ISO 7240-24:2016规定了用于在火灾探测和报警系统与建筑物居住者之间广播火灾警报的扬声器的要求、试验方法和性能标准（见ISO 7240-1:2014，图1，C项）。 ISO 7240-24:2016规定了两种应用环境的扬声器:A型，通常用于室内使用，B型，通常用于室外使用。 ISO 7240-24:2016不包括特殊应用的扬声器，例如危险应用中使用的扬声器，如果此类应用需要额外或其他要求或测试，而非ISO 7240本部分给出的要求或测试。 ISO 7240-24:2016不适用于可寻址扬声器或带有有源元件的扬声器。 ISO 7240-3中涵盖了声音报警指示器。

ISO 7240-24:2016 specifies requirements, test methods and performance criteria for loudspeakers intended to broadcast a warning of fire between a fire detection and alarm system and the occupants of a building (see ISO 7240？1:2014, Figure 1, item C). ISO 7240-24:2016 specifies loudspeakers for two types of application environment: type A, generally for indoor use, and type B, generally for outdoor use. ISO 7240-24:2016 does not cover loudspeakers for special applications, for example, loudspeakers for use in hazardous applications, if such applications require additional or other requirements or tests other than those given in this part of ISO 7240. ISO 7240-24:2016 is not intended to cover addressable loudspeakers or loudspeakers with active components. Audible alarm indicators are covered in ISO 7240？3.