1、 2 ISO 10140-2:2010Acoustics Laboratory measurement of sound insulation ofbuilding elements Part 2:Measurement of airborne sound insulation(IDT) 10140-22012 1 - ( ) - , 42 358 3 29 2012 . 1383-4 10140-2:2010 . - . 2. - (ISO 10140-2:2010 Acoustics Laboratory measurement of sound insulation of buildin
2、gelements Part 2: Measurement of airborne sound insulation). - , 5 1.02012 ( 8). ( 1 ) , . () - . , - (gost.ru) , 2013 , - - II 10140-220121 12 13 24 .35 .36 .47 68 .79 7 () 9 () 11 () .13 10140-22012III 2 Acoustics. Laboratory measurement of sound insulation of building elements. Part 2. Measuremen
3、t ofairborne sound insulation 201312011 , , , , , , , -, , , - ( ), , -, , , . - , , - . , - . , - , , , - .2 . - , . 140-2 . . 2., (ISO 140-2, Acoustics Measurement ofsound insulation in buildings and of building elements Part 2: Determination, verification and application ofprecision data) 717-1 .
4、 . 1. (ISO 717-1, Acoustics Rating of sound insulation in buildings and ofbuilding elements Part 1: Airborne sound insulation) 10140-1 . . 1. - (ISO 10140-1, Acoustics Laboratorymeasurement of sound insulation of building elements Part 1: Application rules for specific products) 10140-4 . . 4. - (IS
5、O 10140-4, Acoustics Laboratory measurement of sound insulation ofbuilding elements Part 4: Measurement procedures and requirements)1 10140-22012 10140-5 . . 5. - (ISO 10140-5, Acoustics Laboratorymeasurement of sound insulation of building elements Part 5: Requirements for test facilities andequipm
6、ent)3 :3.1 (sound reduction index) R, : , - W1, , W2, , R = 10lgWW12c230c232c231c231c246c248c247c247. (1) 1 , , - R = L1 L2+ 10lgSAc230c232c231c246c248c247, (2) L1 * , ;L2 , ;S , , 2;A , 2. 2 (2) , . 3 (TL), . 4 (-), , RI , , Rs , c68R .3.2 (apparent sound reduction index) c162R , : , - W1, , , W2,
7、 W3, - , c162R = 10lgWWW123c43c230c232c231c231c246c248c247c247.(3) , , . , - c162R = L1 L2+ 10lgSAc230c232c231c246c248c247. (4) , , (2), , - , , , - .* 10140 - (energy average sound pressure level in a room), 10140-4 ( 3.1).2 10140-220123.3 (element-normalized level difference) Dn, e, : - , - Dn, e
8、 L1 L2+ 10lgAA0c230c232c231c246c248c247, (5) L1 , ;L2 , ;A0 , 2( A0=102);A , 2. / , (5) Dn, e= L1 L2+ 10lgnAA0c230c232c231c246c248c247, (6) Dn, e ;n .3.4 (small technical element): , , 1 2, - .4 10140-5. 10140-5. 10140-5.5 5.1 - , , -. , (. 6). , . - 100 5000 ( 50 ). . , 3, , , . 10140-4. -*. ( ),
9、 , .5.2 , - 10140-5.* , .3 10140-22012 - . - . , - (. 6.1). -. - , 10140-4.5.3 ( 3) - ( ) - , 10140-4. , - 1/3- :Roct= 10lg1310131013c45c61c229c230c232c231c231c246c248c247c247Rnoct n,/, (7)Dn, l, oct= 10lg1310131013c45c61c229c230c232c231c231c246c248c247c247Dnne octn, ,/.(8) 0,1 . * 1/3- 717-1.5.4 R Dn, e, , 1/3- 0,1 , . - :a) 5 1/3- ;b) 20 10 . . , , .6 6.1 , , .
