GOST 31704-2011 Sound absorbing materials Sound absorption measurement method in reverberation room《吸音材料 混音室中吸音测量方法》.pdf

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1、 (N ISO 354:2003, MOD) , ()INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION(ISC)317042011(N IS 354:2003), - 1.092 . - 1.22009 . , . , , -, 1 - , 42 465 3 - , - ( 8 2011 . 39) : ( 3166) 00497 ( 3166) 00497 ZAMKZKGMDRUTJUZUA - - 4 - N ISO 354:2003 Acoustics Measurement of sound abso

2、rption in a reverberation room(. ) - , . - 1.52001 ( 3.6). , , . (en). (MOD)5 29 2012 . 1515- 317042011 (N IS 354:2003) 12013 .6 II 317042011 - , - . () - . , , 2014 -, III 3170420111 12 13 14 25 36 .36.1 36.2 .46.3 47 47.1 .47.2 57.3 67.4 88 .88.1.88.2 98.3 109 .11 () 12 () . . . 13 () , .17 17IV 3

3、17042011 , - . 2 317052011, 1716882, 31295.12005. 6.3.1 - 7.3.3, . . , , - . 8.2.2 IS/-13. , .1, , ASTM E 795, . . .V 317042011 Sound absorbing materials. Sound absorption measurement method in reverberation room 201307011 - , , - (, , ) . -, . .2 : 317052011 (N IS 11654:1997) , -. (N IS 11654:1997

4、, . , MOD) 1716882 . ( 61260:1995 . - , NEQ) 31295.12005 (IS 9613-1:1993) . -. 1. (IS 9613-1:1993 . . 1. , MOD) - - , 1 , . (), (-) . , , , , .3 :3.1 : .3.2 : , , - 60 .1 317042011(N IS 354:2003) 1 , 60 , .2 , - , .3.3 : (- ) .3.4 : , .3.5 : , - . ( , ), - (, ) . , (MLS) , , .3.6 : -, , - , , .1 .2

5、1; 2.3.7 : - . .3.8 S: , .1 .2 , ( J), , .3.9 c97S: .1 , , - , .2 c97S, , , (, ). - c97S .3 S , - , - . .4 . T . 8.1.2, (5)(8).2 317042011 (, - ), - S (. 3.8). , - obj n: obj=/n.5 , 1:100 125 160 200 250 315400 500 630 800 1000 12501600 2000 2500 3150 4000 5000 - (. 1). , ( 100 ) ( ) .6 6.1 6.1.1 15

6、0 3. 200 3. 500 3 .6.1.2 , Imax 1,9 V1/3, (1) Imax , (-, ), ;V , 3. , - , 1,0 2,0.6.1.3 () -. , (. ).6.1.4 1, 8.1.2.1 - , , 1. V 200 3, , 1, - (V/200 3)2/3. 1 V = 200 3, 100 125 160 200 250 315 400 500 630 -, 26,5 6,5 6,5 6,5 6,5 6,5 6,5 6,5 6,5, 800 1000 1250 1600 2000 2500 3150 4000 5000 -, 26,5 7,0 7,5 8,0 9,5 10,5 12,0 13,0 14,0

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