Hearing conservation听力保护概要1.ppt

2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name 2 3 4 5 6 1 Use Page Name Audiometric testing is required to detect any hearing loss for any employees exposed to excessive noise. Master Content Page | Chapter 6 – Audiometric testing | Page 1 of 2 Audiometric Testing 听力测试 听力测试是针对高噪声暴露的员工,检查是否听力损失。 Hearing is measured at different ‘tones’ and at different dB’s or levels of loudness. 按不同的音调和不同的分贝或响度级进行听力测试。 HZ Typically measured are: 典型的测量HZ为： 500 1,000 2,000 3,000 4,000 6,000 8,000 What does the audiogram tell us? Master Content Page | Chapter 6 – Audiometric testing | Page 2 of 2 听力图说明了什么？ Degree of impairment 听力损伤程度 Speech intelligibility 语言可懂度 Relationship between the two ears 两只耳朵间的关系 Configuration of hearing loss 听力损失结构 正常 轻微 中等 中等严重 严重 永久性 There is no cure for hearing loss due to “insult” noise (i.e. Ipods, loud music) Master Content Page | Chapter 7 – Summary | Page 1 of 1 由于“损害”噪音（例如Ipod音乐播放器、喧闹音乐），所以对听力损失无治疗作用。 Hearing protection is no good if you don’t use it. 如果不使用，听力保护装置就没任何意义。 Anyone who may expose to noise MUST wear hearing protection when in their work area or while in manufacturing. 任何可能暴露在噪音环境下员工必须要配戴听力保护装置，当他们在工作区域或制造过程中时。 如何考虑噪音影响 与NIOSH推荐的噪音暴露极限强度对比 增加3分贝,暴露时间减少一半 噪音强度 未保护暴露极限时间 Multiple Choice Question Which of the following is a disadvantage to wearing hearing protection? Multiple Choice | Quiz Question 1 | Page 1 of 10 The wrong size may make your ear/ear canal ache It potentially protects you from hearing loss It’s easy to keep them clean There is a wide variety to choose from Yes No No No Correct, Wrong size can make your ear/ear canal ache, must be the rig