GOST R ISO 389-8-2011 State system for ensuring the uniformity of measurements Acoustics Reference zero for the calibration of audiometric equipment Part 8 Reference equivalent thrr ci.pdf
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1、 389-82011 8 ISO 389-8:2004Acoustics Reference zero for the calibration of audiometric equipment Part 8: Reference equivalent threshold sound pressure levels for pure tonesand circumaural earphones(IDT) 27 2002 . 184- , 1.02004 . 1 - ( ) , 42 358 3 - 1 2011 . 671-4 389-8:2004 . - . 8. (ISO 389-8:200
2、4Acoustics Reference zero for the calibration of audiometric equipment Part 8: Reference equivalentthreshold sound pressure levels for pure tones and circumaural earphones). - 1.5 ( 3.5). - - , 5 , - . () . - , , 2012 , - - II 389-82011 125 16000 . () 125 8000 . 389-5 8000 16000 . , . , SENNHEISERHD
3、A 200. , - , .III 389-82011 8 State system for ensuring the uniformity of measurements. Acoustics. Reference zero for the calibration of audiometricequipment. Part 8. Reference equivalent threshold sound pressure levels of pure tones for circumaural earphones 201212011 - () 125 8000 , , , SENNHEISER
4、 HDA 200. - . . .2 . - , . 389-1 . . 1. - (ISO 389-1, Acoustics Reference zero for the calibration of audiometric equipment Part 1: Referenceequivalent threshold sound pressure levels for pure tones and supra-aural earphones) 4869-1 . . 1. (ISO 4869-1, Acoustics Hearing protectors Part 1: Subjective
5、 method for themeasurement of sound attenuation) 60318-1 . . 1. (IEC 60318-1, Electroacoustics Simulators of human head andear Part 1: Ear simulator for the calibration of supra-aural earphones) 60318-2:1998 . . 2. - (IEC 60318-1:2009, Electroacoustics Simulators of human head and ear Part 2: An int
6、erim acousticcoupler for the calibration of audiometric earphones in the extended high-frequency range) 60645-2 . 2. (IEC 60645-2,Audiometers Part 2: Equipment for speech audiometry)1 389-82011 3 389-1, 4869-1, 60318-1 60645-2.4 , , . SENNHEISER HDA 200 , - 60318-1 60318-2 ( 1) , 1. HDA 200 , (. ).
7、,1. . -, , 21 25 . 1 , , b SENNHEISER HDA 200, , b SENNHEISER HDA 200125160a200a30,526,022,015001600a20005,55,54,5250315a400a18,015,513,52500a30003150a3,02,54,0500630a75011,08,06,04000500060009,514,017,0800a10001250a6,05,56,06300a8000c17,517,5 .b 0,5 . / 389-5. HDA 200 (10,0 c177 1,0) . 145 , , , 13
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