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【英文标准名称】:Specificationforexternalmicrometers
【原文标准名称】:外径千分尺规范
【标准号】:BS870-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-11-30
【实施或试行日期】:2008-11-30
【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】:校准;尺寸公差;尺寸规格;外部;平面度测量;划刻度;线性测量;线性测量仪器;作标记;机械测试;千分尺;平行;精密度
【英文主题词】:Calibration;Dimensionaltolerances;Dimensions;External;Flatnessmeasurement;Graduations;Linearmeasurement;Linearmeasuringinstruments;Marking;Mechanicaltesting;Micrometers;Parallel;Precision
【摘要】:ThisBritishStandardappliestothefollowingtypesofexternalmicrometers.a)Externalmicrometershavingaframeholdingamicrometerspindleandnutononesideoppositeafixedanvilontheother,withindividualmeasuringrangesof:0-13mm;25mm(e.g.0-25mm,25-50mm,etc.,upto575-600mm)and0-?in;1in(e.g.,0-1in,1-2in,etc.,upto23-24in).b)Externalmicrometershavingaframeholdingamicrometerspindleandnutononesideoppositeananvilontheother,andprovidingfortwoormorealternativerangesofmeasurementeffectedbymeansofinterchangeableorslidinganvils,withindividualmeasuringrangesof:?0-50mm,0-100mm,100-200mm,200-300mm,300-400mm,400-500mmand500?600mm;or?0-2in,0-4in,4-8in,8-12in,12-16in,16-20inand20-24in.c)Settinggaugesformicrometersabove25mmor1in.NOTEAttentionisdrawntothefactthatmetricdimensionsarenotnecessarilydirectconversionsoftheimperialdimensions.
【中国标准分类号】:J42
【国际标准分类号】:17_040_30
【页数】:22P.;A4
【正文语种】:英语