ASME PTC 19.14-1958 装置和仪器.第14部分:线性测量

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【英文标准名称】:Instrumentsandapparatus-Part14:Linearmeasurements
【原文标准名称】:装置和仪器.第14部分:线性测量
【标准号】:ASMEPTC19.14-1958
【标准状态】:作废
【国别】:美国
【发布日期】:1958
【实施或试行日期】:
【发布单位】:美国机械工程师协会(ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:千分尺;游标卡尺;线性测量;尺寸计量;测量技术;测量仪器;线性尺寸;卷尺
【英文主题词】:Dimensionalmetrology;Lineardimensions;Linearmeasurement;Measuringinstruments;Measuringtapes;Measuringtechniques;Micrometers;Verniercalipers
【摘要】:Theinstrumenttobeusedtoobtainthelineardimensionofanobjectwilldependonitscontourand/orlocationandthedegreeofaccuracydesired.Rules,scales,tapes,calipers,depthgages,etc,areusedforsuchmeasurements.Someofthemaredirectmeasuringinstrumentsandothersarecomparisoninstrumentswhichmustbereferredtoappropriatestandardsordirectmeasuringinstruments.Thelineardimensionsofpracticallyanyobjectaresubjecttovariationdependingonthetemperatureoftheobject.Allstandardsoflengtharecalibratedat68F(20C)andallmeasuringinstrumentsareintendedtobecorrectwithinmanufacturinglimitsatthattemperature.Atanyothertemperaturetheyarenecessarilysomeothersize,butifthemeasuringinstrumentandobjecttobemeasuredareofthesamematerialtheywillchangeequalamountsattemperaturesotherthan68Fandnoerrorwillbeintroduced.Fordissimilarmaterialsonlythedifferenceinexpansionorcontractionbetweenthemeasuringinstrumentandthemeasuredobjectneedbetakenintoaccount.
【中国标准分类号】:N13
【国际标准分类号】:17_040_30
【页数】:14P;A4
【正文语种】:英语