本标准提供了用于测量人类外耳道内声阻抗、声导纳或两者的仪器规范。定义了适用于这些仪器和相关测量的术语。仪器分为四类。然后提供特性、规格和建议的校准程序。本标准中的材料适用于测量听觉声阻抗和导纳的仪器的用户和制造商。

This standard provides specifications for instruments designed to measure acoustic impedance, acoustic admittance, or both quantities, within the human external ear canal. Terms that apply to these instruments and to related measurements are defined. Four types of instruments are classified. Characteristics, specification, and recommended cailibration procedures then are provided. Material within this standard is intended both for users and for manufacturers of instruments that measure aural acoustic impedance and admittance.