AS/NZS 1269.1:1998
Warning: Superseded Standard. This document has been replaced by:
AS/NZS 1269.1:2005Occupational noise management - Measurement and assessment of noise immission and exposure
Describes the types of noise assessment which may be required in an occupational noise management program and the procedures and measuring instrumentation required to perform these assessments.
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AS/NZS 1269.1:1998 OCCUPATIONAL NOISE MANAGEMENT - MEASUREMENT AND ASSESSMENT OF NOISE IMMISSION AND EXPOSURE
PREFACE
CONTENTS
1 SCOPE
2 REFERENCED DOCUMENTS
3 DEFINITIONS
3.1 A-weighted noise exposure
3.2 Eight-hour equivalent continuous A-weighted sound pressure level
3.3 Equivalent continuous weighted sound pressure level
3.4 Partial noise exposure
3.5 Peak sound pressure level
3.6 Reference sound source
3.7 Representative working day
3.8 Sound level or weighted sound pressure level
3.9 Sound pressure level (SPL)
3.10 Total daily noise exposure
4 MEASURES OF NOISE EMISSION, IMMISSION AND EXPOSURE
4.1 Measures of emission (of a source)
4.2 Measures of immission and exposure
4.2.1 General
4.2.2 Immission (at a location)
4.2.3 Exposure (of a person)
5 TYPES OF NOISE ASSESSMENT
5.1 Assessment of exposure to noise
5.1.1 General
5.1.2 Preliminary assessment
5.1.3 Detailed assessment
5.1.4 Follow-up assessment
5.2 Assessment for noise reduction
5.3 Assessment for personal hearing protector program
5.4 Assessment of noise exposure from headphones or insert earphones
6 INSTRUMENTATION AND CALIBRATION
6.1 General
6.2 Integrating-averaging sound level meter
6.3 Personal sound exposure meter (PSEM)
6.4 Non-integrating sound level meter
6.5 Instruments for the measurement of peak sound pressure level
6.6 Reference sound sources
6.7 Octave-band filters
6.8 Auxiliary instruments
6.9 Auxiliary equipment
6.10 Calibration
7 NOISE MEASUREMENT PROCEDURES
7.1 General
7.2 Field reference level checking
7.3 Procedures for assessment of noise exposure
7.3.1 General
7.3.2 Measurement of ...
7.3.3 Measurement of ...
7.3.4 Measurement of peak sound pressure level
7.3.5 Microphone locations
7.4 Measurement period
7.5 Measurement procedure for selection of hearing protectors
7.6 Frequency analysis
7.7 Infrasound and ultrasound
7.8 Noise measurements in hazardous environments
8 NOISE EVALUATION
8.1 Determination of E(A,T)
8.2 Determination of L(Aeq,T)
8.3 Determination of L(Aeq,8h)
8.4 Extended workshifts
8.5 Determination of L(Aeq,8h)n
8.6 Determination of L(norm)Aeq,8h
8.7 Noise exposure of groups
8.8 Assessment data to be recorded
9 CHECKLISTS
APPENDIX A - COMPETENCY AND TRAINING OF PEOPLE UNDERTAKING DETAILED NOISE ASSESSMENTS
APPENDIX B - TOPICS RECOMMENDED FOR INCLUSION IN A TRAINING COURSE FOR NOISE ASSESSMENT
B1 GENERAL
B2 BASIC ACOUSTICS
B3 ANALYSIS OF SOUND WAVES
B4 SOUND MEASUREMENT INSTRUMENTATION
B5 NEED FOR NOISE CONTROL
B6 EVALUATION OF NOISE
B7 PRACTICAL NOISE ASSESSMENTS
B8 OTHER NOISE MEASUREMENTS
B9 NOISE REDUCTION
B10 STATUTORY REQUIREMENTS AND GUIDANCE LITERATURE
APPENDIX C - RECOMMENDED PROCEDURES FOR MEASUREMENT OF SOUND PRESSURE LEVELS FROM HEADPHONES OR INSERT EARPHONES
C1 RECOMMENDED MEASUREMENT PROCEDURE
C2 CONVERSION OF MEASURED LEVELS TO EQUIVALENT DIFFUSE FIELD LEVELS
C3 ALTERNATIVE METHOD OF MEASUREMENT FOR HEADPHONES
C4 PROBE-TUBE MICROPHONE MEASUREMENTS
C5 FURTHER READING
APPENDIX D - GENERAL INFORMATION ON AUXILIARY MEASURING DEVICES
D1 AUXILIARY EQUIPMENT
D2 GRAPHIC LEVEL RECORDER
D3 TAPE RECORDER
D3.1 General characteristics
D3.2 Precautions when selecting or using a tape recorder
D4 FREQUENCY SPECTRUM ANALYSER
D5 SOLID STATE RECORDING INSTRUMENTATION
APPENDIX E - PROCEDURE FOR DETERMINATION OF E(A,T), L(Aeq,T) AND L(Aeq,8h)
E1 PARTIAL NOISE EXPOSURE
E2 DETERMINATION OF E(A,T)
E3 DETERMINATION OF L(Aeq,T)
E4 DETERMINATION OF L(Aeq,8h)
E5 DETERMINATION OF L(Aeq,8h)n.
E6 DETERMINATION OF L(norm)Aeq,8h
E7 EXAMPLES
E7.1 General
E7.2 CALCULATION USING TABLE E2
E7.3 CALCULATIONS USING THE EQUATIONS IN CLAUSE 8
E8 EXAMPLE OF CALCULATION OF AVERAGE DAILY NOISE EXPOSURE FOR 5 WORKING DAYS OF VARYING DAILY EXPOSURES TO NOISE
E8.1 Example levels
E8.2 Calculation using conversion Appendix F
E8.3 Calculation using the equation in Clause 8.5
E9 EXAMPLE OF CALCULATION OF NOISE EXPOSURE LEVEL NORMALIZED TO A FIVE DAY WORKING WEEK
E9.1 Example levels
E9.2 Calculation using conversion Appendix F
E9.3 Calculation using the equation in Clause 8.6
APPENDIX F - RELATIONSHIP BETWEEN L(Aeq,8h) AND E(A,T) VALUES
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References
- AS/NZS 1269.0:1998
Occupational noise management - Overview
Related Information
Approved Code Of Practice For The Management Of Noise In The Workplace
Ministry: WorkSafe New Zealand
Section: 4.6 Follow-up Assessments
Citation context:
Where a follow-up assessment is required, for example, to monitor changes to the noise exposure(s) due to various factors, the assessment must be made with appropriate instruments and in accordance with AS/NZS 1269.1 to ensure comparability with the resulApproved Code Of Practice For The Management Of Noise In The Workplace
Ministry: WorkSafe New Zealand
Section: B.1 Noise Measurements and Assessments
Citation context:
Topics recommended for inclusion in a training course for noise assessment should include: ... Understanding of the HSE Act, the regulations relating to noise, AS/NZS 1269:1998 and a general knowledge of this code of practice.Introducing The Approved Code Of Practice For The Management Of Noise In The Workplace (2002)
Ministry: WorkSafe New Zealand
Section: Intro
Citation context:
The main reason for the revision is to bring the OSH approved code of practice into line with AS/NZS 1269:1998 Occupational noise management, published jointly by Standards Australia and Standards New Zealand.Introducing The Approved Code Of Practice For The Management Of Noise In The Workplace (2002)
Ministry: WorkSafe New Zealand
Section: What are the main changes?
Citation context:
The main changes are: Recognition of AS/NZS 1269:1998 Parts 0 - 4. However, many of the changes in this standard series relate more to the practices of “competent persons”, rather than further requirements on employers in their management of noise in theSelection And Use Of Hearing Protectors
Ministry: WorkSafe New Zealand
Section: LIST OF CLASSIFIED HEARING PROTECTORS
Citation context:
All new earmuffs and earplug packaging must be clearly marked (with the appropriate numbers inserted) as follows: HEARING PROTECTOR CLASS X Tested to AS/NZS1270, when selected, used and maintained as specified in AS/NZS 1269 this protector may be used inSelection And Use Of Hearing Protectors
Ministry: WorkSafe New Zealand
Section: PERSONAL HEARING PROTECTORS
Citation context:
The information contained in this publication is intended to assist employers and employees to choose hearing protectors that will give suitable protection against excessive noise levels and exposures. It is based on ... and the Joint Australian/New ZealaSelection And Use Of Hearing Protectors
Ministry: WorkSafe New Zealand
Section: SELECTION AND USE OF HEARING PROTECTORS
Citation context:
In order to ensure that an employer fulfils their obligations under the Act, it is recommended that the procedures and requirements of AS/NZS1269: 1998 be adopted.Approved Code Of Practice For The Management Of Noise In The Workplace
Ministry: WorkSafe New Zealand
Section: 4.2 Detailed Noise Assessments to be Carried Out by a Competent Person
Citation context:
Detailed noise assessments must be carried out by a competent person. The competent person carrying out the assessment should have a thorough understanding of ... The Act, AS/NZS 1269 and this code.Approved Code Of Practice For The Management Of Noise In The Workplace
Ministry: WorkSafe New Zealand
Section: B.2 Audiometric Testing
Citation context:
Assessment of competency should include the means to test knowledge of relevant legislation and codes of practice as well as AS/NZS 1269, compliance with the standard’s audiometric test procedure and factors affecting the accuracy of results. The tester mApproved Code Of Practice For The Management Of Noise In The Workplace
Ministry: WorkSafe New Zealand
Section: Introduction
Citation context:
Mentioned many timesApproved Code Of Practice For The Management Of Noise In The Workplace
Ministry: WorkSafe New Zealand
Section: 4.3 Methods and Equipment for Detailed Noise Assessments
Citation context:
The methods of how measurements and assessments must be undertaken are detailed in AS/NZS 1269, 1998: Part 1 Measurement and assessment of noise immission and exposure.Approved Code Of Practice For The Management Of Noise In The Workplace
Ministry: WorkSafe New Zealand
Section: APPENDIX I: DEFINITIONS
Citation context:
Mentioned many timesApproved Code Of Practice For The Management Of Noise In The Workplace
Ministry: WorkSafe New Zealand
Section: F.4.2 Application of Information
Citation context:
An employee’s noise exposure is essentially the noise measured at the ear during a representative working day (see AS/NZS 1269.1 for more information).Approved Code Of Practice For The Management Of Noise In The Workplace
Ministry: WorkSafe New Zealand
Section: G.3.2 Information on the packaging
Citation context:
Where type testing has been conducted according to AS/NZS 1270:2002 the following statement shall be displayed: "Hearing protector class X tested to AS/NZS 1270. When selected, used and maintained as specified in AS/NZS 1269, this protector may be used inApproved Code Of Practice For The Management Of Noise In The Workplace
Ministry: WorkSafe New Zealand
Section: D.1 Determination of Appropriate Protectors
Citation context:
The suitable type of hearing protector for a given exposure condition therefore normally requires only the determination of the Noise Exposure Level (LAeq,8h) and the Peak Level (Lpeak). Details of the determination of the LAeq,8h and Lpeak are containedApproved Code Of Practice For The Management Of Noise In The Workplace
Ministry: WorkSafe New Zealand
Section: F.4.3 Determining Noise Exposure from Information
Citation context:
If this is not the case, the test results need to be modified and adjusted in order to give an estimate of the total noise level when installed (See the procedure for the determination of LAeq,8h in Appendix E of AS/NZS 1269.1). ... The procedures in AS/NApproved Code Of Practice For The Management Of Noise In The Workplace
Ministry: WorkSafe New Zealand
Section: 4.4 Noise Evaluation Proceduress
Citation context:
The procedures for determining the levels of noise and the noise exposures from the results of the levels measured during the detailed assessment are stated in Appendix E of AS/NZS 1269.1. These procedures should be followed.- 17.140 Acoustics and acoustic measurements
Similar Standards
- AS/NZS 1269.0:2005
Occupational noise management - Overview and general requirements
- AS/NZS 1269.1:2005
Occupational noise management - Measurement and assessment of noise immission and exposure
- AS/NZS 1269.1:2005 A1
Occupational noise management - Measurement and assessment of noise immission and exposure: Amendment 1
- AS/NZS 1269.2:2005
Occupational noise management - Noise control management
AS/NZS 1269.1:1998 OCCUPATIONAL NOISE MANAGEMENT - MEASUREMENT AND ASSESSMENT OF NOISE IMMISSION AND EXPOSURE
PREFACE
CONTENTS
1 SCOPE
2 REFERENCED DOCUMENTS
3 DEFINITIONS
3.1 A-weighted noise exposure
3.2 Eight-hour equivalent continuous A-weighted sound pressure level
3.3 Equivalent continuous weighted sound pressure level
3.4 Partial noise exposure
3.5 Peak sound pressure level
3.6 Reference sound source
3.7 Representative working day
3.8 Sound level or weighted sound pressure level
3.9 Sound pressure level (SPL)
3.10 Total daily noise exposure
4 MEASURES OF NOISE EMISSION, IMMISSION AND EXPOSURE
4.1 Measures of emission (of a source)
4.2 Measures of immission and exposure
4.2.1 General
4.2.2 Immission (at a location)
4.2.3 Exposure (of a person)
5 TYPES OF NOISE ASSESSMENT
5.1 Assessment of exposure to noise
5.1.1 General
5.1.2 Preliminary assessment
5.1.3 Detailed assessment
5.1.4 Follow-up assessment
5.2 Assessment for noise reduction
5.3 Assessment for personal hearing protector program
5.4 Assessment of noise exposure from headphones or insert earphones
6 INSTRUMENTATION AND CALIBRATION
6.1 General
6.2 Integrating-averaging sound level meter
6.3 Personal sound exposure meter (PSEM)
6.4 Non-integrating sound level meter
6.5 Instruments for the measurement of peak sound pressure level
6.6 Reference sound sources
6.7 Octave-band filters
6.8 Auxiliary instruments
6.9 Auxiliary equipment
6.10 Calibration
7 NOISE MEASUREMENT PROCEDURES
7.1 General
7.2 Field reference level checking
7.3 Procedures for assessment of noise exposure
7.3.1 General
7.3.2 Measurement of ...
7.3.3 Measurement of ...
7.3.4 Measurement of peak sound pressure level
7.3.5 Microphone locations
7.4 Measurement period
7.5 Measurement procedure for selection of hearing protectors
7.6 Frequency analysis
7.7 Infrasound and ultrasound
7.8 Noise measurements in hazardous environments
8 NOISE EVALUATION
8.1 Determination of E(A,T)
8.2 Determination of L(Aeq,T)
8.3 Determination of L(Aeq,8h)
8.4 Extended workshifts
8.5 Determination of L(Aeq,8h)n
8.6 Determination of L(norm)Aeq,8h
8.7 Noise exposure of groups
8.8 Assessment data to be recorded
9 CHECKLISTS
APPENDIX A - COMPETENCY AND TRAINING OF PEOPLE UNDERTAKING DETAILED NOISE ASSESSMENTS
APPENDIX B - TOPICS RECOMMENDED FOR INCLUSION IN A TRAINING COURSE FOR NOISE ASSESSMENT
B1 GENERAL
B2 BASIC ACOUSTICS
B3 ANALYSIS OF SOUND WAVES
B4 SOUND MEASUREMENT INSTRUMENTATION
B5 NEED FOR NOISE CONTROL
B6 EVALUATION OF NOISE
B7 PRACTICAL NOISE ASSESSMENTS
B8 OTHER NOISE MEASUREMENTS
B9 NOISE REDUCTION
B10 STATUTORY REQUIREMENTS AND GUIDANCE LITERATURE
APPENDIX C - RECOMMENDED PROCEDURES FOR MEASUREMENT OF SOUND PRESSURE LEVELS FROM HEADPHONES OR INSERT EARPHONES
C1 RECOMMENDED MEASUREMENT PROCEDURE
C2 CONVERSION OF MEASURED LEVELS TO EQUIVALENT DIFFUSE FIELD LEVELS
C3 ALTERNATIVE METHOD OF MEASUREMENT FOR HEADPHONES
C4 PROBE-TUBE MICROPHONE MEASUREMENTS
C5 FURTHER READING
APPENDIX D - GENERAL INFORMATION ON AUXILIARY MEASURING DEVICES
D1 AUXILIARY EQUIPMENT
D2 GRAPHIC LEVEL RECORDER
D3 TAPE RECORDER
D3.1 General characteristics
D3.2 Precautions when selecting or using a tape recorder
D4 FREQUENCY SPECTRUM ANALYSER
D5 SOLID STATE RECORDING INSTRUMENTATION
APPENDIX E - PROCEDURE FOR DETERMINATION OF E(A,T), L(Aeq,T) AND L(Aeq,8h)
E1 PARTIAL NOISE EXPOSURE
E2 DETERMINATION OF E(A,T)
E3 DETERMINATION OF L(Aeq,T)
E4 DETERMINATION OF L(Aeq,8h)
E5 DETERMINATION OF L(Aeq,8h)n.
E6 DETERMINATION OF L(norm)Aeq,8h
E7 EXAMPLES
E7.1 General
E7.2 CALCULATION USING TABLE E2
E7.3 CALCULATIONS USING THE EQUATIONS IN CLAUSE 8
E8 EXAMPLE OF CALCULATION OF AVERAGE DAILY NOISE EXPOSURE FOR 5 WORKING DAYS OF VARYING DAILY EXPOSURES TO NOISE
E8.1 Example levels
E8.2 Calculation using conversion Appendix F
E8.3 Calculation using the equation in Clause 8.5
E9 EXAMPLE OF CALCULATION OF NOISE EXPOSURE LEVEL NORMALIZED TO A FIVE DAY WORKING WEEK
E9.1 Example levels
E9.2 Calculation using conversion Appendix F
E9.3 Calculation using the equation in Clause 8.6
APPENDIX F - RELATIONSHIP BETWEEN L(Aeq,8h) AND E(A,T) VALUES