作者:标准资料网 时间:2024-05-14 01:01:30   浏览:8931   来源:标准资料网

【英文标准名称】:Recommendationsforthepresentationofplasticsdesigndata-Generalintroduction
【原文标准名称】:塑料设计数据表示方法推荐标准.总则
【标准号】:BS4618Introduction-1970
【标准状态】:现行
【国别】:英国
【发布日期】:1970-08-28
【实施或试行日期】:1970-08-28
【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】:数据表示;设计;数据组织;高聚物;塑料;SI制;产品设计
【英文主题词】:datarepresentation;sisystem(metric);productdesign;dataorganization;design;polymers;plastics
【摘要】:TheobjectoftheseRecommendationsistorationalizethepresentationofdataonthepropertiesofplasticsmaterialsforuseinthefieldofdesignengineering.Theinformationavailableatpresentisusuallybasedontheresultsoftestsdesignedforqualitycontrolandisthereforeofrestrictedvaluetothedesigner.ForqualitycontrolpurposesithasgenerallybeensufficienttomeasureasinglevalueofagivenpropertyundercloselydefinedtestconditionsandthetestproceduresgiveninBritishandothernationalstandardsusuallyindicateonlya'singlepoint'value.Ontheotherhand,satisfactoryengineeringdesignneedstobebasedoninformationcoveringboththemagnitudeandtrendsinthepropertiesofmaterialsunderconditionssimulatingthoseexperiencedinpractice.Plasticsaremoresensitivethanmanymaterialstoenvironmentalchanges,andtheirpropertiesmayvarywidelywithtemperature,humidityandotherserviceconditions,andwithtime.Moreover,theperformanceofplasticsarticlesisusuallymarkedlyaffectedbythemethodandconditionsoftheirmanufacture.Therefore,topredicttheirlikelybehaviourinserviceitisnecessarytohavea'field'or'spectrum'ofinformationshowinghowapropertychangeswithtime,temperatureandtheotherimportantvariables.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:6P;A4
【正文语种】:英语