BS EN 403:1993 Specification for filtering respiratory protective devices with hood for self-rescue from fire
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This European Standard specifies filtering devices with a hood for personal escape from particulate matter, carbon monoxide and other toxic gases produced by fire. It specifies minimum requirements for this device which is for single use. It does not cover devices designed for use in circumstances where there is or might be an oxygen deficiency (oxygen less than17% by volume). Two types of devices are specified; namely, those designed to be carried on the person and those designed to be stored. This standard specifies devices primarily designed for adult users. Some devices may not be suitable for children. Laboratory and practical performance tests are included for the assessment of compliance with the requirements.
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies.
EN 132, Respiratory protective devices; Definitions.
EN 136, Respiratory protective devices; Full face masks; Requirements, testing, marking.
EN 140, Respiratory protective devices; Half masks and quarter masks; Requirements, testing, marking.
EN 141, Respiratory protective devices; Gas filters and combined filters; Requirements, testing, marking.
EN 143, Respiratory protective devices; Particle filters; Requirements, testing, marking.
EN 146, Respiratory protective devices; Powered particle filtering devices incorporating helmets or hoods; Requirements, testing, marking.
EN 405, Respiratory protective devices; Valved filtering half masks against gases or gases and particles; Requirements, testing, marking.
For the purposes of this European Standard the definitions given in EN132 apply.
Description
A filtering device with a hood for self-rescue from fire (short: filtering smoke hood) is a respiratory protective device dependent on the ambient atmosphere. A complete device consists of a facepiece with combined filter and, if necessary, suitable packaging. It is not intended that any disassembly or assembly be carded out by the user. The facepiece of a filtering smoke hood can be the hood itself or a full face mask, half mask, quarter mask or mouthpiece assembly connected to the hood. The combined filter is attached to the facepiece and is not replaceable without tools.
