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【英文标准名称】:StandardPracticeforOpticalDistortionandDeviationofTransparentPartsUsingtheDouble-ExposureMethod
【原文标准名称】:用双曝光法测定透明部件的光学畸变和偏差的标准实施规范
【标准号】:ASTMF733-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:F07.08
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:distortion;grid-lineslope;opticaldeviation;opticaldistortion;transparencyquality;Aerospacetransparentenclosures;Aircraftmaterials/applications;Deviation;Distortion;Double-exposuremethod;Grid-lineslope;Opticaldistortion/deviation;
【摘要】:Transparentparts,suchasaircraftwindshieldsandwindows,canbeinspectedusingthispractice,andtheamountofopticaldistortionordeviationcanbemeasured.Themeasurementcanbecheckedforacceptabilityagainstthespecificationforthepart.Thephotograph(digitalfile,printornegative)canbemaintainedasapermanentrecordoftheopticalqualityofthepart.1.1Thisphotographicpracticedeterminestheopticaldistortionanddeviationofalineofsightthroughasimpletransparentpart,suchasacommercialaircraftwindshieldoracabinwindow.Thispracticeappliestoessentiallyflatornearlyflatpartsandmaynotbesuitableforhighlycurvedmaterials.1.2TestMethodF801addressesopticaldeviation(angluardeviation)andTestMethodF2156addressesopticaldistortionusinggridlineslope.ThesetestmethodsshouldbeusedinsteadofPracticeF733wheneverpractical.1.3Thisstandarddoesnotpurporttoaddressthesafetyconcernsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A60
【国际标准分类号】:49_035
【页数】:5P.;A4
【正文语种】:英语