ANSI PH2.21-1979 摄影(感光测定).彩色反转照相机胶片.ISO感光度的测定
时间:2024-05-11 19:58:08 来源: 标准资料网 作者：标准资料网 阅读：9457
【英文标准名称】:Photography(Sensitometry)-ColorReversalCameraFilms-DeterminationofISOSpeed
【原文标准名称】:摄影(感光测定).彩色反转照相机胶片.ISO感光度的测定
【标准号】:ANSIPH2.21-1979
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
Product Code:SAE AS1614
Title:Commercial Aircraft Towbar Attach Fitting Interface
Issuing Committee:Age-2c Vehicle Maintenance And Aircraft Servicing Committee
Scope:Operators of commercial passenger and cargo aircraft in unanimity will request aircraft manufacturers to follow this standard in the design of the nose gear (when towing operations are normally done from the nose gear) in conventional tricycle type landing gears.【英文标准名称】:StandardTestMethodforWindResistanceofConcreteandClayRoofTiles(AirPermeabilityMethod)
【原文标准名称】:混凝土和粘土屋面瓦抗风性的标准试验方法(空气渗透率法)
【标准号】:ASTMC1570-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:C15.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:airpermeabilitymethod;clayrooftile;concreterooftile;criticalupwardpressuredifference;upliftresistance;windresistance
【摘要】:Theairpermeabilityofroofingsystemsconstructedfromdiscreteelements,asisthecaseforclayandconcretetileandslateroofsystems,isacriticalfactorindeterminingthewindresistanceoftheroofsystem.Theabilityoftheroofsystemtorelievewind-inducedupliftpressuresasaresultoftheoverallairpermeabilityoftheroofassemblyrelatestotheresistanceoftheroofsystemtodamageinducedbywind.Naturalwindconditionsdifferwithrespecttointensity,duration,andturbulence;theseconditionsarebeyondthemeansofthistestmethodtosimulate.1.1Theairpermeabilityoftileroofingsystemsisacriticalfactorindeterminingthewindresistanceoftileroofingasappliedtoaroof.ThisStandarddescribesaprocedureformeasuringtheairpermeabilityofclayandconcretetileandslateroofsystemswhenappliedtoasmallsectionofroofdeckinaccordancewiththemanufacturer'sinstructions.1.2Thistestproceduremeasurestheairpermeabilityofalaidarrayofunsealedclayorconcreterooftilesorslates.Thetilesorslatesshallhaveathicknessbetween1/8-in.(3-mm)and2-in.(51-mm).1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q14
【国际标准分类号】:91_060_20(ROOFS)
【页数】:4P.;A4
【正文语种】: