标准摘要
[中文适用范围]： 包含机电指标需规定的特性、性能要求和相关测量方法。 [外文原描述]： Gives the characteristics to be specified, performance requirements and the relevant methods of measurement for electromechanical volume indicators. The concept of 'volume' is a practical way of assigning a numerical value to the magnitude of electrical speech and music programme signals. The contents of the corrigendum of September 1991 have been included in this copy.
英文名称Sound system equipment. Part 17: Standard volume indicators