耳塞是一种防噪声个人防护用品。在噪声源还不能降到国家容许标准的情况下,佩戴耳塞是十分有效的措施。特别是对高频噪声,尤为有效。通常耳塞的隔声值可达到15—25分贝。 从“工业企业噪声卫生标准”颁布以来,对耳塞研制做了大量工作,研制出很多种新型耳塞。为了耳塞选型的准备。由北京市劳动保护科学研究所承担国内几种耳塞的声学测试工作。 Earplugs are a noise-protection personal protective equipment. In the case of noise sources can not be reduced to the national allowable standards, wearing earplugs is a very effective measure. Especially for high-frequency noise, especially effective. Usually earplugs noise up to 15-25 dB. Since the promulgation of the “Noise Standard for Industrial Enterprises”, a great deal of work has been done on the development of earplugs and many new earplugs have been developed. For earplug selection preparation. Beijing Institute of Labor Protection by the domestic several earplugs acoustic test.