International Standard
ISO 7935:2024
Stationary source emissions — Determination of the mass concentration of sulfur dioxide in flue gases — Performance characteristics of automated measuring systems
Reference number
ISO 7935:2024
Edition 2
2024-02
International Standard
Read sample
ISO 7935:2024
83052
Published (Edition 2, 2024)

ISO 7935:2024

ISO 7935:2024
83052
Language
Format
CHF 173
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Abstract

This document specifies a method for the determination of sulfur dioxide (SO2) in flue gases of stationary sources and describes the fundamental structure and the key performance characteristics of automated measuring systems.

The method allows continuous monitoring with permanently installed measuring systems of SO2 emissions.

This document describes extractive systems and in situ (non-extractive) systems in connection with a range of analysers that operate using, for example, the following principles:

     non-dispersive infrared absorption (NDIR);

     Fourier transform infrared (FTIR) spectroscopy;

     laser spectroscopic technique or tunable laser spectroscopy (TLS);

     non-dispersive ultraviolet absorption (NDUV);

     differential optical absorption spectroscopy (DOAS).

Other equivalent instrumental methods can be used provided they meet the minimum performance requirements specified in this document. The measuring system can be validated with reference materials, according to this document, or comparable methods.

Automated measuring system (AMS) based on the principles listed above has been used successfully in this application for the measuring ranges as shown in Annex E.

General information

  •  : Published
     : 2024-02
    : International Standard published [60.60]
  •  : 2
     : 43
  • ISO/TC 146/SC 1
    13.040.40 
  • RSS updates

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

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