Document ZBmRa77LJ1D6eQ7epwoG23ZdL

NOISE SAFETY SEMINAR 1. Introduction 3 min. Look at noise so as to understand; - impact on you - noise standards and allowed exposure - things to do to reduce impact of noise on you and to attenuate noise sources. 2. Show film(*) 15 min. - answer questions 3. Show Dow and OSHA Standards 4 min. - use OH transparency - also calculate one or two exposure examples 4. Age and Hearing Loss - use handout 3 min. 5. What can be done 5 min. a. Comment on plant noise and noise exposure - decibel readings of selected areas and 1 of equipment - typical dosimeter readings - examples of noise exposure away from work added to work exposure (i.e. guns - hunting - boating - lawn mower, etc.) b. Hearing Protection Used for plant and example of protection achieved - also include ear plugs from Medical. 5 min. DO 082146 CONFIDENTIAL 4 Noise attenuation of equipment - easy to do things - demonstrate - dampening - vibration isolation - barrier - shield - absorption - enclosure 6. Summary and Questions 5 min. TOTAL 50 min. 10 min * Film - "Protect Your Hearing" can be obtained from Industrial Hygiene group. Two other films of possible interest are available from Anne Davis, Safety Department. These include: (1) Hear: It Takes Two - Numerous examples are relayed on gradual hearing loss that results from overexposure and the importance of hearing protection. (2) Hearing Loss: Cause and Prevention - shows what happens in the inner ear when hearing loss develops and the value of hearing protection. DO 0821A7 CONFIDENTIAL NOISE SOURCE STEAM LEAKS dBA 2 FEET FROM SOURCE 98 - 110 STEAM TRAPS 86 - 118 PUMP 86 - 95 VACUUM JET FAN 95 92 - 104 FAN BELT SQUEAL 98 - 104 CONTROL VALVE REFLUX LINE 93 - 99 96 - 98 ACTION STEPS REPAIR ASAP TO ELIMINATE. OFTEN COVERING THE LEAK WILL GREATLY REDUCE THE NOISE -- A BOX OR A CLOTH WILL DO. REPLACE TRAP. BLEED DISCHARGE TO CONDENSATE RETURN LINE OR EMPTY INTO WATER. CHECK MECHANICAL CONDITION. IN CREASE SUCTION PRESSURE. ENCLOSE. LAGGING. ENCLOSE. CHECK BALANCE. DECREASE RPM. INCREASE NUMBER OF BLADES. CHECK FOR WORN SHEAVE, ALIGNMENT, CHECK TENSION, USE COGBELT, CHECK DESIGN. LOWER VELOCITY. CHANGE TO QUIET VALVE. ENCLOSE. LOWER VELOCITY. AVOID CHANGES IN LINE SIZE AND DIRECTION. LAGGING. )^otcctiow /Irrtw o^rtnhi CiM^fccre. A J S n't $ ^uowAtte EuPcsu^cs sr ?-r Ko )) o B tfifS. d 1 2. I 3a / :>/jut; 1C .*.:> nyc : . // ) ;j.t - - r* r n -/; LL>/y AR''-* 0-z At rl/GrteT ^e-uerc (.110 djt*) 7 79 86 73 7+ (A S VJH/'tJG- I OOP DO OB2149 confidential