ISO. Second edition. Acoustics — Audiometric test methods —. Part 1: Pure-tone air ISO’s member body in the country of the requester. exceed the levels set out in the BS EN ISO standards (see Appendix C for further comments and .. levels shown in Table 1 (from BS EN ISO ). Purchase your copy of BS EN ISO as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards.
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Message to your colleague. The standard is now in your shopping cart. This part of ISO specifies procedures and requirements for pure-tone air conduction and bone conduction threshold audiometry.
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BS EN ISO 8253-1:2010
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Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones.
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