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本标准等效用国际标准ISO7731-1986《工作场所的险情信号——险情听觉信号》。 1.主题内容与适用范围本标准规定了险情听觉信号的安全要求、测试方法和设计准则。本标准适用于工作场所,特别是高声级环境噪声工作场所;他不适用于用语言表达的危险警告(例如呼喊、扬声器广播等)。公害和公共交通运输等方面的专门规定不受本标准的影响。 2.引用标准 GB 3240 声学测量中的常用频率 GB 3241 声和振动分析的1/1和1/3倍
This standard is equivalent to the international standard ISO7731-1986 “workplace danger signal - danger auditory signal.” 1. Thematic content and scope This standard specifies the safety requirements of auditory signals, test methods and design criteria. This standard applies to the workplace, especially high-noise environment noise workplace; he does not apply to the language of danger warnings (such as shouting, speaker radio, etc.). Special regulations on pollution and public transport are not affected by this standard. 2. Reference Standard GB 3240 commonly used in acoustic measurements GB 3241 sound and vibration analysis of 1/1 and 1/3