【英文标准名称】:StandardTestMethodforDeterminingtheFocalSizeofIridium-192IndustrialRadiographicSources
【原文标准名称】:测定铱192工业X射线源的聚焦尺寸的标准试验方法
【标准号】:ASTME1114-2003
【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】:E07.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;X射线发生器;铱;泉;焦距;X射线技术;无损检验;射线摄影;金相学;金属
【英文主题词】:cylinder(s);focalsize;iridium192;radiographicsource;referencesample;sphere
【摘要】:Oneofthefactorsaffectingthequalityofaradiographicimageisgeometricunsharpness.Thedegreeofgeometricunsharpnessisdependentuponthefocalsizeofthesource,thedistancebetweenthesourceandtheobjecttoberadiographed,andthedistancebetweentheobjecttoberadiographedandthefilm.Thistestmethodallowstheusertodeterminethefocalsizeofthesourceandtousethisresulttoestablishsourcetoobjectandobjecttofilmdistancesappropriateformaintainingthedesireddegreeofgeometricunsharpness.1.1Thistestmethodcoversthedeterminationofthefocalsizeofaniridium-192radiographicsource.Thedeterminationisbaseduponmeasurementoftheimageoftheiridiummetalsourceinaprojectionradiographofthesourceassemblyandcomparisontothemeasurementoftheimageofareferencesampleinthesameradiograph.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N78
【国际标准分类号】:19_100
【页数】:5P.;A4
【正文语种】:


Product Code:SAE AS2094
Title:Test Methods for Tube-Fitting Assemblies
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope: This SAE Aerospace Standard (AS) specifies test methods for fitting assemblies used in aircraft fluid systems in the pressure classes B, D, and E (1500 psi, 3000 psi, and 4000 psi), and in temperatures types I, II and III (-65 to 160 掳 F, -65 to 275 掳F, and -65 to 400 degrees F) of AS2001. This document applies each time that it is referred to in a procurement specification or other definition document. Fluids and materials used for the tests are listed in Section 2.