GB/T 19885-2005 声学 隔声间的隔声性能测定 实验室和现场测量

ICS17.140.01

Z32场昌

中华人民共和国国家标准

GB/T19885-2005八SO11957:1996

声学隔声间的隔声性能测定

实验室和现场测量

Acoustics-Determinationofsoundinsulationperformanceofcabins-

Laboratoryandin-situmeasurements

(ISO11957:1996,IDT)

2005-09-09发布2006-04-01实施

中华人民共和国国家质量监督检验检疫总局

中国国家标准化管理委员会发布

GB/T19885-2005/1S011957:1996

目次

前言··············································································，···································……1

1范围·····················，········································································，···············……1

2规范性引用文件······································································.·.·······.··...……1

3术语和定义.·:1

4测试环境和表征量的选择··············，······，··································……，……3

5测量仪器··················································，······················································……3

6实验室中隔声性能的测量·····························，····································……，3

7现场隔声性能的测量·····················，·········································......·..·……5

8计权声压隔声值····················································································……7

9特定的噪声频谱下隔声间的隔声估算值································································……7

10不确定度········································································································……7

n记录资料·········································································································……7

12报告资料········································································································……8

附录A(资料性附录)特定的噪声频谱隔声间的估算隔声值··········································……10

参考文献··，········································································································……11

GB/T19885-2005/ISO11957:1996

月U舌

本标准等同采用ISO11957:1996((隔声间的隔声性能测定实验室和现场测量》。

本标准在等同采用国际标准ISO11957:1996时，在规范性引用文件和参考文献中一些ISO标准以

我国已制订并实施了的相应国家标准所代替。

本标准由中国科学院提出。

本标准由全国声学标准化技术委员会((SAC/TC17)归口。

本标准起草单位:中机国际工程设计研究院、同济大学、沈阳大学、营口盼盼新型环保器材有限

公司

本标准主要起草人:王道禄、梁锋、毛东兴、盛胜我、冯治宇、武道忠

GB/T19885-2005/ISO11957:1996

声学隔声间的隔声性能测定

实验室和现场测量

范围

本标准规定了声防护用的隔声间隔声性能测定的实验室方法(第6章)和现场方法(第7章)。隔声

性能是以用隔声间后得到的声压级或声功率级降低值来表示。本方法适用于小泄漏比(城20o)的隔

声间。

本标准仅适用于整体的隔声间，而不适用于构成隔声间的单个部件

注:隔声间部件(诸如板壁元件、门、窗、消声器等)的隔声值应按其他有关标准测量

2规范性引用文件

下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有

的修改单(不包括勘误的内容)或修订版均不适用干本标准，然而，鼓励根据本标准达成协议的各方研究

是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。

GB/T3241-1998倍频程和分数倍频程滤波器(eqvIEC61260:1995)

GB/T3785-1983声级计的电、声性能及测试方法

GB/T6881.1-2002声学声压法测定噪声源声功率级混响室精密法(idtISO3741;1999)

GB/T14574-2000声学机器和设备噪声发射值的标示和验证(eqvISO4871:1996)

GB/T15173-1994声校准器(eqvIEC60942:1988)

GB/T17181-1997积分平均声级计(idtIEC60804:1985)

ISO717-1:1996声学建筑物和建筑构件的隔声评价第1部分:空气声隔离

3术语和定义

下列术语和定义适用于本标准

A计权声压级L,L,,A-weightingsoundpressurelevel

用A计权网络测得的声压级

23

隔声a(]cabin

一种专门设计用于保护人免受环境噪声干扰的围护结构。

-33

声压级L,soundpressurelevel

声压与基准声压之比的以10为底的对数乘以2，单位为贝尔〔],B。但通常用dB为单位。基准声

压为20VPa.

3.4

平均声压级L,averagesoundpressurelevel

声压的平方平均值与基准声压(20t&a)的平方之比的以10为底的对数。单位为贝[尔〕(B)。但通

常用dB为单位。

下，八，1100.11.,,+101.,E>_+…+10,"}、，

L-户=1V1g又—)UD

GB/T19885-2005/ISO们957:1996

式中:

L,L,i,...La各次测得的声压级，dB;

测量次数。

3.5

声压隔声值D,soundpressureinsulation

外部混响声场的声压级和放在该声场中隔声间内部的声压级之差值(1/3倍频程或倍频程)，用dB

表示。

3.6

表观声压隔声值D,'apparentsoundpressureinsulation

在某个房间内的声压级和放在该房间内的隔声间内部声压级之差值(1/3倍频程或倍频程)，用dB

表示。该房间内的声场不一定是扩散声场。

注:“表观”这个词就意味着测量是在现场进行的。

3.7

表观A计权声压隔声值D,,'apparentA-weightedsoundpressureinsulation

当采用实际的环境噪声作声源时，相应地在房间内和在隔声间内部测得的A计权声压级之差值，

用dB表示。

3.8

计权声压隔声值D,,weightedsoundpressureinsulation

根据ISO717-1:1996中规定的方法确定的单一值，用dB表示。只是ISO717-1:1996中的隔声量

R用声压隔声值D,来代替。(见第8章)

3.9

表观计权声压隔声值D,,,'apparentweightedsoundpressureinsulation

根据ISO717-1:1996中规定的方法确定的单一值，用dB表示。只是I