Ambient noise levels in industrial audiometric test rooms

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      <subfield code="a">The present study reports octave band (125 to 8000 Hz) ambient noise sound pressure levels measured in 490 single-walled prefabricated audiometric test rooms located in industrial setting that were highest in the lower frequencies and decreased as frequency increased</subfield>
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      <subfield code="a">American Industrial Hygiene Association journal</subfield>
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      <subfield code="t">American Industrial Hygiene Association journal</subfield>
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      <subfield code="g">Vol. 55, nº 5, May 1994 ; p. 433-437</subfield>
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