British Standards Institution

Source:: ISO
Committee:: FSH/22/-/5 - Fire resistance tests for doors
Categories:: Fire-resistance. Building materials and elements | Fire protection equipment
Comment period start date:: 19/05/2025
Comment period end date:: 12/07/2025
Number of comments:: 0

Comment by:

12th Jul

Scope

The test described determines the rate of leakage of ambient (cold) and medium (warm) temperature smoke from one side of door and shutter assemblies to the other under the specified test conditions. This test method is applicable to door and shutter assemblies and self-closing operable glazed elements of different configurations intended for the purpose of controlling the passage of smoke in case of fire. Wherever door and shutter assemblies are referred to in this document, it also applies to self-closing glazed elements. The fire resistance of glazed elements is determined by tests in compliance with ISO 3009.

The acceptable leakage rates for different situations are not addressed in this part of ISO 5925, but rather are specified by the regulations of the controlling authorities.

Annex A includes a brief explanation of the test, Annex B describers the test apparatus and Annex C provides guidance on the use of the test data.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

07/03/2025

3. Public Comments

Public Comments start date:

19/05/2025

Public Comments end date:

12/07/2025

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Standards Development

BS ISO 5925-1 ISO 5925 Smoke control door, shutter assemblies and self-closing glazed elements. Ambient- and medium-temperature leakage tests

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