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中华人民共和国工业企业厂界噪声标准１．标准的适用范围本标准适用于工厂及有可能造成噪声污染的企事业单位的边界。２．标准值各类厂界噪声标准值如下：类别昼间夜间一类５５分贝４５分贝二类６０分贝５０分口三类６５分贝５５分贝四类７０分贝５５分贝３各类标准适用范...
People’s Republic of China industrial enterprises boundary noise standards 1. The scope of the standard This standard applies to factories and may cause noise pollution of enterprises and institutions border. 2. Standard values of various types of noise at the boundary of the factory as follows: Category Daytime Night A Class 55 dB 45 dB Class II 60 dB 50 Port Three categories 65 dB 55 dB Four categories 70 dB 55 dB 3 Various types of standards for the ...