AS/NZS 3580.15:2014
Methods for sampling and analysis of ambient air - Part 15: Determination of gaseous pollutants in ambient air using differential optical absorption spectrometry (DOAS) - Direct-reading instrumental method
Provides regulatory and testing bodies with a method for monitoring gaseous ambient air pollutants with open path monitoring equipment utilizing the differential optical absorption spectrometry (DOAS) technique.
AS/NZS 3580.15:2014 METHODS FOR SAMPLING AND ANALYSIS OF AMBIENT AIR - DETERMINATION OF GASEOUS POLLUTANTS IN AMBIENT...
PREFACE
1 SCOPE
2 REFERENCED DOCUMENTS
3 DEFINITIONS
3.1 Full scale (FS)
3.2 Interferent
3.3 Linearity
3.4 Lower detectable limit
3.5 Noise
3.6 Parts per billion (ppb)
3.7 Parts per million (ppm)
3.8 Precision
3.9 Proficiency audit
3.10 Range
3.11 Repeatability
3.12 Rise time
3.13 Span drift
3.14 Test atmosphere
3.15 U95
3.16 UV-visible spectrum
3.17 Zero drift
4 PRINCIPLE
4.1 Principle of measurement
4.2 Applicable gases
5 APPARATUS
5.1 General
5.2 Transmitter
5.3 Receiver
5.4 Spectrometer
5.4.1 General
5.4.2 Photosensor array system
5.4.3 Grating system
5.5 Data processing system
5.6 Instrument performance
5.7 Reference barometer
5.8 Reference thermometer
5.9 Reference optical path length measurement device
5.10 Reference calibration cell length measurement device
6 SAMPLING
6.1 Sampling site
6.2 Light levels
6.3 Sampling shelter
7 PROCEDURE
7.1 General
7.2 Standard addition method
7.3 Calibration bench method
7.4 Calibration cell length
7.5 Optical path length
7.6 Optical path temperature and pressure
7.7 Instrument zero
7.8 Reference test atmosphere
7.9 Zero and span calibration
7.10 Multipoint precision check
7.11 Operational precision checks
7.12 Operational recalibration
7.13 Instrument operation
8 MAINTENANCE
8.1 General
8.2 Window clean
8.3 Lamp change
8.4 Optical alignment
8.5 Optical path inspection
9 CALCULATION AND EXPRESSION OF RESULTS
10 MEASUREMENT UNCERTAINTY
11 QUALITY ASSURANCE AND CONTROL
11.1 General
11.2 Monitoring station/instrument log
11.3 Proficiency audits
11.4 Data acquisition and transfer
11.5 Data validation
12 REPORT
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AS/NZS 3580.15:2014 METHODS FOR SAMPLING AND ANALYSIS OF AMBIENT AIR - DETERMINATION OF GASEOUS POLLUTANTS IN AMBIENT...
PREFACE
1 SCOPE
2 REFERENCED DOCUMENTS
3 DEFINITIONS
3.1 Full scale (FS)
3.2 Interferent
3.3 Linearity
3.4 Lower detectable limit
3.5 Noise
3.6 Parts per billion (ppb)
3.7 Parts per million (ppm)
3.8 Precision
3.9 Proficiency audit
3.10 Range
3.11 Repeatability
3.12 Rise time
3.13 Span drift
3.14 Test atmosphere
3.15 U95
3.16 UV-visible spectrum
3.17 Zero drift
4 PRINCIPLE
4.1 Principle of measurement
4.2 Applicable gases
5 APPARATUS
5.1 General
5.2 Transmitter
5.3 Receiver
5.4 Spectrometer
5.4.1 General
5.4.2 Photosensor array system
5.4.3 Grating system
5.5 Data processing system
5.6 Instrument performance
5.7 Reference barometer
5.8 Reference thermometer
5.9 Reference optical path length measurement device
5.10 Reference calibration cell length measurement device
6 SAMPLING
6.1 Sampling site
6.2 Light levels
6.3 Sampling shelter
7 PROCEDURE
7.1 General
7.2 Standard addition method
7.3 Calibration bench method
7.4 Calibration cell length
7.5 Optical path length
7.6 Optical path temperature and pressure
7.7 Instrument zero
7.8 Reference test atmosphere
7.9 Zero and span calibration
7.10 Multipoint precision check
7.11 Operational precision checks
7.12 Operational recalibration
7.13 Instrument operation
8 MAINTENANCE
8.1 General
8.2 Window clean
8.3 Lamp change
8.4 Optical alignment
8.5 Optical path inspection
9 CALCULATION AND EXPRESSION OF RESULTS
10 MEASUREMENT UNCERTAINTY
11 QUALITY ASSURANCE AND CONTROL
11.1 General
11.2 Monitoring station/instrument log
11.3 Proficiency audits
11.4 Data acquisition and transfer
11.5 Data validation
12 REPORT