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AS/NZS 4323.3:2001

[Current]

Stationary source emissions, Part 3: Determination of odour concentration by dynamic olfactometry

Specifies a method for the measurement of odour concentration of pure substances, defined and undefined mixtures of gaseous odorants in air or nitrogen using dynamic olfactometry with a panel of human assessors being the sensors.
Published: 12/09/2001
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Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Application
2.1 General
2.2 Inclusions
2.3 Exclusions
3 Referenced documents
4 Definitions
5 Notation
6 The unit of measurement
7 Principle of measurement
8 Performance quality requirements
8.1 General
8.2 Accuracy—Statistical model
8.3 Overall sensory quality requirements
8.3.1 General
8.3.2 Quality criteria for the performance within one laboratory on reference material (odorant)
8.3.3 Assessment of the performance on non-reference materials (odorants)
8.3.3.1 General
8.3.3.2 Assessment of precision within one laboratory (repeatability)
8.3.3.3 Assessment of precision between laboratories (reproducibility)
8.4 Quality requirements for dilution apparatus
8.4.1 General
8.4.2 Quality criterion for accuracy of dilution
8.4.3 Procedure for testing compliance of a dilution apparatus
8.4.4 Quality criterion for instability of dilution apparatus
8.5 Quality requirements for sampling equipment
9 Materials, gases and panel members
9.1 General properties of materials
9.2 Sampling equipment
9.2.1 General
9.2.2 Materials for sample equipment
9.2.3 Conditioning of sample equipment
9.2.4 Cleaning and re-use of sample equipment
9.3 Sample container
9.3.1 Materials for sample container (bags)
9.3.2 Conditioning and testing of sample containers
9.3.3 Cleaning and re-use of containers
9.4 Gases
9.4.1 Neutral gas
9.4.2 Reference material: odorant (n-butanol)
9.4.3 Reference material for calibration of dilution equipment
9.5 Dilution apparatus
9.5.1 Construction of the olfactometer
9.5.2 Dilution range of olfactometer
9.5.3 Interface between nose and olfactometer
9.5.4 Lower detection limit of the olfactometric measurement
9.5.5 Calibration procedure
9.6 Environment for observations by assessors
9.6.1 Odour room
9.6.2 Air conditioning for the odour room
9.7 Panel
9.7.1 Code of behaviour for assessors and panel members
9.7.2 Selection of assessors on individual variability and sensitivity
9.7.3 Panel size
10 Sampling
10.1 General
10.2 Static sampling
10.3 Sampling procedures
10.3.1 Sample collection method
10.3.2 Pre-dilution
10.3.2.1 General
10.3.2.2 Sampling equipment and procedures
10.3.2.3 Calibration procedure for pre-dilution devices used for dynamic/static sampling
10.3.3 Transport and storage before measurement
10.4 Sampling strategy
10.4.1 General
10.4.2 Sampling time
10.4.3 Number of samples
10.4.4 Sampling equipment
10.4.5 Calibration procedure
11 Presentation of odorants to assessors
11.1 Choice modes
11.1.1 General
11.1.2 Yes/No mode
11.1.3 Forced choice mode
11.2 Evaluation time and inter-stimulus time
11.3 Number and order of presentations
11.3.1 Criteria
11.3.2 Initial determination of presentation series at the start of the measurement
11.4 Difference between subsequent concentrations
11.5 Number of rounds to determine a panel threshold
11.6 Occupational safety for assessors and olfactometer operators
12 Data recording, calculation and reporting
12.1 Minimum information recording requirements
12.1.1 Recording sampling information
12.1.2 Recording measurement information
12.2 Calculation of odour concentration of a sample from a set of panel member responses
12.2.1 General
12.2.2 Calculation of ITE for yes/no and forced choice
12.2.3 Retrospective screening of panel members after each measurement
12.2.4 Requirements of a set of panel member responses
12.3 Presentation and minimum requirements for reporting and archiving results
12.3.1 The minimum information for reporting
12.3.2 Minimum information for archiving concerning sampling
12.3.3 Minimum information for archiving concerning an odour concentration measurement
12.4 Calculation of odorant flow rate from odour concentration and volume flow rate
12.5 Calculation of odour abatement efficiency
Appendix A
A1 Anatomical and physiological principles
A2 Psychophysical principles
Appendix B
B1 Data
B2 Calculation of precision (expressed as repeatability)
B3 Calculation of accuracy
Appendix C
C1 Data
C2 Calculation of instrumental instability
C3 Calculation of instrumental accuracy
Appendix D
D1 Data
D2 Panel selection
Appendix E
Appendix F
F1 Data for forced choice using certainty and calculation of results
F2 Data for yes/no mode and calculation of results
Appendix G
Appendix H
Cited references in this standard
[Current]
Stationary source emissions, Method 1: Selection of sampling positions and measurement of velocity in stacks
[Current]
Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions — Technical Corrigendum 1
[Current]
Accuracy (trueness and precision) of measurement methods and results — Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
[Current]
Accuracy (trueness and precision) of measurement methods and results — Part 4: Basic methods for the determination of the trueness of a standard measurement method
[Current]
Stationary source emissions — Manual determination of mass concentration of particulate matter
Content history
AS/NZS 4323.3:2001 Rec:2014
DR 99306