ISO 8485-1989 程序设计语言APL
时间:2024-05-20 04:42:50 来源: 标准资料网 作者：标准资料网 阅读：8358
【英文标准名称】:Programminglanguages;APL
【原文标准名称】:程序设计语言APL
【标准号】:ISO8485-1989
【标准状态】:现行
【国别】:国际
【发布日期】:1989-11
【实施或试行日期】:1989-11-01
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:数据处理;信息处理;计算机程序;计算机;信息交流;程序交换;字符集;程序设计;程序设计语言;程序设计语言
【英文主题词】:APL;Charactersets;Computerprograms;Computers;Dataprocessing;Informationexchange;Informationprocessing;Programinterchange;Programming;Programminglanguages
【摘要】:DescribesthesemanticsandsyntaxoftheAPLprogamminglanguageandtheenvironmentfortheapplication,interchangeandtheportabilityofAPLprograms.Definesrequirementsforconformancewiththestandard.
【中国标准分类号】:L74
【国际标准分类号】:35_060
【页数】:275P.;A4
【正文语种】:英语
【英文标准名称】:Resilientfloorcoverings-Determinationoftheelectricalresistance;GermanversionEN1081:1998
【原文标准名称】:弹性铺地材料.电阻测定
【标准号】:EN1081-1998
【标准状态】:现行
【国别】:
【发布日期】:1998-04
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电阻;弹性的;弹性织物;铺地织物;测定;定义;测量;抽样方法;试验;地板覆盖物
【英文主题词】:Definition;Definitions;Determination;Elastic;Elasticfabrics;Electricalresistance;Floorcoverings;Measurement;Samplingmethods;Testing;Textilefloorcoverings
【摘要】:
【中国标准分类号】:W59
【国际标准分类号】:97_150
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:StandardGuidetoObtainableASTMEquivalentPenetrameterSensitivityforRadiographyofSteelPlates1/4to2in.[6to51mm]ThickwithXRaysand1to6in.[25to152mm]ThickwithCobalt-60
【原文标准名称】:用X射线法作1/4至2英寸(6-51mm)厚钢板的射线照相及用钴-60作1至6英寸(25-152mm)厚钢板的射线照相以获得ASTM等效穿透计敏感性的标准指南
【标准号】:ASTME592-1999(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【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】:E07.02
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:cobalt60;density;equivalentpenetrametersensitivity;exposure;referenceradiographicillustrations;Xrays;Cobalt-60radiography;Density;Equivalentpenetrameter;Exposuretests;Penetrameters;Radiographicexamination;Referenceradiographs;S
【摘要】:Akeyconsiderationwithanyradiographicsystemisitscapabilitytoresolvedetail(thatis,sensitivity).Thedegreeofobtainablesensitivitywithagivensystemisdependentuponseveralradiographicparameterssuchassourceenergylevel,filmtype,typeandthicknessofintensifyingscreens,exposure(density),etc.ThisguidepermitstheusertoestimatethedegreeofsensitivitythatmaybeobtainedwithXraysandcobalt-60gammarayswhenusingaprescribedsetofradiographicparameters.ThisguidemayalsobeusedinconjunctionwithTestMethodE746toprovideabasisfordevelopingdataforevaluationofauser''sspecificsystem.Thisdatamayassistauserindeterminingappropriateparametersforobtainingdesireddegreesofradiographicsystemsensitivity.AnalternatetothisapproachistheuseofthoseadjunctradiographicillustrationsdetailedinSection6.1.1Thisguidetoobtainableequivalentpenetrametersensitivitycoverstheminimumpenetrameterthicknessesforwhichtheimageofthe1Tand2Tholesisvisibleforafewpracticalradiographicconditions.Thevaluesrepresentnearoptimumsensitivityforflatsteelplates.Radiographicconditionsthatgivehighervaluesofscatterbuildupfromthespecimenorbackscatteredradiationattheimageplanewillgivepoorersensitivity.1.2EightradiographsthatillustratesensitivitiesobtainablewithpracticalradiographicsystemsareincludedasadjunctstothisguideandmaybeobtainedfromASTM.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:77_040_20
【页数】:5P.;A4
【正文语种】:英语