining,measuring,andcontrollingconditionsandproceduresofcontrolledcondensationtests.Itdoesnotspecifyspecimenpreparation,specifictestconditions,orevaluationofresults.Note1-AlternativepracticesfortestingwaterresistanceofcoatingsincludePracticesD870,D1735,andD2247.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:87_040
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:Structuraltimber-Strengthclasses-Assignmentofvisualgradesandspecies;GermanversionEN1912:2004+A4:2010
【原文标准名称】:结构木材.强度等级.目测等级评定及分类;德文版本EN1912:2004+A4:2010
【标准号】:DINEN1912-2010
【标准状态】:作废
【国别】:德国
【发布日期】:2010-07
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Bulkdensity;Classification;Classificationsystems;Classifications;Construction;Constructionmaterials;Coordination;Definitions;Hardwoods;Softwoods;Solidwood;Sortingclasses;Specification(approval);Strengthclass;Strengthofmaterials;Structuraltimber;Timberconstruction;Tradename;Typeoftimber;Visual;Wood
【摘要】:Thisdocumentlistsvisualstrengthgrades,speciesandsourcesoftimber,andspecifiesthestrengthclassesfromEN338,towhichtheyareassigned.
【中国标准分类号】:
【国际标准分类号】:79_040
【页数】:17P;A4
【正文语种】:德语