标准摘要
[中文适用范围]： 本文件包含有关呼吸防护装置与人体听觉和言语功能之间相互作用的信息。 [外文原描述]： This document contains information related to the interaction between respiratory protective devices and the human body functions of hearing and speech.
英文名称Respiratory protective devices — Human factors — Part 7: Hearing and speech