Norme internationale
ISO 6944-1:2024
Endiguement du feu — Éléments de construction — Partie 1: Conduits de ventilation
Numéro de référence
ISO 6944-1:2024
Edition 2
Norme internationale
ISO 6944-1:2024
Indisponible en français
Publiée (Edition 2, 2024)

ISO 6944-1:2024

ISO 6944-1:2024
CHF 151
Convertir les francs suisses (CHF) dans une autre devise


This document specifies a method for determining the fire resistance of vertical and horizontal ventilation ducts under standardized fire conditions. The test examines the behaviour of ducts exposed to fire from the outside (duct A) and fire inside the duct (duct B). This document is intended to be used in conjunction with ISO 834-1.

This document is not applicable to:

a)       ducts whose fire resistance depends on the fire resistance performance of a ceiling;

b)       ducts containing fire dampers at points where they pass through fire separations;

c)        doors of inspection openings, unless included in the duct to be tested;

d)       two-sided or three-sided ducts;

e)       the fixing of suspension devices to floors or walls;

f)         kitchen extract ducts (see ISO 6944-2).

NOTE            Annex A provides general guidance and gives background information.

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