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噪音测试标准6 ^% V( n1 J* G! f6 P& C' C+ }
' E& m A# R/ V. r0 _
ISO 3743-1:19942 g6 J! _, w' S
Acoustics - Determination of sound power levels of noise sources - 7 p* v$ X, f, b( I0 h; _; z
Engineering methods for small, movable sources in reverberant fields -
8 M" p4 u3 N* \) g- {Part 1: Comparison method for hard-walled test rooms4 B: S0 w `. ~3 ]( k# r
0 H( C, v% ]+ ~8 y( m; IBS EN ISO 3743-2:1997 (BS ISO 3743-2:1994 + Amd 1)7 A+ ^2 P! M X; `0 v
Acoustics - Determination of sound power levels of noise sources - $ e4 i; m1 n2 G/ x7 [* Q
Engineering methods for small, movable sources in reverberant fields -: u/ {! a" a. e$ i% Z. I
Part 2: Methods for special reverberation test rooms
: C. @* J& P& V1 \7 C/ {5 A- H! b5 o2 o/ N" ^/ \# n
BS EN ISO 3743-1:1995 Incorporating Amendment No. 1
+ V$ M" D+ ~) S- u5 @9 @) R8 _9 _+ [Acoustics — Determination of sound power levels of noise sources —# s) D4 o, r4 U1 c
Engineering methods for small, movable sources in reverberant fields —
; S$ K# D4 w& `% z- R; }Part 1: Comparison for hard-walled test rooms5 i3 @. _. {- a" [: P2 o P2 c
+ b5 F0 @) ?8 v0 K" W- b; L6 [. w
http://www.angui.org/bbs/read.php?tid-12541-keyword-3743.html |
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