DIN ISO 363-1980 纺织机械和附件.带闭口环式钢片综的尺寸
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【英文标准名称】:Textilemachineryandaccessories;flatsteelhealdsforgeneraluse,dimensions
【原文标准名称】:纺织机械和附件.带闭口环式钢片综的尺寸
【标准号】:DINISO363-1980
【标准状态】:作废
【国别】:德国
【发布日期】:1980-05
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:Textilnorm
【标准类型】:()
【标准水平】:()
【中文主题词】:名称与符号;规范;织机;织造;综片;综丝;织造机械;纺织材料;尺寸;纺织机械
【英文主题词】:specifications;healds;heddles;weaving;looms;designation;designations;dimensions;textiles;textilemachinery;weavingmachines
【摘要】:
【中国标准分类号】:W91
【国际标准分类号】:6550
【页数】:3P;A4
【正文语种】:德语
【英文标准名称】:Supplementtodefinitionsoftermsrelatingtocoronaandfieldeffectsofoverheadpowerlines
【原文标准名称】:架空电力线路电晕和无线电噪声用术语的定义的补充件
【标准号】:IEEE539a-1984
【标准状态】:作废
【国别】:美国
【发布日期】:1984
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:配电;电网;术语;架空线;定义;定义;电气工程
【英文主题词】:electricpowerdistribution;terminology;overheadpowerlines;definitions;electricalengineering;electricpowernetworks;definition
【摘要】:
【中国标准分类号】:F20
【国际标准分类号】:29_240_20;01_040_29
【页数】:15P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforHotWaterAcceleratedAgingofGlass-FiberReinforcedCement-BasedComposites
【原文标准名称】:玻璃纤维增强的水泥基混合物的热水加速老化的标准试验方法
【标准号】:ASTMC1560-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:C27.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:老化;纤维增强的;玻璃纤维增强的;纤维水泥;加速的;水泥;热水;玻璃纤维
【英文主题词】:acceleratedaging;GFRC;glassfiber;glassfiberreinforcedconcrete
【摘要】:Thebasisforthistestasanindicatorofthelongtermbehavioroffiberreinforcedcompositesisthatelevatedtemperatureandmoisturecontentacceleratetheformationoftheproductsofhydrationofthecementinthematrix,particularlycalciumhydroxide.3.1.1Itisknownthattheinteractionoftheseproductsofhydration,particularlycalciumhydroxide,withthefiberscanhaveamajoreffectonthelong-termpropertiesofthecomposites.3.1.2Theprincipalmechanismthatoccursisthatthecalciumhydroxideformswithinthebundlesoffilamentsthatformtheglassfiberstrand.Thisgraduallybondsthefilamentstogether,whichreducesfilamentpull-out.Thiscausesareductioninthestraincapacityofthecomposite,therebyreducingthestrengthofthecompositeandchangingthecompositefromaductilematerialtoanincreasinglybrittlematerial.3.1.3Acceleratingtheformationofthehydrationproductsacceleratestheirinteractionwiththefibers,henceacceleratingtheagingofthecomposite.Thedatadevelopedfromthistestareusedbyresearchersandmanufacturerstoevaluatethelong-termperformanceofdifferentmixtures,reinforcements,mixturecomponents,andtoprovidedataforthedevelopmentofdesignproceduresforproductsmadefromthesecomposites.3.2.1Therecordeddataalsoprovidesscreeninginformationasnewmatricesandreinforcementsaredeveloped.Theusefulnessofthetestasanindicatoroflongtermcompositeperformanceisvalidiftheonlyreactionsthatareacceleratedarethosethatoccurmoreslowlyundernaturalweathering,hotwatercaninduceeffectsinsomecomposites,forinstancethosecontainingacrylicpolymer,thatmaynotoccurinnaturalweathering.Thistestmethodmaynotbeavalidindicatoroflong-termperformanceofsuchcomposites.1.1Thistestmethodprovidesawayofacceleratingtheagingofglassfiberreinforcedcementitiouscompositesinordertodevelopdatathatwillindicatereal-lifenaturalweatheringperformance.1.2ThecouponspreparedforthistestmethodwillbetestedusingTestMethodC947.1.3Thistestmethodcanbeusedtoagecouponsforothertestmethods.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:2P.;A4
【正文语种】:
