本国际标准规定了适用于所有部件、设备和结构的试验条件，这些部件、设备和结构位于指定为“防火区”的区域内，且其建造应满足最低规定的耐火等级。 部件、设备和结构的耐火等级分为两级。 附件A和B详细说明了提供标准火焰的燃烧器类型以及使用方法。 本国际标准不涉及指定防火区外的耐火性，也不涉及可燃性要求，也不涉及燃烧室火焰引起的条件。

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.