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2、 13 14 .25 36 36.1 .36.2 , , .36.3 46.4 .47 .58 5 () .6 () 8 () .9III 321122013 Acoustics. Determination of noise performance for air-terminal devices. Precision methods for anechoic rooms 201409011 -, , , - , 22270, - 31252.2 : 12.3.01879 . . 2227076 , . - 312522004 ( 3740:2000) . 312732003 ( 3745:
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5、 , - 2,0 ( 63 ) 1 ( 800 5000 ). 31273( 4).2 3211220135 , , , , , , 6 , 10 - . , 6 , 1 . - , . 31273. , , .6 6.1 6.1.1 , , , , .6.1.2 , .6.1.3 10 . .1 (- ). .1 ( ) - . 31273 20 10 , , . , , , - . - .2 ( ). 360.6.1.4 , 0,3 /c, 25 . - 1,5 /c. - .6.1.5 - 12.3.018.6.1.6 (, , . .), - .6.2 , , 6.2.1 , - . , .6.2.2 , - .3 3211220136.2.3 ,6.2.16.2.2.- .6.3 6.3.1 .6.3.1.1 - , - , .6.3.1.2 - , -, , .6.3.1.3 -
