NZS 6801:2008
Acoustics - Measurement of environmental sound
Defines basic quantities to be used for the description of sound in community environments and describes procedures for the measurement of these quantities. The procedures described are intended to enable consistent measurement of environmental sound for all conditions within the scope of the Standard. These procedures are referenced by other Standards in the Acoustics series. Users of this Standard are assumed to have a basic understanding of the science of acoustics and experience in sound measurement. The Standard may be cited in local authority rules, plans, and consent conditions or in National Environmental Standards to avoid the need for inclusion of technical information while ensuring national consistency in sound measurement methods.
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Committee Representation
Acknowledgement
Copyright
Contents
Referenced documents
Related documents
Latest Revisions
Foreword
Review of Standards
1 Scope
2 Interpretation
2.1 TERMINOLOGY
2.2 Time interval
3 Definitions
4 Symbols
4.1 Quantities
4.2 Notation
5 Instumentation
5.1 Sound level meters
5.2 Calibration
5.3 Field checks
5.4 Accessory equipment
6 Measurements
6.1 Measurement positions
6.2 Measurements inside buildings
6.3 When and how long to measure
7 Meteorological effects
7.1 Introduction
7.2 Meteorological window
8 Determination of sound descriptors
8.1 General
8.2 Steady sound
8.3 Steady sound with stepped variations of level
8.4 Cyclic sound and separate events
8.5 Fluctuating sound
8.6 Impulsive sound
8.7 Background sound level
9 Information to be included in reports
9.1 Introduction
9.2 Instrumentation and data processing
9.3 Measurement technique
9.4 Conditions prevailing during measurement
9.5 Acoustic data and description
9.6 Uncertainty
Appendix A –Uncertainty
Appendix B–Prediction of Sound
Appendix C –Propagation of Sound Outdoors
C1 General
C2 Geometrical divergence
C3 Air absorption
C4 Effects of the environment
C5 Effect of a level reflecting ground
C6 Classification of ground surfaces
C7 Refraction due to wind velocity and temperature gradients
C8 Atmospheric turbulence
C9 Miscellaneous attenuation
C10 Attenuation due to barriers
Figure
1 – Total sound, specific sounds, and residual sound
C1 – Ray paths showing upward and downward refraction of sound waves
Table
1– Symbols for sound quantities
B1 – Incoming solar radiation
B2 – Sun altitude prediction
B3 – Definition of Pasquill stability categories
B4 – Determination of meteorological category
Previous versions
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Related Information
Resource Management (National Environmental Standards For Telecommunication Facilities) Regulations 2016
Ministry: Ministry for the Environment
Section: 24(5)
Citation context:How noise to be measured (5) The measurement of the noise from a cabinet must be— (a) made in accordance with NZS 6801; and (b) adjusted in accordance with NZS 6801 to a free field incident sound level; and...
Resource Management (National Environmental Standards For Telecommunication Facilities) Regulations 2008 - Revoked
Ministry: Ministry for the Environment
Section: 9(4)
Citation context:The noise from the cabinet must be measured in accordance with NZS 6801: 2008 Acoustics – Measurement of environmental sound, the measurement must be adjusted in accordance with NZS 6801: 2008 Acoustics – Measurement of environmental sound to a free field
Resource Management (National Environmental Standards For Telecommunication Facilities) Regulations 2016
Ministry: Ministry for the Environment
Section: 24(8)
Citation context:In this regulation... ...LAeq(5min) has the same meaning as in NZS 6801 (and) LAFmax has the same meaning as in NZS 6801 (and) NZS 6801 means NZS 6801:2008 Acoustics – Measurement of environmental sound
Resource Management (National Environmental Standards for Plantation Forestry) Regulations 2017
Ministry: Ministry for Primary Industries
Section: 98(5)
Citation context:Noise must be measured in accordance with NZS 6801 and assessed in accordance with NZS 6802.
Resource Management (National Environmental Standards for Plantation Forestry) Regulations 2017
Ministry: Ministry for Primary Industries
Section: 98(7)
Citation context:LAeq has the same meaning as in NZS 6801; LAFmax has the same meaning as in NZS 6801; LZpeak has the same meaning as in NZS 6801; NZS 6801 means the document referred to in item 6 of Schedule 2 (NZS 6801: 2008 Acoustics – Measurement of environmental sound)
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Committee Representation
Acknowledgement
Copyright
Contents
Referenced documents
Related documents
Latest Revisions
Foreword
Review of Standards
1 Scope
2 Interpretation
2.1 TERMINOLOGY
2.2 Time interval
3 Definitions
4 Symbols
4.1 Quantities
4.2 Notation
5 Instumentation
5.1 Sound level meters
5.2 Calibration
5.3 Field checks
5.4 Accessory equipment
6 Measurements
6.1 Measurement positions
6.2 Measurements inside buildings
6.3 When and how long to measure
7 Meteorological effects
7.1 Introduction
7.2 Meteorological window
8 Determination of sound descriptors
8.1 General
8.2 Steady sound
8.3 Steady sound with stepped variations of level
8.4 Cyclic sound and separate events
8.5 Fluctuating sound
8.6 Impulsive sound
8.7 Background sound level
9 Information to be included in reports
9.1 Introduction
9.2 Instrumentation and data processing
9.3 Measurement technique
9.4 Conditions prevailing during measurement
9.5 Acoustic data and description
9.6 Uncertainty
Appendix A –Uncertainty
Appendix B–Prediction of Sound
Appendix C –Propagation of Sound Outdoors
C1 General
C2 Geometrical divergence
C3 Air absorption
C4 Effects of the environment
C5 Effect of a level reflecting ground
C6 Classification of ground surfaces
C7 Refraction due to wind velocity and temperature gradients
C8 Atmospheric turbulence
C9 Miscellaneous attenuation
C10 Attenuation due to barriers
Figure
1 – Total sound, specific sounds, and residual sound
C1 – Ray paths showing upward and downward refraction of sound waves
Table
1– Symbols for sound quantities
B1 – Incoming solar radiation
B2 – Sun altitude prediction
B3 – Definition of Pasquill stability categories
B4 – Determination of meteorological category
Previous versions
NZS 6801:2008
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.