【英文标准名称】:ManualPure-ToneThresholdAudiometry,Methodfor
【原文标准名称】:人工纯音阈值测听方法
【标准号】:ANSIS3.21-2004
【标准状态】:现行
【国别】:美国
【发布日期】:2004-04-08
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ASA(ASCS3)
【标准类型】:()
【标准水平】:()
【中文主题词】:听力测定;听力试验;测量方法
【英文主题词】:audiometry;hearingabilitytests;methodsformeasuring
【摘要】:ThisStandardprovidesaprocedureforpure-toneaudiometrythatwillservetheneedsofpersonsconductingthresholdmeasurementsinindustry,schools,medicalsettings,andotherareaswherevalidaudiometricthresholdmeasurementsareneeded.
【中国标准分类号】:A42
【国际标准分类号】:13_140
【页数】:
【正文语种】:英语


Product Code:SAE J576
Title:Plastic Material or Materials for Use in Optical Parts Such as Lenses and Reflex Reflectors of Motor Vehicle Lighting Devices
Issuing Committee:Lighting Materials Standards Committee
Scope: This SAE Recommended Practice provides test methods and requirements to evaluate the suitability of plastic materials intended for optical applications in motor vehicles. The tests are intended to determine physical and optical characteristics of the material only. Performance expectations of finished assemblies, including plastic components, are to be based on tests for lighting devices, as specified in SAE Standards and Recommended Practices for motor vehicle lighting equipment. Field experience has shown that plastic materials meeting the requirements of this document and molded in accordance with good molding practices will produce durable lighting devices.