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Title: Soft-Pedaling Distribution Operations Noise
Author: Wayne C. Gracey
Source: American Gas Association 1973
Year Published: 1973
Abstract: On April 28, 1971, the Federal Occupational Safety and Health Act became the law of the land. What does this mean to us as gas men? Just one heck of a lot! Among the many standards that one must comply with-or else-is one on noise. This noise standard states that eight hours is the maximum lime that a worker may be exposed to noise levels of 90dBA or more. If it reaches 115dBA the time falls off 1/4 or less. Before going any farther, lets make a couple of observations about sound measurement: 1. Sound pressure level is measured in dB (decibels). Of the three scales used, the A scale is recognized as being closest to simulating the human ear. Consequently. the readings used are the dBA readings. 2. Decibels are logarithmic, that is, 10 decibels are 10 times the power of 1: 20 are 1(X) times the power of 1 and 30 are 1000 times the power of 1. 3. A relatively small decrease in decibel readings on the A scale can reduce the strength of the sound considerably i.e. a sound of 83 decibels has twice the strength of a sound of 80 decibels. This is line, but what bearing does this have on distribution operations noise?

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