Standard No.:	GB/T 1988 4-2005
English Name:	Acoustics
Chinese Name:	声学 各种户外声屏障插入损失的现场测定
Chinese Classification:	Z32    Noise and vibration test methods
Professional Classification:	GB    National Standard
ICS Classification:	17.140.01 17.140.01    Acoustic measurements and noise abatement in general 17.140.01
Issued by:	AQSIQ
Issued on:	2005-9-9
Implemented on:	2006-4-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	150.00
Delivery:	via email in 1~3 business day

本标准规定了用于屏蔽各种噪声源的户外声屏障插入损失的测量方法。它详细说明了户外声屏障插入损失现场测量的过程，包括传声器位置、声源条件及测量地点的声环境。本标准供人们用来测量给定地点和气象条件下声屏障的插入损失。它不能比较安装在不同地点同样一个声屏障的插入损失值。但它可通过直接法来比较一定气象条件下同一地点不同类型的声屏障之插入损失值。