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【英文标准名称】:Base14-20/1forelectronictubes;pinstraighteningtool
【原文标准名称】:电子管用14-20/1管座.管脚矫直工具
【标准号】:DIN44439-3-1970
【标准状态】:作废
【国别】:德国
【发布日期】:1970-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:设计;底座;尺寸;电子管;电气工程;材料;矫直工具
【英文主题词】:materials;straighteningtools;electricalengineering;electrontubes;design;plinths;dimensions
【摘要】:
【中国标准分类号】:L24;L35
【国际标准分类号】:31_100
【页数】:1P;A4
【正文语种】:德语


【英文标准名称】:StandardGuideforSelectionandUseofStoneConsolidants
【原文标准名称】:石材固结剂的选择和使用标准指南
【标准号】:ASTME2167-2001(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【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】:E06.24
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:Consolidants;Historicmasonry/preservation;Performance--buildingmaterials/applications;Performance--environmentalmaterials/applications;Stone;Stoneconsolidants
【摘要】:Thisguideprovidesinformationonmethodsthatcanassistthedesignandconservationprofessionalintheselectionanduseofconsolidantsforstone.Useofaconsolidantshouldbeconsideredonlyafterdevelopingathoroughunderstandingofallfactorscontributingtothedeteriorationofthestone.Suchanunderstandingisbestreachedthroughacomprehensivesurveyofexistingconditions,environment,andadefinitionofstoneperformancerequirements,followedbylaboratoryanalysisofthestoneanditsdeteriorationproducts.Withthisinformationitshouldbepossibletoidentifythedecaymechanismsandtodevelopaconservationplanforthestone.However,carefulpreliminaryinvestigationmayindicatethatconsolidationisaninappropriatetreatment.DecayMechanisms8212;Adiscussionofdecaymechanismsisbeyondthescopeofthisdocument;however,anunderstandingofdecaymechanismsiscriticaltotheevaluationandselectionofappropriatetreatmentmethodsforstoneincludingchemicalconsolidation.(SeeBibliographyforreferences.)Stoneconsolidationshouldonlybedoneaspartofanoverallconservationplan.Consolidatingstonewithoutresolvingunderlyingproblemscontributingtoitsdeterioration(suchasrisingdamporimproperdrainage)cancausetheconsolidationtreatmenttofailcompletelyortoacceleratetherateofdeteriorationofthestone.Theconditionofthestoneshouldbedocumentedbeforeandaftertreatment.Pastexperiencehasshownthatapplicationofsomeconsolidantsmaycontributetodeteriorationorcreateunanticipatedproblems.Insomecases,itmaynotbeappropriatetouseastoneconsolidantatall.Consolidationshouldbeconsideredonlyafterunsuccessfulattemptstoremoveormodifydegradationsourceshavebeencarriedout.Considerationshouldbegiventothefactthatconsolidationofporousstoneisanirreversibleprocess.Consolidantsthatallowfutureretreatmentshouldbeselectedifpossible.Forexample,treatmentofstone,particularlyporousstone,withhydrophobicmaterialsmaynotallowfutureretreatmentwithwater-basedconsolidants.Noconsolidantshouldbeusedthatpreventsorsignificantlyretardswatervapormigrationthroughthestone.1.1Thisguidecoversproceduresfortheselectionanduseofconsolidantsforpreservationofstone.1.2Whenconsideringtheuseofstoneconsolidants,guidancefromspecialistsexperiencedinstoneconservationshouldbesought.Whereworkonfeaturesofartistic,architectural,culturalorhistoricalimportanceisbeingconsidered,guidancefromspecialistsinthesefieldsshouldbesought.Historicpreservationguidelinesshouldbeconsideredinplanningthework.1.3Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthisguidemaybeapplicableinallcircumstances.Thisguideisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject''smanyuniqueaspects.1.4Limiteddescriptionoftestsareprovidedforinformationalpurposesonly.Seethereferencedstandardforcompletedescription.1.5Thevaluesstatedininch-poundunitesaretoberegardedasstandard.Thevaluesgiveninparenthesesareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheusertoconsultappropria......
【中国标准分类号】:Q27
【国际标准分类号】:91_010_01
【页数】:7P.;A4
【正文语种】:英语