GOST 31298 1-2005 Noise of machines Determination of sound insulation performances of enclosures Part 1 Measurements under laboratory conditions for declaration of noise performans.pdf

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1、 1 ISO 11546-1:1995Acoustics Determination of sound insulationperformances of enclosures Part 1: Measurements under laboratoryconditions (for declaration purposes)(MOD) , ()INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION(ISC)31298.12005( 11546-1:1995)62005/83, - 1.092 . - 1.297 .

2、 , . , , -, 1 - - , 42 3 , (- 28 9 2005 .) : ( 3166) 00497 ( 3166) 00497 AZAMBYKZKGMDRUTMUZUA - - 4 - 11546-1:1995 . . 1. - ( ) (ISO 11546-1:1995 Acoustics Determination of soundinsulation performances of enclosures Part 1: Measurements under laboratory conditions (for declarationpurposes). , - , .

3、- - D5 2362879 II 31298.120056 7 2006 . 183- 31298.12005 ( 11546-1: 1995) 1 2007 . ( ) - ., . , 2006 -, III 31298.120051 .12 13 24 35 .56 57 78 .99 .910 .10 A () .11 B () 12 C () .13 D () - 11546-1:1995.13 () , 1415IV 31298.12005 1 Noise of machines. Determination of sound insulation performances of

4、 enclosures.Part 1. Measurements under laboratory conditions for declaration of noise performans values1 , . , . 31298.2, - 23426. , , , - 1. - . , (, ). , (. 3.11 7.2) . 2 3.-23, 1 . - , . , 2 3. - , .2 : 1716882 . - 1718781 . 2342679 . 3045797 ( 9614-193) . - . . 1 31298.12005( 11546-1:1995) 20070

5、101306832000(1120495).-.306912001(487196).-311722003(11201:1995).-.- 312742004 ( 3741:1999) . . 312752002 ( 3744:1994)1) . .312762002(3743-1:1994,3743-2:1994)1).-.- 31298.2 2005 ( 11546-2:1995) . . 2. - , 1 ,.- (), ().,.3 .3.1 A(A-weighting):-171871.3.2 (enclosure): , () (). ,(.4).3.3 (sound pressur

6、e level), Lp, : , . 20(2c215105).3.4 (averagesoundpressurelevel),L,:-,Lnppp pnLL Lc61c43c43c43c230c232c231c231c246c248c247c2471010 10 1001 01 0112lg., , Lp1, Lp2, , Lpn , , n .3.5 (sound power level), LW, : , . 1(1012).1) 5140199( 374494) 5140099( 3743-194, 3743-294).2 31298.120053.6 (average sound

7、power level), LW, : -,LLL LnWW WnWc61c230c232c231c231c246c248c247c247c43c43c431010011001100112lg ,.,LW1,LW2,LWn , , n .3.7 (sound power insulation), DW, : ,.3.8 (A-weighted sound powerinsulation), DWA, : , .3.9 (soundpressureinsulation),Dp, :- , .3.10 (A-weightedsoundpressureinsulation),DpA, :.3.11

8、soundpressureinsulation(reciprocitymethod),Dpr, :,- ,-.3.12 (estimated noise insulation due to the enclosure), DWA,e, DpA,eDprA,e,:-, DW, Dp Dpr, (.).3.13 weighted sound pressure insulation (reciprocity method), Dpr,w, : , 2, R -Dpr.3.14 (weighted sound power insu-lation),DW,w, :,2,-RDW.3.15 (fill ratio), c106: . , 31275.3.16 (leak ratio), c113: (, .) , -.1 .2 , , (sealratio)c121 (c121 =1c113).4 - , . , , . -,. , . ,-. , 3 31298.12005 (- c113 0,02). 23. - , . , - , . , -Dpr,wDW,w(.3.13