ISO 389-2:1994-声学——测听设备校准参考零点第2部分:纯音和插入式耳机的参考等效阈值声压级 -国家数字标准馆

现行 ISO 389-2:1994

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Acoustics — Reference zero for the calibration of audiometric equipment — Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones 声学——测听设备校准参考零点第2部分:纯音和插入式耳机的参考等效阈值声压级

发布日期： 1994-07-07

规定了ISO 389:1991（重新发布为ISO 389-1）中规定的补充水平。给出的值适用于Eytomotic Research ER-3A型插入式耳机，该耳机通过ER-3-14型耳塞与人耳相连。

Specifies levels supplementary to those specified in ISO 389:1991 (to be re-issued as ISO 389-1). Values given are applicable to insert earphones of type Etymotic Research ER-3A, coupled to the human ear by ear inserts of type ER-3-14.

分类信息

发布单位或类别：国际组织-国际标准化组织

ICS分类： 13.140环保、保健和安全 - 噪声(与人有关的)

关联关系

研制信息

归口单位： ISO/TC 43

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