BS EN 1211-1998 人生活用水的水处理用化学物质.三磷酸钾
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【英文标准名称】:Chemicalsusedfortreatmentofwaterintendedforhumanconsumption-Potassiumtripolyphosphate
【原文标准名称】:人生活用水的水处理用化学物质.三磷酸钾
【标准号】:BSEN1211-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-02-15
【实施或试行日期】:1998-02-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:聚磷酸盐;毒性;水;水处理;作标记;给水工程;有毒物质;一氧化物;磷酸盐;浓度(化学);钾无机化合物;饮用水;水质试验;成份允差;试验条件;给水;杂质;含量测定;抽样方法;化学分析和试验;安全措施
【英文主题词】:
【摘要】:
【中国标准分类号】:G77
【国际标准分类号】:71_100_80
【页数】:12P;A4
【正文语种】:英语
【英文标准名称】:StandardGuideforIdentificationofFibers,Fillers,andCoreMaterialsinComputerizedMaterialPropertyDatabases
【原文标准名称】:计算机处理的材料性能数据库中纤维、填充料和磁心材料的识别
【标准号】:ASTME1471-1992(2004)
【标准状态】:现行
【国别】:
【发布日期】:1992
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D30.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:编目;填充料;材料;数据基础
【英文主题词】:computerization;corematerial;fiber;filler;materialsdatabases;materialidentification
【摘要】:Thisguidedefinestheinformationwhichisconsideredessentialtouniquelydescribeafiber,filler,orcorematerialinacomputerizeddatabase.Aformatisrecommendedforplacingthesedatainfieldssuitableforacomputerizeddatabase.Additionalfieldswhichareconsidereddesirable,butnotessential,arealsodefined.Thepurposeistofacilitateefficientstorageandretrievaloftheinformationwithacomputerandtoallowmeaningfulcomparisonofdatafromdifferentsources.Comparisonofpropertydatafromdifferentsourceswillbemostmeaningfulifalltheessentialinformationdefinedbytheguidelinesispresent.Comparisonmaystillbepossibleifessentialinformationisomitted,butthevalueofthecomparisonmaybegreatlyreduced.Whileatthistimethereisnogenerallyacceptednumberingsystemforthesematerials,analogoustothoseformetalsandalloys,afieldforanidentifyingnumber(MaterialReferenceNumber)isincludedshouldsuchasystembedevelopedinthefuture.Thisinformationshouldnotbeconsideredrestrictive.Forexample,adatabasedesignermayfinditusefultoaggregateseveralfields,suchasthematerialandchemicalclassfields,intoasinglefield.Thismayaffectsearchstrategiesandotherdatabaseoperations.Theseconsiderationsarebeyondthescopeofthisguide.1.1Thisguideestablishestheessentialanddesirableelementsofdatarequiredfortheidentificationincomputerizedmaterialpropertydatabasesoffibers,fillers,andcorematerialsusedincompositematerials.Arecommendedformatforentryofthesefieldsintoacomputerizeddatabaseisprovided.Examplesoftheapplicationofthisguidearealsoincluded.1.2Therecommendedformatdescribedinthisguideissuggestedforuseinrecordingdatainadatabase,whichisdifferentfromcontracturalreportingofactualtestresults.Thelattertypeofinformationisdescribedinmaterialsspecificationsshowninbusinesstransactionsandissubjecttoagreementbetweenvendorandpurchaser.1.3Thematerialscoveredbythisguideincludefibers,bothcontinuousanddiscontinuous,andfillersofvariousgeometrieswhichareusedasreinforcementsincompositematerials,aswellascorematerialsusedinsandwichcomposites.Coresmaybefoam,honeycomb,ornaturallyoccurringmaterialssuchasbalsawood.Thesematerialsaredistinguishedfrombulkmaterialsbytheimportanceoftheirspecializedgeometricformstotheirproperties.Thisdifferenceisreflectedintheuseofgeometry,alongwithchemistry,asaprimarybasisforclassification.IdentificationofcompositematerialsisdiscussedinGuideE1309.
【中国标准分类号】:L70
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:
