ISO 9239-1:2025

Reaction to fire tests for floorings — Part 1: Determination of the burning behaviour using a radiant heat source

Publication date:   Jun 25, 2025

General information

60.60   Standard published   Jun 25, 2025

ISO

ISO/TC 92/SC 1 Fire initiation and growth

International Standard

13.220.40   Ignitability and burning behaviour of materials and products | 97.150   Floor coverings

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Scope

This document specifies a method for assessing the wind-opposed burning behaviour and spread of flame of horizontally mounted floorings exposed to a heat flux radiant gradient in a test chamber, when ignited with pilot flames. Annex A gives details of assessing the smoke development, when required.
This method is applicable to all types of flooring, e.g. textile carpet, cork, wood, rubber and plastics coverings as well as coatings. Results obtained by this method reflect the reaction to fire performance of the flooring, including any substrate if used. Modifications of the backing, bonding to a substrate, underlay or other changes of the flooring can affect test results. It cannot be used alone to describe or appraise the fire hazard or fire risk of floorings under actual fire conditions.
Information on the precision of the test method is given in Annex B.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 9239-1:2010

NOW

PUBLISHED
ISO 9239-1:2025
60.60 Standard published
Jun 25, 2025