Standard
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AS/NZS 3580.9.12:2022
[Current]Methods for sampling and analysis of ambient air, Method 9.12: Determination of suspended particulate matter — PM2.5 beta attenuation monitors
AS/NZS 3580.9.12:2022 sets out the method for the determination of suspended particulate matter in ambient air using a beta attenuation monitor (BAM). The method can provide a measure of the time-integrated mean particle concentrations for periods ranging from 10 min to 24 h.
Published: 04/03/2022
Pages: 24
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
4.1 Principle of measurement
4.2 Limitations and interferences
5 Apparatus
5.1 General
5.2 Types of beta attenuation monitors
5.2.1 General
5.2.2 Step-wise
5.2.3 Continuous
5.3 PM10 size selective inlet
5.4 PM2.5 particle size separator
5.5 Heated air inlet system
5.6 Measurement system
5.6.1 General
5.6.2 Filter system
5.6.3 Beta particle measurement system
5.6.4 Flow control system
5.6.5 Internal computer and data logger
5.7 Vacuum pump
5.8 Calibration equipment
5.8.1 Mass calibration foil kit
5.8.2 Reference flow meter
5.8.3 Reference thermometer
5.8.4 Reference barometer
5.8.5 Reference relative humidity device
5.8.6 Zero noise check particle filter
5.9 Instrument performance
6 Sampling
6.1 Location
6.2 Sampling environment
6.2.1 General
6.2.2 Heated air inlet system
7 Procedure
7.1 Instrument operation
7.2 Calibration
7.2.1 General
7.2.2 Particle mass checks and calibration
7.2.2.1 Particle mass — Factory calibration
7.2.2.2 Particle mass precision check
7.2.2.3 Particle mass calibration
7.2.2.4 Mass membrane/mass calibration foil kit check
7.2.3 Leak check
7.2.4 Temperature sensor check and calibration
7.2.5 Pressure transducer check and calibration
7.2.6 Flow rate check and calibration
7.2.7 Relative humidity sensor check and calibration
7.2.8 Zero noise check
7.3 Instrument maintenance
7.3.1 General
7.3.2 PM10 size selective inlet and PM2.5 particle size separator
7.3.3 Heated air inlet system
7.3.4 Measurement chamber
7.3.5 Pump reconditioning
8 Calculation and expression of results
9 Measurement uncertainty
10 Quality control and assurance
10.1 Instrument and station log
10.2 Data acquisition and transfer
10.3 Data validation
10.3.1 General
10.3.2 Handling negative mass data artefacts
11 Test report
12 Data retention
Appendix A
A.1 Scope
A.2 General
A.3 Calibration
A.4 Single point check
A.4.1 General
A.4.2 Reference thermometer check
A.4.2.1 Ice point check
A.4.2.2 Working point check
A.4.3 Instrument temperature sensor check
Appendix B
B.1 Scope
B.2 Initial calibration
B.3 Working point check
B.3.1 General
B.3.2 Barometer comparison
B.3.3 Remote reference barometer comparison
Appendix C
C.1 Scope
C.2 Initial calibration
C.3 Working point check
C.3.1 General
C.3.2 Relative humidity sensor comparison
Bibliography
Cited references in this standard
[Current]
General requirements for the competence of testing and calibration laboratories
[Current]
Methods for sampling and analysis of ambient air, Method 9.10: Determination of suspended particulate matter — PM 2. low volume sampler — Gravimetric method
[Current]
Methods for sampling and analysis of ambient air, Method 19: Ambient air quality data validation and reporting
[Current]
Methods for sampling and analysis of ambient air, Part 1.1: Guide to siting air monitoring equipment
[Current]
Methods for sampling and analysis of ambient air, Method 9.14: Determination of suspended particulate matter - PM2.5 high volume sampler with size selective inlet - Gravimetric method
Content history
[Available Superseded]
[Superseded]
DR AS/NZS 3580.9.12:2021
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