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【英文标准名称】:StandardTestMethodforCoefficientofFriction,YarntoSolidMaterial
【原文标准名称】:固体材料纱线摩擦系数的标准试验方法
【标准号】:ASTMD3108-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D13.58
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:系数;摩擦;摩擦系数;固体;试验;纺织试验;纺织材料;纱
【英文主题词】:coefficientoffriction;yarn
【摘要】:1.1Thistestmethodcoversthemeasurementofthekineticfrictionalpropertiesofamovingyarnincontactwithasolidmaterial.Fordeterminingyarn-to-yarnfriction,refertoTestMethodD3412.1.2Thistestmethodspecifiesarelativespeedof100m/min.Thetestmethodmaybeusedatotherspeeds,althoughwithapossiblechangeinprecisionandcoefficientoffriction.1.3Thistestmethodcoversthemeasurementofthecoefficientofkineticfrictionbetweenyarnandsolidsurfaceorsurfacesofconstantradiusinthecontactarea.Ifayarnofuniformvalueisused,comparisonsoffrictionalpropertiesofdifferentsolidmaterialscanbemadewithrelationtothatyarn.Ifagivensolidmaterialisused,comparisonsoffrictionalpropertiesofdifferentyarns,oryarnswithdifferentfinishes,canbemadewithrelationtothatparticularsolidmaterial.1.4Thistestmethodspecificallyrecommendswrapanglesof3.14and6.28radian(180and360),butotherwrapanglesmaybeused,againwithapossiblechangeinprecisionandlevel.Theangleofwrapshouldnotbesogreat,especiallyforyarnshavinghighcoefficientsoffriction,thatitcausestheoutputtensiontoexceedtheyieldvaluefortheyarnbeingtested.Also,ineverycasetheangleofwrapshouldnotbelessthan1.57rad(90).1.5Thistestmethodhasbeenappliedtoyarnshavinglineardensitiesrangingbetween10and80tex(90and720denier)andhavingcoefficientsoffrictionrangingbetween0.1and0.5butmayalsobeusedwithyarnsoutsidetheserangesoflineardensitiesandcoefficientsoffriction.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection7.
【中国标准分类号】:W04
【国际标准分类号】:59_080_20
【页数】:6P.;A4
【正文语种】:


【英文标准名称】:Informationtechnology.Securitytechniques.Informationsecuritymanagementforinter-sectorandinter-organizationalcommunications
【原文标准名称】:信息技术.安全技术.部门间和组织间通信用信息安全管理
【标准号】:BSISO/IEC27010-2012
【标准状态】:现行
【国别】:英国
【发布日期】:2012-04-30
【实施或试行日期】:2012-04-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:通道;译码;密码;数据通信;数据交换;数据安全;定义(术语);事故;信息安全;信息技术;IT安全
【英文主题词】:Access;Coding;Cryptographic;Datacommunication;Dataexchange;Datasecurity;Definitions;Incidents;Informationsecurity;Informationtechnology;ITsecurity
【摘要】:
【中国标准分类号】:L70
【国际标准分类号】:35_040
【页数】:48P;A4
【正文语种】:英语