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4. Measurement methods
Operators of certain industrial plants are often required to measure their own nitrogen oxide emissions on an ongoing basis, as this is an integral part of their process.
In practice, in combustion fumes, excluding nitrous oxide N 2 O, a stable compound, the NO 2 concentration represents less than 5% of the total NO x concentration and the measurement of NO alone may suffice. However, in other cases (gas turbine fumes in particular), the presence of NO 2 is no longer negligible, then requiring measurement of the sum of NO and NO 2 .
In these cases, where NO 2 measurement...
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Bibliography
Regulations
Council Directive 96/61/EC of September 24, 1996 concerning integrated pollution prevention and control, known as the IPPC Directive (OJ L 257, October 10, 1996, p. 26-40).
Directive 2000/76/EC of the European Parliament and of the Council of December 4, 2000 on the incineration of waste (OJ L 332, December 28, 2000, p. 91-111).
Directive 2001/80/EC of the European Parliament...
Standards and norms
- Ambient air quality – standard method for measuring nitrogen dioxide and nitrogen monoxide concentration by chemiluminescence. - EN 14211 - (2005)
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