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本文参考ISO/DIS1999·2(1985)《声学──职业性噪声测定与噪声引起的听力损伤评价》资料,结合我国“工业企业噪声卫生标准”,对九省市九个行业、1034个工厂、11794个声源和部分噪声暴露者听力等的实测结果,采用ISO/DIS19999·2标准中给出的LAeq的计算公式及对噪声暴露工人听阈值的计算公式求得其听阈值(HTLAN),按高斯分布法取得暴露声级LEX,8h为85、90、95、100dB的工人听阈频率在500、1000、2000、3000、4000、6000Hz的不同工龄组噪声暴露人群的听阈值(HTLAN)及职业性非噪声暴露人群听阈值(HTLA)的关系值。研究结果证明ISO/DIS1999·2也适用于我国。
According to ISO / DIS1999.2 (1985) “Acoustics - Assessment of Occupational Noise and Noise-Induced Hearing Impairment”, combined with China’s “Noise Standard for Industrial Enterprises”, this paper analyzes nine industries, 9 industries, 1034 factories, 11794 sound sources and part of the noise exposure of the actual measured results, the use of LAeq given in the ISO / DIS19999 2 standard formula and listen to the threshold of noise exposure workers to obtain the threshold value (HTLAN), according to Gaussian distribution method to obtain the exposure level LEX, 8h 85,90,95,100dB workers listening threshold frequency 500,1000,2000,3000,4000,6000 Hz in different age groups noise exposure of the crowd hearing threshold (HTLAN) and occupational The value of the hearing threshold (HTLA) in non-noise-exposed subjects. The results show that ISO / DIS1999.2 is also suitable for our country.