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Self-recording audiometry in industry
  1. P. L. Pelmear,
  2. Brenda J. Hughes
  1. GKN Forgings Ltd., Bromsgrove and GKN Group Technological Centre, Wolverhampton

    Abstract

    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.

    The results also confirmed that temporary threshold shift effects may be minimized if audiograms are obtained at the beginning of a shift or within two hours provided the subject is protected with ear muff defenders up to the time of the test.

    The practical advantages to industry of using self-recording audiometry for audiometric screening and the reliability of single audiograms for threshold determination are discussed.

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