ISO 23693-1被动防火材料抗气体爆炸性的测定
ISO 23693-1:2021 Determination of the resistance to gas explosions of passive fire protection materials — Part 1: General requirements
ISO 23693-1:2021 被动防火材料抗气体爆炸性的测定－第1部分：一般要求
ISO 23693-1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。南京睿督公司咨询电话：025-86583475
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.
ISO 23693-1标准评定要求
For the pressure transducers located to confirm the pressure-time history on the specimen:
a) A minimum of two pressure transducers shall function correctly during the test.
b) The average peak overpressure measured by the pressure transducers shall exceed the target peak pressure and none of the transducers shall record an overpressure less than 85 % of the target peak overpressure.
c) The average rise time measured by the pressure transducers shall fall within ±25 % of the required value.
d) The average impulse measured by the pressure transducers shall exceed the required peak impulse and none of the transducers shall record an impulse less than 85 % of the required peak impulse.
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