Self-recording audiometry in industry

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Pelmear, P. L. and Hughes, Brenda J. (1974).British Journal of Industrial Medicine,31, 304-309. Self-recording audiometry in industry. A study of initial and repeat audiograms of 118 drop forge employees using fixed frequency self-recording audiometry showed that the mean of the differences at the test frequencies 0·5, 1, 2, 3, 4, and 6 kHz ranges from -0·47 dB to +0·61 dB. The largest standard deviation was 6 dB at 6 kHz and the lowest 3 dB at 2 kHz.

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