6. Standardization and certification

6.1 Electrical certification

When a gas detector (flammable, oxygen or toxic) is intended for use in a potentially explosive atmosphere (ATEX), it is subject to the general construction rules for electrical equipment operating in ATEX in accordance with Directive 2014/34/EU, transposed into French law by Decree no. 2015-799 of 1 ^er July 2015.

For equipment intended for use in the surface industry (Group II equipment), Directive 2014/34/EU defines 3 categories according to the level of protection which are linked to the possible area of use:

normal protection level: category 3 for use in zone 2 only ;
high level of protection: category...

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Standardization and certification

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Conclusion

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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Standards and norms

Electrical oxygen detection and measurement devices – Fitness-for-purpose requirements and test methods. - NF EN 50104 - 2019
Electrical equipment for the detection of flammable gases in domestic premises – Part 1: Test methods and suitability requirements - NF EN 50194-1 - 2023
Electrical equipment for combustible gas detection in domestic premises – Part 2: Electrical equipment for continuous operation...

Regulations

ATEX Directive 2014/34/EU 2014 Applies in the same way as Directive 94/9/EC to equipment and protective systems intended for use in potentially explosive atmospheres.

Directive 98/24/EC 1998 Concerning the protection of the health and safety of workers from the risks related to chemical agents at work (14th individual Directive within the meaning of Article 16(1) of Directive 89/391/EEC)

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