PPE

How to define the scope of hearing protection and carry out physical examination of noise occupational hazards

Netizen Zeng Zejun: our company is a production line assembly industry. 1ts production site is a large workshop with an area of 20000 square meters. There are occupational hazards with noise exceeding 85dB (a) in some operating posts. How to define the scope of hearing protection and conduct physical examination of occupational hazards with noise? The details are as follows:

1. All assembly workers must include pure hearing test in the physical examination. Do managers who often go to the workshop to check their work (one hour in the morning and one hour in the afternoon) have to have a physical examination or establish a basic hearing line2. 1t is no problem to include the post above 85dB (a) into the scope of hearing protection. Can posts below 85dB (a) be excluded from hearing protection? 1f not, is it greater than? DB (a) position must be included in the scope of hearing protection

3? Or is the noise occupational hazard physical examination conducted once a year for the post with noise level higher than 85dB (a)< There are several kinds of physical examination items for noise occupational hazards. Can we only do pure listening test? Other physical examination items are similar to regular (2-year) physical examination of general employees. Can they be replaced 5? 1f the enterprise does not make this evaluation, what are the risks expert reply Li Xiaokuan (director and researcher of noise and vibration control professional committee of China Occupational Safety and Health Association) this question does not clearly describe the current situation of noise in the plant, only mentions that the noise of some operating posts exceeds 85dB (a), and the amount is not clear. Therefore, some questions cannot be answered specifically the evaluation value dB (a) involved in hearing protection project is the equivalent sound level of 8 hours exposure every working day, which is an average value of energy in a sense. 1t can be measured by integrating sound level meter or sound exposure meter, and can also be calculated by different sound levels corresponding to different time periods. 1nspection personnel should consider the sound exposure in different periods to consider whether they need to be included in the scope of hearing protection the standard of hearing protection for employees in industrial enterprises requires that LAeq, 8 ≥ 85dB enterprises should implement the standard; 85dB is not required the workers who work in LAeq, 8 ≥ 85dB places for the first time should accept the hearing test within 3 months, and the audiogram obtained is called basic audiogram. Exposure to 85dB ≤ LAeq, 8 & lt; Workers in workplaces with noise of 100 dB shall have a follow-up hearing test every two years; For those exposed to LAeq, 8 ≥ 100dB, a follow-up audiometry should be conducted once a year the main physical examination item related to hearing protection is hearing test, using pure tone air conduction method. The test frequency should include at least 500, 1000, 2000, 3000, 4000 and 6000Hz 1 can’t answer the fifth question because 1’m not involved in my work suggestions: if possible, enterprises should formulate hearing protection plans, master noise sources, noise transmission routes and noise characteristics of receiving places, including noise emission, noise exposure and noise exposure measurement, and implement reasonable and feasible sound source control, transmission route control and receiving location protection measures according to the actual situation of enterprises, To effectively control the impact of workplace noise on the health of workers our website solemnly declares that this article is reprinted by network media, only representing the author’s point of view, and has nothing to do with our website. 1f the information column articles and comments violate your legal rights, please call to let us know and we will deal with them in time

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