SAE J1257 Rating Chart for Cantilevered Boom Cranes
作者:标准资料网 时间:2024-05-10 06:08:43 浏览:9521
来源:标准资料网
Product Code:SAE J1257
Title:Rating Chart for Cantilevered Boom Cranes
Issuing Committee:Cranes And Lifting Devices Committee
Scope: This recommended practice applies to mobile construction type cranes with cantilevered, telescopic booms when used in lifting crane service.
Rationale: This recommended practice applies to mobile construction type cranes with cantilevered, telescopic booms when used in lifting crane service.
【英文标准名称】:StandardTestMethodforFlexuralPropertiesofFiberReinforcedPultrudedPlasticRods
【原文标准名称】:纤维增强挤拉制塑料棒弯曲性能的标准试验方法
【标准号】:ASTMD4476-2003
【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】:D20.18
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:塑料;特性;试验;棒材
【英文主题词】:flexuralproperties;plasticrods;pultrudedproducts;thermosettingplastics
【摘要】:Flexuralpropertiesdeterminedbythistestmethodareespeciallyusefulforqualitycontrolandspecificationpurposes.Themaximumaxialfiberstressesoccuronalineundertheloadingnose.Theuseofthesemicircularcrosssectioneliminatesprematurecompressionshearthathasbeennotedinthree-pointflexuretestsonfull-roundrods.Flexuralpropertiesmayvarywithspecimendepth,temperature,atmosphericconditions,anddifferencesinrateofstraining.Beforeproceedingwiththistestmethod,referenceshouldbemadetothespecificationofthematerialbeingtested.Anytestspecimenpreparation,conditioning,dimensions,ortestingparameters,orcombinationthereof,coveredinthematerialsspecificationshalltakeprecedenceoverthosementionedinthistestmethod.Iftherearenomaterialspecifications,thenthedefaultconditionsapply.1.1Thistestmethodcoversthedeterminationoftheflexuralpropertiesoffiber-reinforcedpultrudedplasticrods.Thespecimenisarodwithasemicircularcrosssection,moldedorcutfromlengthsofpultrudedrods(see).Thistestmethodisdesignedforrodswithadiameterof1/2in.orgreater.Note18212;ThereisnoISOequivalentforthisstandard.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:
【英文标准名称】:Termsforrailwayvehicleparts;doors,fasteningdevices,door-stop,spring-boltlocks
【原文标准名称】:有轨机动车部件的名称.车门.门闩.锁止器.车门的球形捏手
【标准号】:DIN25622Bb.2-1966
【标准状态】:作废
【国别】:
【发布日期】:
【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】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
