本文件旨在模拟火灾前可能释放的易燃气体、加压液化气体或闪蒸液体燃料引起的爆炸可能会给被动防火（PFP）材料和系统带来的机械载荷。本文件也适用于粉尘爆炸。气体爆炸会产生压力和阻力。在气体爆炸中，PFP材料的损坏可能由压力和阻力载荷的直接影响以及支撑PFP材料的基板的偏转引起。ISO？23693系列的其他部分将涉及一系列常见类型的试样，这些试样可根据产生的机械载荷进行测试。

This document 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 or flashing liquid fuels that may precede a fire. This document can also be applicable to dust explosions. Gas explosions can give rise to pressure and drag forces. 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. Other parts of the ISO 23693 series will deal with a range of common types of specimen that could be tested against the mechanical loads generated.