ISO 1996-1:2016 声学 环境噪音的等级和测量 第1部分：基本量值和步骤

标准编号：ISO 1996-1:2016

中文名称：声学 环境噪音的等级和测量 第1部分：基本量值和步骤

英文名称：Acoustics — Description, measurement and assessment of environmental noise — Part 1: Basic quantities and assessment procedures

发布日期：2016-03

标准范围

This part of ISO 1996 defines the basic quantities to be used for the description of noise in communityenvironments and describes basic assessment procedures. It also specifies methods to assessenvironmental noise and gives guidance on predicting the potential annoyance response of a communityto long-term exposure from various types of environmental noises. The sound sources can be separateor in various combinations. Application of the method to predict annoyance response is limited to areaswhere people reside and to related long-term land uses.Community response to noise can vary differently among sound sources that are observed to havethe same acoustic levels. This part of ISO 1996 describes adjustments for sounds that have differentcharacteristics. The term “rating level” is used to describe physical sound predictions or measurementsto which one or more adjustments have been added. On the basis of these rating levels, the long-termcommunity response can be estimated.The sounds are assessed either singly or in combination, allowing for consideration, when deemednecessary by responsible authorities, of the special characteristics of their impulsiveness, tonality,and low-frequency content, and for the different characteristics of road-traffic noise, other forms oftransportation noise (such as aircraft noise), and industrial noise.This part of ISO 1996 does not specify limits for environmental noise.NOTE 1 In acoustics, several different physical measures describing sound can have their level expressed indecibels (e.g. sound pressure, maximum sound pressure, and equivalent continuous sound pressure). The levelscorresponding to these physical measures normally will differ for the same sound. This often leads to confusion.Therefore, it is necessary to specify the underlying physical quantity (e.g. sound pressure level, maximum soundpressure level, and equivalent continuous sound pressure level).NOTE 2 In this part of ISO 1996, quantities are expressed as levels in decibels. However, some countriesvalidly express the underlying physical quantity, such as maximum sound pressure, in pascal or sound exposurein pascal-squared seconds.NOTE 3 ISO 1996-2 deals with the determination of sound pressure levels.

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