BS A 323-1998 十二角驱动.扳手外形.公制系列

上一篇: BS EN 3237-1998 内螺纹镀银耐热镍基合金NI-P100HT(因康镍合金718)薄壁、自锁紧、长式插入件
下一篇: BS 3M 60-1998 液压系统24度锥形可分管道接头.通用规范

【英文标准名称】:Non-destructivetesting-Aidstovisualinspection-Selectionoflow-powermagnifiers
【原文标准名称】:无损试验.目测检验辅助设备.低倍放大镜的选择
【标准号】:BSISO3058-1998
【标准状态】:现行
【国别】:英国
【发布日期】:1998-05-15
【实施或试行日期】:1998-05-15
【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】:光学仪器;照度;外观检查(试验);试验设备;宏观检查;透镜;选择;无损检验;放大镜;尺寸
【英文主题词】:Finishes;Lenses;Magnifiers;Metallicsurfaces;Non-destructivetesting;Properties;Surfaceinspections;Testequipment;Testing;Visualinspection(testing)
【摘要】:1ThisInternationalStandardspecifiesthecharacteristicsofthefollowingtypesoflow-powermagnifiersandgivesrecommendationsfortheirselectionfortheinspectionofsurfaces.—Single-elementmagnifiersofmagnificationtypicallyupto×4(TypeA).—Multi-elementmagnifiersofmagnificationtypicallyupto×10(TypeB).—Twin-systemmagnifiersofmagnificationtypicallyupto×15(TypeC),categorizedasfollows:a)binocular,normallywithalongworkingdistance(TypeC.1);b)bi-ocular,includingthoserefinedwithstopsorotherattachments,forquasi-stereoscopicvision(TypeC.2).—Concave-mirrormagnifierswithfront-surfacereflectorsinpowerstypicallyupto×6(TypeD).2ThisInternationalStandardisnotconcernedwith:—watch-makers'loupesandspectacles;—single-element,spherical-orcylindrical-lensmagnifiersinwhicheitherthelensorthelens-mountrestsonthesurfaceoftheobjecttobeexamined(thisincludesmagnifiersprovidedwithanyformofgraduatedscaleforthepurposeofmeasurement);—plasticlenssacs,liquid-filled;—magnifiersintendedfortheexaminationofinternalsurfaces.
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:14P;A4
【正文语种】:英语