1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS B ISO/TS 4869 5 5: KS B ISO/TS 4869 5: 2007(2012 ) 2007 11 23 http:/www.kats.go.krKS B ISO/TS 4869 5: 2007 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : :2007 11 23 :2012 12 29 2012-0837 : : ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS B ISO/TS 4869
2、5: 2007 i ii iii 1 1 2 1 3 .2 4 3 4.1 3 4.2 4 4.3 5 5 .6 5.1 6 5.2 7 5.3 8 5.4 8 5.5 8 5.6 .8 6 .8 6.1 .8 6.2 8 6.3 .9 6.4 .9 6.5 9 7 .9 7.1 .9 7.2 9 7.3 .10 7.4 11 8 .12 8.1 .12 8.2 .12 8.3 .12 8.4 13 9 .13 A( ) .15 18 KS B ISO/TS 4869 5: 2007 ii ISO( ) . ISO . . , ISO . ISO . 2 ISO/IEC . . . 75 %
3、. , , . ISO (ISO/PAS) ISO , 50 % , . ISO (ISO/TS) , 2/3 , . ISO/PASS ISO/TS 3 , , 3 . ISO/PAS ISO/TS , 3 , . . ISO . ISO/TS 4869 5 ISO/TC 43 , SC 1, . ISO/TS 4869 , , . 1 : 2 : A- 31): 4 : 5 : . 6: 2)ISO 4869 5 A . 1) 2) .KS B ISO/TS 4869 5: 2007 iii 2006 1 ISO/TS 4869 5, Acoustics Hearing protector
4、s Part 5: Method for estimation of noise reduction using fitting by inexperienced test subjects , . . (ear-muffs) (ear-plugs) , . ( .) . ISO 4869 1 . . ( , , , , ) . KS B ISO/TS 4869 5: 2007 (2012 ) 5: Acoustics Hearing protectors Part 5: Method for estimation of noise reduction using fitting by ine
5、xperienced test subjects 1 . . . . . . 1 KS A ISO 4869 1 . KS A ISO 4869 1 . . ( , , , , ) . ( ) , . . 2 500 Hz , . . 2 . . ( ) . KS C IEC 60645 1, 1: KS C IEC 61672 1, ( ) 1: IEC 60263, Scales and sizes for plotting frequency characteristics and polar diagrams KS B ISO/TS 4869 5: 2007 2 IEC 61260:
6、1995, Electroacoustics Octave-band and fractional-octave-band filters Guide to the expression of uncertainty in measurement (GUM), BIPM/IEC/IFCC/ISO/IUPAC/IUPAP/OIML, ISBN 92 67 10188 9, 19933)3 , . 3.1 . 3.2 ear-cup ear-cup ear-cup , . 3.3 . (canal caps) , (semi-aural inserts), (banded ear-plugs) .
7、 3.4 3.5 , , KS A ISO 389 1 . 3.6 KS A ISO 6189 KS A ISO 8253 1 . 3) 1995 KS B ISO/TS 4869 5: 2007 3 3.7 , , . , KS A ISO 8253 2 . 3.8 3.9 3.10 , , (decibels) . 3.11 , 3.12 (sound power spectral density) 3.13 . . (sound field) . 3.14 , 60 dB ISO 354 . 4 4.1 IEC 61260 (centre frequencies) 1/3 KS B IS
8、O/TS 4869 5: 2007 4 . , . 125 Hz, 250 Hz, 500 Hz, 1 000 Hz, 2 000 Hz, 4 000 Hz, 8 000 Hz 4.2 4.2.1 a) , , , 15 cm 2.5 dB . , 3 dB . . b) 500 Hz , front-to-random 5 dB , 5 dB . , front-to-random 1 . 1 front-to-random dB dB 5 4.5 4 4 5 4.5 4 1 , , . 2 . . 4.2.2 ( ) 1.6 . 4.2.3 2 . . . KS B ISO/TS 4869
9、 5: 2007 5 2 (centre frequency) Hz 1/3 (20 Pa ) dB 50 63 80 38 32 27 100 125 160 22 17 14 200 250 315 12 10 8 400 500 630 6 5 5 800 1 000 1 250 4 4 4 1 600 2 000 2 500 5 5 3 3 150 4 000 5 000 1 1 1 6 300 8 000 10 000 6 12 14 2 , 0 dB . 0 dB , . 2 KS A ISO 8253 2 . 4.3 . 4.1 , 110 Hz( , 125 Hz 1/3 )
10、9 000 Hz( , 8 000 Hz 1/3 ) . 3 , . KS B ISO/TS 4869 5: 2007 6 3 Hz (20 Pa ) dB 125 250 500 1 000 2 000 10 70 0 70 5 80 10 80 15 90 3 , (crackle and rattle) . 16 kHz 1 63 Hz 1 , 1/3 40 dB . IEC 61260 . (KS C IEC 61672 1 Leq) KS C IEC 61672 1 (F) . 3 . 2.5 dB . , 2 dB , 80 dB 1 dB . , . , ( ) . , . KS
11、 C IEC 60645 1 . 5 5.1 5.1.1 . . 5.1.2 18 . , (50/5010) % . KS B ISO/TS 4869 5: 2007 7 5.1.3 . . a) ? b) 2 , , , ? c) 2 , ? d) 2 , ? ? a), b) c) “ ” , d) 10 2 , . 5.1.4 , , . , , . 5.1.5 KS C IEC 60645 1 1 2 , 25 dB . 5.1.6 KS C IEC 60645 1 1 2 , 0 dB . 0 dB , 2 . 5.1.7 . 5.1.8 . 4.1 3 . 6 dB . 5.2
12、, 16 KS B ISO/TS 4869 5: 2007 8 . , , 20 . 5.3 , , . 5.4 , . 5.5 5.1.3 2 30 . 30 , 12 , 6 . 1 , . , 7.2 . 5.6 , 5.1 . a) , 4)b) 6 6.1 2 . . , , . 6.2 . 4) , . , .KS B ISO/TS 4869 5: 2007 9 , (5.1.3 ). 6.3 . . 6.4 , . , . 6.5 . . 7 7.1 . . . 4 . 4 1 , , 2 , , . , . , . 7.2 . KS B ISO/TS 4869 5: 2007 10 . , . . “ , . , .” 7.3 . , . ( ) . . , , . . , . . a) “ . , . .” b) “ . . . , . .”