Standards Development
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.
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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