护耳器的声学性能,目前普遍采用以主观判断法获得的声衰减量来表征,它是从裸耳和闭耳的阈值差计算而得。由于测量中存在着主观和客观方面许多因素的影响,其结果在在有很大差异。在探讨这一测量方法的规范化时,本文首先对目前现有各国标准进行评论,并对测试场所的允许噪声级、声场条件、测试人员的选择、测试方法和测试信号等方面,结合我们的工作经验提出一些看法。此外,测量结果的统计资料可以对护耳器性能的评比或排队提供一些实验结果。 The acoustic performance of the ear protectors is currently characterized by the amount of acoustic attenuation obtained by subjective judgment, which is calculated from the threshold difference between the bare ear and the closed ear. Due to the subjective and objective aspects of measurement, there are many differences in the results. In discussing the standardization of this measurement method, this paper firstly reviews the existing national standards and then combines our work in terms of permissible noise levels, sound field conditions, testers’ selection, test methods and test signals at test sites Experience to make some comments. In addition, the statistics of the measurements provide some experimental results on the evaluation or queuing of the ear protector performance.