ISO 10996-1999 摄影静止图像放映机噪声测定

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【英文标准名称】:Photography-Still-pictureprojectors-Determinationofnoiseemissions
【原文标准名称】:摄影静止图像放映机噪声测定
【标准号】:ISO10996-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-03
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC42
【标准类型】:()
【标准水平】:()
【中文主题词】:噪声测量;声学测量;定义;定义;幻灯放映机;电子仪器;声压级;摄影设备;摄影;声音传播;放映设备;静止图象
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiesthemeanstodetermine,declareandverifythenoiseemissioncharacteristics(soundpowerlevelandemissionsoundpressurelevelattheworkstation)ofstill-pictureprojectors.Itspecifiesnoisemeasurementmethodsandtheoperatingandmountingconditionsthatshallbeusedforthetest.TheuseofthisInternationalStandardensuresthereproducibilityofthedeterminationofthenoiseemissioncharacteristicswithinspecifiedlimitsdeterminedbythegradeofaccuracyofthebasicnoisemeasurementmethodused.NoisemeasurementmethodsallowedbythisInternationalStandardareengineeringmethods(grade2)andsurveymethods(grade3).Theengineeringgradeofaccuracy(grade2)ispreferredandisapplicable,forexample,totypetestsorfordeclarationandcomparisonpurposes.Thesurveygradeofaccuracy(grade3)isapplicable,forexample,toqualitycontrolpurposesduringmanufacture.Surveymethodsusuallyenablemeasurementstobemadeinworkrooms.
【中国标准分类号】:N42
【国际标准分类号】:17_140_20;37_040_10
【页数】:12P;A4
【正文语种】:英语