000 | 00495nam a22001337a 4500 | ||
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999 |
_c2976 _d2976 |
||
003 | OSt | ||
005 | 20181019143725.0 | ||
008 | 181019b ||||| |||| 00| 0 eng d | ||
040 | _cNational Acoustics Laboratories | ||
110 | _aInternational ElectroTechnical Commission | ||
245 | _aCEi IEC 60318-3. Electroacoustics - Simulators of human head and ear. Part 3: Acoustics coupler for the calibration of supra -aural earphones used in audiometry | ||
260 |
_aGeneva _bISO _c1998 |
||
942 |
_2udc _cBOOK |