British Standards Institution

Source:: ISO
Committee:: FSH/22 - Fire resistance tests
Categories:: Standardization. General rules | Health and Safety | Fire Protection | Fire-fighting | Ignitability and burning behaviour. Materials and products | Fire-resistance. Building materials and elements

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 loadings 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 loading 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.

Purpose

ISO 23693-1 provides general requirements for calibration, undertaking, measuring and report blast tests intended to determine the response of passive fire protection (PFP) to gas explosions. The response of the PFP is partly dependent of the nature of the substrate, hence the requirement for additional parts of the series specifying the additional procedures relevant to a range of substrate types.

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

Standard timeline

1. Proposal

Proposal start date:

03/08/2023

Proposal end date:

26/09/2023

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

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Standards Development

ISO/PWI 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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