1. Definitions
The definitions given below have been drawn up by an international commission (source: IEC Electropedia, also known as IEV online) or defined in international (IEC) and European (EN) standards for the evaluation of flammable, oxygen and toxic gas detectors. Additional information is provided in the form of comments.
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Explosive gas atmosphere
Mixture of flammable substances in gas or vapor form with air, which, under atmospheric conditions and after ignition, allows self-sustained propagation.
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Lower explosive limit, LEL
Concentration of flammable gases and vapors in air, below which an explosive gaseous atmosphere will not form.
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Upper explosive limit, UEL
Concentration of flammable gases, vapors...
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Definitions
Detection principles
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Bibliography
- (1) - DRÄGER - Livre de poche Tubes Réactifs Dräger & MicroTubes - (2022). PDF disponible en ligne https://www.draeger.com/Content/Documents/Products/tubes-hb-9092086-fr.pdf ...
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