BS EN ISO 389-1:2018规定了适用于听力阈值等级的标准参考零点 对纯音空气传导听力计，促进一致性和一致性的表达 世界各地的听力阈值水平测量。它以适合直接应用于听力计校准的形式说明了信息 是指通用超听觉耳机的参考等效阈值声压级 4.2中规定，在符合IEC 60318-1的耳模拟器上测量，并根据特定型号进行测量 IEC 60318-3声学耦合器和IEC 60318-1的两个附加表格中给出的数据 耳朵模拟器。这些数据是基于对各个标准化组织提供的信息的评估 负责听力标准和科学出版物的实验室。交叉引用:IEC 60318-3IEC 60318-1:2009 ANSI/ASA S3。6-2010ISO 389-9ISO 7029购买本文件时提供的所有当前修订版均包含在购买本文件中。

BS EN ISO 389-1:2018 specifies a standard reference zero for the scale of hearing threshold level applicable to pure-tone air conduction audiometers, to promote agreement and uniformity in the expression of hearing threshold level measurements throughout the world.It states the information in a form suitable for direct application to the calibration of audiometers, that is, in terms of the reference equivalent threshold sound pressure levels of generic supra-aural earphones specified in 4.2, measured on an ear simulator complying with IEC 60318-1 and in terms of modelspecific data given in two additional tables for the IEC 60318-3 acoustic coupler and the IEC 60318-1 ear simulator, respectively.The data are based on an assessment of the information available from the various standardizing laboratories responsible for audiometric standards and from scientific publications.Cross References:IEC 60318-3IEC 60318-1:2009ANSI/ASA S3.6-2010ISO 389-9ISO 7029All current amendments available at time of purchase are included with the purchase of this document.