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ASA S1.25-1991(R2020)
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American National Standard Specification for Personal Noise Dosimeters
美国国家标准个人噪声剂量计规范
本标准包含测量标准声暴露百分比的个人噪声剂量计的性能特性规范。该标准规定了三种汇率:每增加一倍暴露时间,3 dB、4 dB和5 dB。本标准规定了整个仪器的公差,包括频率响应、指数
平均值(采用慢速和快速)、阈值、动态范围和其他特征。它规定,在没有佩戴仪器的人在场的情况下,仪器在随机入射声场中可以达到这些公差。
This Standard contains specifications for performance characteristics of personal noise dosimeters which measure the percentage criterion sound exposure. The Standard makes provision for three exchange rates: 3 dB, 4 dB, and 5 dB per doubling of exposure time. The Standard provides tolerances for the entire instrument including frequency response, exponential
averaging (employing SLOW and FAST), threshold, dynamic range, and other characteristics. It specifies that these tolerances be attained by the instrument in a random incidence sound field without the presence of a person wearing the instrument.