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工业生产中的噪声危害早已被人们所关注。保护生产者听力,采用个人防护用具,是目前国内外学者十分重视的措施之一。由于听力保护器(HPDs)中的耳塞隔声性能较好、佩戴简便、造价低廉而被广泛推广应用。工业发达国家普遍采用耳塞预防噪声危害,并进一步研制性能更佳的耳塞和评价其性能的方法,并先后制定了评价标准和使用制度。我国于1986年公
The noise hazard in industrial production has long been concerned by people. Protecting producers’ hearing and using personal protective equipment is one of the measures that scholars at home and abroad attach great importance to. As hearing protectors (HPDs) earplugs sound better performance, easy to wear, low cost and has been widely promoted. Earplugs are widely used in industrialized countries to prevent noise damage, and further development of better performance ear plugs and methods to evaluate their performance, and has developed a evaluation criteria and the use of the system. My country in 1986 public