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EN 405:2001+A1:2009

Respiratory protective devices - Valved filtering half masks to protect against gases or gases and particles - Requirements, testing, marking

Edition date: 2022-12-03
In Force
Summary: This European Standard specifies the performance requirements, test methods and marking requirements for valved filtering half masks incorporating either gas or combined filters as respiratory protective devices except for escape purposes. It does not cover gas filtering half masks which do not have valves or are fitted only with exhalation valves. It does not cover devices designed for use in circumstances where there is or might be an oxygen deficiency (oxygen less than a volume fraction of 17 %). Laboratory and practical performance tests are included for the assessment of compliance with the requirements.

La présente Norme Européenne spécifie les exigences de performance, les méthodes d’essais et les exigences de marquage applicables aux demi-masques filtrants pourvus de soupapes et de filtres antigaz ou de filtres combinés, utilisés comme appareils de protection respiratoire, sauf pour l’évacuation. Elle ne s’applique pas aux demi-masques filtrants antigaz dépourvus de soupapes ou uniquement pourvus de soupapes expiratoires. Elle ne s’applique pas non plus aux appareils conçus pour être utilisés dans des situations où il y a ou pourrait y avoir un défaut d’oxygène (teneur en oxygène inférieure à 17 % en volume). Elle contient des essais pratiques de performance et des essais de laboratoire pour s’assurer de la conformité avec les spécifications.
ICS: 13.340.30-Respiratory protective devices
CTN: CEN/TC 79 - 6062

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