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【英文标准名称】:Fertilizers-Determinationoftotalnitrogeninfertilizerscontainingnitrogenonlyasnitric,ammoniacalandureanitrogenbytwodifferentmethods;GermanversionCEN/TS15750:2008
【原文标准名称】:肥料.用两种不同方法测定含有硝态氮、氨态氮和脲氮肥料中的总氮含量
【标准号】:DINCEN/TS15750-2008
【标准状态】:作废
【国别】:德国
【发布日期】:2008-12
【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】:农业;铵;化学分析和试验;含量测定;肥料;实验室间试验;数学计算;硝酸盐;氮;氮含量;还原;试样制备;样本制备;试样;土壤改良;土壤改良物质;滴定法;脲
【英文主题词】:Agriculture;Ammonium;Chemicalanalysisandtesting;Determinationofcontent;Fertilizers;Inter-laboratorytests;Mathematicalcalculations;Nitrates;Nitrogen;Nitrogencontent;Reduction;Samplepreparation;Samples;Soilimprovement;Soilimprovingmaterials;Specimenpreparation;Titration;Urea
【摘要】:
【中国标准分类号】:G20
【国际标准分类号】:65_080
【页数】:18P.;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