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Description of 21/30409886 DC 2021This International Standard specifies the fundamental structure and the key performance characteristics of automated measuring systems for nitrogen oxides (NOx) in flue gas of stationary sources. The method allows continuous monitoring with permanently installed measuring systems of NOx emissions. This International standard describes extractive systems and in situ (non-extractive) systems in connection with a range of analysers that operate using, for example, the following principles:
Other equivalent instrumental methods such as laser spectroscopic techniques can be used provided they meet the minimum requirements proposed in this International Standard. The measuring system can be validated with certified gases, in accordance with this International Standard, or comparable methods. Automated measuring system (AMS) based on the principles above has been used successfully in this application for the measuring ranges as shown in Annex F.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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