ASTM F 712-2006 工人防护用电绝缘塑料防护设备的标准试验方法和规范
作者:标准资料网 时间:2024-04-28 06:01:26 浏览:9831
来源:标准资料网
【英文标准名称】:StandardTestMethodsandSpecificationsforElectricallyInsulatingPlasticGuardEquipmentforProtectionofWorkers
【原文标准名称】:工人防护用电绝缘塑料防护设备的标准试验方法和规范
【标准号】:ASTMF712-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006
【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】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;电气绝缘;电气保护设备;雇员;保健;绝缘;职业安全;塑料;试验
【英文主题词】:Electricalengineering;Electricalinsulation;Electricalprotectionequipment;Employees;Healthprotection;Insulations;Occupationalsafety;Plastics;Testing
【摘要】:
【中国标准分类号】:K09;C66
【国际标准分类号】:13_260
【页数】:5P;A4
【正文语种】:英语
基本信息
标准名称: | 城镇供热管网维修技术规程(附条文说明) |
中标分类: |
工程建设 >>
供热、供气、空调及制冷工程 >>
供热、采暖工程 |
发布日期: | |
实施日期: | 2001-04-01 |
首发日期: | |
作废日期: | |
出版日期: | |
页数: | 32页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类: 工程建设 供热 供气 空调及制冷工程 供热 采暖工程
【英文标准名称】:Informationtechnology.Languageindependentarithmetic.Elementarynumericalfunctions
【原文标准名称】:信息技术.独立于语言的算术.基本数值函数
【标准号】:BSISO/IEC10967-2-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2001-08-24
【实施或试行日期】:2001-08-24
【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】:算术;计算机软件;数据处理;定义(术语);信息技术;接口(数据处理);数学分析;数值分析;编制程序;程序设计语言
【英文主题词】:Arithmetic;Computersoftware;Dataprocessing;Definitions;Informationtechnology;Interfaces(dataprocessing);Mathematicalanalysis;Numericalanalysis;Programming;Programminglanguages
【摘要】:ThispartofISO/IEC10967definesthepropertiesofnumericalapproximationsformanyoftherealelementarynumericalfunctionsavailableinstandardlibrariesforavarietyofprogramminglanguagesincommonuseformathematicalandnumericalapplications.Animplementormaychooseanycombinationofhardwareandsoftwaresupporttomeetthespecificationsofthispart.Itisthecomputingenvironment,asseenbytheprogrammer/user,thatdoesordoesnotconformtothespecifications.Thetermimplementation(ofthispart)denotesthetotalcomputingenvironmentpertinenttothispart,includinghardware,languageprocessors,subroutinelibraries,exceptionhandlingfacilities,othersoftware,anddocumentation.1InclusionsThespecificationsofpart1areincludedbyreferenceinthispart.Thispartprovidesspecificationsfornumericalfunctionsforwhichalloperandvaluesareofintegerorfloatingpointdatatypessatisfyingtherequirementsofpart1.Boundariesfortheoc-currenceofexceptionsandthemaximumerrorallowedareprescribedforeachspecifiedoperation.Alsotheresultproducedbygivingaspecialvalueoperand,suchasaninfinity,oraNaN,isprescribedforeachspecifiedfloatingpointoperation.ThispartcoversmostnumericalfunctionsrequiredbytheISO/IECstandardsforAda[11],Basic[16],C[17],C++[18],Fortran[22],ISLisp[24],Pascal[27],andPL/I[29].Inparticular,specificationsareprovidedfor:a)Someadditionalintegeroperations.b)Someadditionalnon-transcendentalfloatingpointoperations,includingmaximumandmin-imumoperations.c)Exponentiations,logarithms,andhyperbolics.d)Trigonometries,bothinradiansandforargument-givenangularunitwithdegreesasaspecialcase.Thispartalsoprovidesspecificationsfor:e)Conversionsbetweenintegerandfloatingpointdatatypes(possiblywithdifferentradices)conformingtotherequirementsofpart1,andtheconversionoperationsused,forexample,intextinputandoutputofintegerandfloatingpointnumbers.f)TheresultsproducedbyanincludedfloatingpointoperationwhenoneormoreargumentvaluesareIEC60559specialvalues.g)Program-visibleparametersthatcharacterisecertainaspectsoftheoperations.2ExclusionsThispartprovidesnospecificationsfora)Numericalfunctionswhoseoperandsareofmorethanonedatatype(withoneexception).Thispartneitherrequiresnorexcludesthepresenceofsuch"mixedoperand"operations.b)Anintervaldatatype,ortheoperationsonsuchdata.Thispartneitherrequiresnorexcludessuchdataoroperations.c)Afixedpointdatatype,ortheoperationsonsuchdata.Thispartneitherrequiresnorexcludessuchdataoroperations.d)Arationaldatatype,ortheoperationsonsuchdata.Thispartneitherrequiresnorexcludessuchdataoroperations.e)Complex,matrix,statistical,orsymbolicoperations.Thispartneitherrequiresnorexcludessuchdataoroperations.f)Thepropertiesofarithmeticdatatypesthatarenotrelatedtothenumericalprocess,suchastherepresentationofvaluesonphysicalmedia.g)Thepropertiesofintegerandfloatingpointdatatypesthatproperlybelonginprogramminglanguagestandardsorotherspecifications.Examplesinclude1)thesyntaxofnumeralsandexpressionsintheprogramminglanguage,2)thesyntaxusedforparsed(input)orgenerated(output)characterstringformsfornumeralsbyanyspecificprogramminglanguageorlibrary,3)theprecedenceofoperatorsintheprogramminglanguage,4)thepresenceorabsenceofautomaticdatatypecoercions,5)therulesforassignment,parameterpassing,andreturningvalue,6)theconsequencesofapplyinganoperationtovaluesofimproperdatatype,ortounini-tialiseddata.Furthermore,thispartdoesnotprovidespecificationsforhowtheoperationsshouldbeimple-mentedorwhichalgorithmsaretobeusedforthevario
【中国标准分类号】:L74
【国际标准分类号】:35_060
【页数】:190P.;A4
【正文语种】:英语