【英文标准名称】:Firetestsonbuildingmaterialsandstructures-Methodsformeasuringsmokepenetrationthroughdoorsetsandshutterassemblies-Methodofmeasurementunderambienttemperatureconditions
【原文标准名称】:建筑材料和构件燃烧试验.第31部分:烟雾穿透过门窗装配件测量方法.第1节:室温测量法
【标准号】:BS476-31.1-1983
【标准状态】:现行
【国别】:英国
【发布日期】:1983-10-31
【实施或试行日期】:1983-10-31
【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】:防火门;建筑系统构件;试验设备;标准温度;报告;数学计算;燃烧试验;漏泄试验;烟;门具;门;防止火灾扩散;挡火墙
【英文主题词】:Constructionsystemsparts;Doors;Doorsets;Firebarriers;Firedoors;Firespreadprevention;Firetests;Leaktests;Mathematicalcalculations;Reports;Smoke;Standardtemperature;Testequipment
【摘要】:Thismethodmeasuresairleakageofdoorandshutterassembliesunderambienttemperatureconditionsasbeingrepresentativeofsmokepenetrationoccurringfromtheearlystagesorataremotepositionfromafireoccurringinabuilding.
【中国标准分类号】:Q10
【国际标准分类号】:13_220_50
【页数】:12P.;A4
【正文语种】:英语


【英文标准名称】:Specificationforbinaryfloatingpointarithmeticformicroprocessorsystems
【原文标准名称】:微处理器系统二进制浮点算法规范
【标准号】:BS7237-1990
【标准状态】:现行
【国别】:英国
【发布日期】:1990-07-31
【实施或试行日期】:1990-07-31
【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】:二进制算术;函数;微处理机;算术;算术运算;数值修约;数字计算机;计算机
【英文主题词】:Arithmetic;Binary;Binaryarithmetic;Computerhardware;Computersoftware;Dataprocessing;Definition;Definitions;Floatingpoint;Floating-pointarithmetic;Floating-pointnumbers;Informationprocessing;Mathematics;Microprocessors;Semiconductordevices
【摘要】:1ImplementationobjectivesItisintendedthatanimplementationofafloating-pointsystemconformingtothisstandardcanberealizedentirelyinsoftware,entirelyinhardware,orinanycombinationofsoftwareandhardware.Itistheenvironmentthattheprogrammeroruserofthesystemseesthatconformsorfailstoconformtothisstandard.Hardwarecomponentsthatrequiresoftwaresupporttoconformshallnotbesaidtoconformapartfromsuchsoftware.2InclusionsThisstandardspecifies:1)basicandextendedfloating-pointnumberformats;2)add,subtract,multiply,divide,squareroot,remainderandcompareoperations;3)conversionsbetweenintegerandfloating-pointnumbers;4)conversionsbetweendifferentfloating-pointformats;5)conversionsbetweenbasicformatfloating-pointnumbersanddecimalstrings,and6)floating-pointexceptionsandtheirhandling,includingnon-numbers(NaNs).3ExclusionsThisstandarddoesnotspecify:1)formatsofdecimalstringsandintegers;2)interpretationofthesignsandsignificantfieldsofNaNs,or3)binary←→decimalconversionstoandfromextendedformats.
【中国标准分类号】:L60
【国际标准分类号】:35_160
【页数】:26P;A4
【正文语种】:英语