声学 - 环境噪声的评估

NZS 6802:1999

The Standard can be used in conjunction with other regulatory documents. The Standard may be cited in noise performance standards to avoid the need for inclusion of technical information while ensuring some national uniformity in methods for assessment of environmental sound.

It is recognized that as the 1991 version of this Standard is cited in many District Plans, it will continue in use until those plans are changed.

The term “normative” is used in this Standard to define the application of the appendix to which it applies. A “normative” appendix is an integral part of a Standard, whereas an “informative” appendix is only for information and guidance.

REVIEW OF STANDARDS

Suggestions for improvement of this Standard will be welcomed. They should be sent to the Chief Executive, Standards New Zealand, Private Bag 2439, Wellington 6020.

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NZS 6802:1999

COMMITTEE REPRESENTATION

This Standard was prepared by the Acoustics – Measurement and Assessment of Environmental Sound Committee (EV/10/7) for the Standards Council established under the Standards Act 1988.

The committee consisted of representatives from the following organizations:

• Acousafe Consulting and Engineering Ltd
• Bel Acoustic Consulting
• Crown Health Enterprises
• ECS Ltd (formerly Electroacoustic Calibration Services Ltd)
• Hegley Acoustic Consultants
• Local Government New Zealand
• Malcolm Hunt Associates
• Marshall Day Acoustics
• Ministry for the Environment
• Ministry of Health
• National Environmental Noise Service
• New Zealand Institute of Environmental Health
• Philip Dickinson Acoustics
• University of Auckland – Acoustics Research Centre

ACKNOWLEDGEMENT

This project was commissioned by the Ministry of Health as part of its strategy to improve, promote and protect public health. The voluntary contribution of time by the above listed representatives is acknowledged.

© COPYRIGHT

The copyright of this document is the property of the Standards Council. No part of it may be reproduced by photocopying or by any other means without the prior written permission of the Chief Executive of Standards New Zealand unless the copying is carried out by or on behalf of a Territorial Authority in the process of preparing its local bylaw, or the circumstances are covered by Part III of the Copyright Act 1994.

Standards New Zealand will vigorously defend the copyright in this Standard. Every person who breaches Standards New Zealand's copyright may be liable to a fine not exceeding $50,000 or to imprisonment for a term not to exceed three months. If there has been a flagrant breach of copyright, Standards New Zealand may also seek additional damages from the infringing party, in addition to obtaining injunctive relief and an account of profits.

Published by Standards New Zealand, the trading arm of the Standards Council, Private Bag 2439, Wellington 6020.

Telephone: (04) 498 5990, Fax: (04) 498 5994.

Website: www.standards.co.nz

AMENDMENTS

No	Date of issue	Description	Entered by, and date

2

CONTENTS	PAGE
Committee representation	IFC
Acknowledgement	IFC
Copyright	IFC
Related documents	2
Foreword	3
Review of standards	4
Section
1 Scope	5
2 Interpretation	5
3 Definitions	6
4 Assessment of environmental sound	6
4.1 General	6
4.2 Description of sounds under investigation	6
4.3 Measurement of environmental sound	7
5 Rating level	7
6 Maximum sound level	7
6.1 Sleep protection	7
6.2 Identification of Lmax noise events	8
7 Specifications for noise limits	8
7.1 General	8
7.2 Setting noise limits	8
7.3 Elements of noise limits	8
7.4 Specification of noise limits	9
8 Guidelines for the protection of health and amenity	10
8.1 General	10
8.2 Guideline noise limits	10
8.3 Application of guidelines	11
8.4 Measurement location	11
8.5 Method of assessment	12
9 Information to be included in reports	12
Appendix
A Rating level	13
Table
1 Guideline noise limits	10
2 Limits for noise measured indoors	11
Figure
A1 Adjustment to account for background Leq	15

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NZS 6802:1999

RELATED DOCUMENTS

Reference is made in this Standard to the following:

NEW ZEALAND STANDARDS

NZS 6801:1999 Acoustics – Measurement of sound

NZS 6802: 1991 Assessment of environmental sound

AMERICAN STANDARD

ANSI S12.9: - - - - Quantities and procedures for description and measurement of environmental sound

Part 3 : 1993 Short-term measurements with an observer present

AUSTRALIAN STANDARDS

AS 1055:- - - - Acoustics – Description and measurement of environmental noise

Part 1–1997 General procedures

Part 2–1997 Application to specific situations

Part 3–1997 Acquisition of data pertinent to land use

NEW ZEALAND LEGISLATION

Health Act 1956

Resource Management Act 1991

Standards Act 1988

OTHER PUBLICATIONS

Berglund, B. and Lindvall, T. 1995. Community Noise. World Health Organisation.

The users of this Standard should ensure that their copies of the above-mentioned New Zealand Standards and referenced overseas Standards are the latest revisions or include the latest amendments. Such amendments are listed in the annual SNZ Catalogue which is supplemented by lists contained in the monthly magazine Standards Update issued free of charge to subscribing members of Standards New Zealand.

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FOREWORD

This Standard is a revision of NZS 6802:1991 Assessment of environmental sound which was published in May 1992. While under the auspices of joint committee EV/10, the revision of NZS 6802:1991 was designated as a New Zealand only project after consultation with Standards Australia. The reason for this decision was that the manner of use of this Standard in the context of New Zealand law is different to the manner of use of the equivalent Australian Standard AS 1055:Parts 1- 3:1997 in Australia.

All Standards are revised periodically as the need arises. By 1997 a number of defects and improvements were identified by environmental acoustical practitioners as a result of experience in using the Standard. In considering the application of the Standard, the Environment Court has sometimes identified poor drafting, ambiguities or unenforceable provisions.

The Ministry of Health has a role in improving, promoting and protecting public health. The Ministry contracted Standards New Zealand to revise NZS 6802:1991 as part of its strategy of reducing the adverse health effects and optimizing positive health effects in the local environment, including noise. A committee of environmental acoustics specialists and representatives of stake-holders in environmental noise work was appointed by Standards New Zealand to review the Standard. The review of NZS 6802:1991 was concurrent with that of NZS 6801:1991.

Major changes have been made to this Standard partly to conform with current Australian and international practices, and partly to meet the needs of territorial authorities. L_eq replaces L₁₀ as the descriptor for intrusive noise and there are significant changes to the method of assessment. A rating level is introduced for comparison with noise limits. Additional information is provided to guide drafting of noise conditions and rules, and guideline sound levels are amended to take into account other changes.

This Standard provides methods for the assessment of sound measured in accordance with NZS 6801:1999. For practical purposes noise may be defined as unwanted sound. The procedures described are intended to enable consistent assessment of environmental sound for all conditions within the scope of the Standard. This Standard gives guidance on:

(a) Procedures for assessing noise and comparing measured sound with noise limits;

(b) Guideline numerical noise limits for the protection of public health and amenity;

(c) Specifications for noise rules, performance standards or resource consent conditions.

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NZS 6802:1999

The Standard can be used in conjunction with other regulatory documents. The Standard may be cited in noise performance standards to avoid the need for inclusion of technical information while ensuring some national uniformity in methods for assessment of environmental sound.

It is recognized that as the 1991 version of this Standard is cited in many District Plans, it will continue in use until those plans are changed.

The term “normative” is used in this Standard to define the application of the appendix to which it applies. A “normative” appendix is an integral part of a Standard, whereas an “informative” appendix is only for information and guidance.

REVIEW OF STANDARDS

Suggestions for improvement of this Standard will be welcomed. They should be sent to the Chief Executive, Standards New Zealand, Private Bag 2439, Wellington 6020.

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