1、 10848-22012 2 ISO 10848-2:2006Acoustics Laboratory measurement of the flanking transmission of airborne andimpact sound between adjoining rooms Part 2: Application to light elementswhen the junction has a small influence(IDT) 27 2002 . 184- , 1.02004 . 1 - ( ) - , 42 358 3 - 29 2012 . 1384-4 10848-
2、2:2006 . -. 2. (ISO 10848-2:2006Acoustics Laboratory measurement of the flanking transmission of airborne and impact sound betweenadjoining rooms Part 2: Application to light elements when the junction has a small influence). - , 5 , - . () . - , , 2013 , - - II 10848-220121 .12 13 24 .25 .36 77 .78
3、 .79 .7 () Dn,f,I .9 () .1011III 10848-22012 2 Acoustics. Laboratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms.Part 2. Application to light elements when the junction has a small influence 201312011 10848 ( 13) - . - , , , , 2 3. , , , (, ) . - , (
4、), . , . Dn,f Ln,f . 10848-1 ( 3.10).2 . - , . 140-2 . . 2., (ISO 140-2,Acoustics Measurement of sound insulation in buildings and of building elements Part 2: Determination,verification and application of precision data) 140-3:1995* . . 3. (ISO140-3:1995,Acoustics Measurementofsoundinsulationinbuil
5、dingsandofbuildingelements Part3:Laboratory measurements of airborne sound insulation of building elements) 140-6:1998* . . 6. (ISO 140-6:1998,Acoustics Measurement of sound insulation in buildings and of building elements Part 6: Laboratorymeasurements of impact sound insulation of floors)* 140 ( 3
6、, 6) 10140. , - .1 10848-22012 354 . (ISO 354,Acoustics Measurement of sound absorption in a reverberation room) 717-1 . . 1. (ISO 717-1, Acoustics Rating of sound insulation in buildings and ofbuilding elements Part 1: Airborne sound insulation) 717-2 . . 2. (ISO 717-2, Acoustics Rating of sound in
7、sulation in buildings and of buildingelements Part 2: Impact sound insulation) 10848-1:2006 . - . 1. (ISO 10848-1:2006,Acoustics Laboratory measurement of the flanking transmission of airborne and impact sound betweenadjoining rooms Part 1: Frame document)3 :3.1 (normalized flankinglevel difference)
8、 Dn,f,: , , .Dn,f A Dn,f= L1 L2 10lg0,(1) L1 , ;L2 , ;A , 2;A0 , 2; A0=102. 10848-1:2006, 3.23.2 (normalized flankingimpact sound pressure level) Ln,f,: , , - , - . Ln,f A- Ln,f= L2+ 10lg0,(2) L2 , ;A , 2;A0 , 2; A0=102. 10848-1:2006, 3.33.3 (plenum space): - *.4 10848-1 ( 5).* , -, , / .2 10848-220
9、125 5.1 5.1.1 -, 10848-1 ( 6). - . 14.5.1.2 , . -. , , - (. 1).3 10848-220121 ; 2 ;3 ( 0,3 ); 4 - ; 5 ; 6 ; a 50 3 1 . - .5.1.3 (4,5 c177 0,5) , - 2,3 . 50 3. - , - 10 %. 3,5 .5.1.4 . , -. . 200 200 (., , 1). - 45. , Dn,f,max10 Dn,f .4 10848-220121 ; 2 ; 3 ; a 50 3 2 -. Dn,f,max - , .5.1.5 () 0,3 . -, . 0,7 0,8 . - , .5.1.6 , . 5 10848-220121 ; 2 3 . ( )1 ; 2 4 . ( ) 354 - 1. 1 - , 125 250 500 1 000 2 000 4 000 -, c97s0,65 0,80 0,80 0,80 0,80 0,80 1- 0,10. 150 . - -, . 500 3/.5.2 5.2.1 . , -. . . 1.5.2.2 - .
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