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AS 1055.1-1997 Acoustics - Description and measurement of enviro

Acoustics - Description and measurement of environmental noise - General procedures 21 pages

This Standard was prepared by the Joint Standards Australia /Standards New Zealand
Committee AV/5 on Acoustics, Community Noise, to supersede AS 1055.1?1989,
Acoustics?Description and measurement of environmental noise, Part 1: General
procedures . This Standard is based on I.S.O. 1996-1:1982, Acoustic?Description and
measurement of environmental noise?Part 1: Basic quantities and procedures. This
Standard is a result of a consensus among representatives on the Joint Committee to
produce it as an Australian Standard. New Zealand has proceeded with a separate review
of its environmental noise Standard NZS 6802:1991.
It is Part 1 in a series of Standards on the measurement and assessment of environmental
noise. The objective of this Part is to serve as a general guide for the evaluation of
environmental noise in order to meet the needs of public bodies and persons interested in
its control. It applies primarily to noise emitted from industrial, commercial and
residential premises, and is intended for use in the evaluation of existing problems, as
well as for planning purposes. It may be used for noises which include impulsive
components, but it is not suitable for noise which consists solely of discrete impulses, e.g.
shooting, blasting.
The objective of this revision is to reflect the rapid technological advances in acoustical
measurement techniques. Although a sound level meter set on A-weighting and ?F?
response may be used to make a quick assessment of a possible community noise
problem, more sophisticated instrumentation is now readily available and should be used
for the purposes of the AS 1055 series. A choice may be made between the time average
A-weighted sound pressure level or other descriptor(s) such as the percent exceedance Aweighted
sound pressure level as the basic quantity, or other quantities as specified by the
relevant regulatory authority.
This Standard is not a regulatory document and users should ascertain, from the relevant
regulatory authority, details of specific requirements laid down in each State or Territory.
Extensive research concerning the way in which human beings are affected by noise from
a single kind of source such as rail or road vehicles, aircraft or industrial plants, has led
to a variety of descriptors for assessment of different kinds of noise, many of which are in
common use. Conversion from one descriptor to another is often beset with significant
If an acoustical environment were always dominated by a single kind of noise, the
confusion caused by the existence of different descriptors would not be so serious. But
often environmental noise is a composite of sounds from many sources, and the
distribution of the different kinds of noise is likely to change from moment to moment.
The methods and procedures described in this Standard are intended to be applicable to
sounds from all sources, individually and in combination, which contribute to the total
noise at a site. For certain types of sources more detailed procedures may be used, e.g.
reference is made to AS 1269, Acoustics?Hearing conservation, for situations where the
noise may cause hearing impairment. Specific measurements for road traffic, aircraft and
ship noise are dealt with in AS 2702 Acoustics? Methods for the measurement of road
traffic noise, AS 2021 Acoustics?Aircraft noise intrusion?Building siting and
construction and AS 1949 Acoustics?Measurement of airborne noise emitted by vessels
in waterways, ports and harbours respectively.
This Standard aims at providing authorities with material for the description of noise in
community environments. Based on the principles described in this Standard, acceptable
limits of noise can be specified and compliance with these limits can be controlled.

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This product was added to our catalog on Wednesday 26 September, 2012.