EN 15483:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Principle
6 Measurement planning
7 Measurement procedure
8 Calibration and quality assurance
9 Data processing
10 Sources of uncertainty
11 Servicing
Annex A (informative) - The classical Fourier transform
        spectrometer
Annex B (informative) - Monitoring configurations
Annex C (informative) - Equipment
Annex D (informative) - Conditions for measuring emission flux
Annex E (informative) - Servicing
Annex F (normative) - Performance characteristics
Annex G (informative) - Influence of fog on the spectra
Annex H (informative) - Sample form for a measurement record
Annex I (informative) - Calibration by using spectral lines
        from databases and determination of the instrument
        line shape (example)
Annex J (informative) - Example applications
Bibliography

This European Standard is applicable to open-path absorption measurements of 'concentration  path length' product using the Fourier transform infrared (FTIR) technique with an artificial radiation source. It is applicable to the continuous measurement of infrared active organic and inorganic compounds in the gaseous state in ambient air using fixed tropospheric open paths up to approximately 1 km in length and provides a spatial average.