British Standards Institution

Source:: ISO
Committee:: FSH/22/-/14 - High Intensity Fires
Categories:: Fire-resistance. Building materials and elements
Comment period start date:: 22/05/2025
Comment period end date:: 19/07/2025
Number of comments:: 0

Comment by:

19th Jul

Scope

ISO 23693 part 1 aims to simulate the mechanical loads that could be imparted to passive fire protection (PFP) materials and systems by explosions resulting from releases of flammable gas, pressurised liquefied gas, flashing liquid fuels, or dust that may precede a fire. Explosions can give rise to pressure and drag forces and damage to PFP materials in a gas explosion can be caused by the direct effects of pressure and drag loads and by the deflection of the substrate supporting the PFP material. This part of the ISO 23693 series deals with tests to assess the performance of PFP material to the combined effects of pressure and drag loads that occur in the flow path of a gas explosion. This part of the standard excludes specimens whereby the substrate is subject to plastic deformation or brittle failure.

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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:

16/12/2024

3. Public Comments

Public Comments start date:

22/05/2025

Public Comments end date:

19/07/2025

Learn more about the standards development process

Standards Development

BS ISO 23693-3 ISO 23693-3 Determination of the resistance to gas explosions of passive fire protection materials. Part 3: Tubular and I-section substrates subject to elastic deformation only

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