航空器 机载设备的环境试验程序 指定防火区的防火

[中文适用范围]： 本国际标准规定了适用于位于指定为“火区”并满足最低规定耐火水平的所有部件、设备和结构的测试条件。 部件、设备和结构适用两种耐火等级。 附件 A 和 B 详细介绍了提供标准火焰的燃烧器类型及其使用方法。 本国际标准不涉及指定火区之外的耐火性，也不涉及可燃性要求，也不涉及由来自燃烧室的火焰引起的条件。 [外文原描述]： This International Standard specifies the tests conditions applied to all components, equipments and structures located in zones designated as "fire zones" and built to satisfy the minimum specified level for resistance to fire. Two grades of resistance to fire are applicable to components, equipments and structures. Annexes A and B give details of the types of burners providing the standard flame and how they shall be used. This International Standard does not relate to the resistance to fire outside designated fire zones, nor to flammability requirements, nor to those conditions induced by the flame coming from the combustion chamber.