航天器中使用的绝缘体主要有三类: 1.泡沫:有机和无机；2.纤维绝缘:用于内部和外部绝缘以及高温环境3。多层绝缘（MLI）:辐射反射屏蔽层。 第7部分详细介绍了航天器用隔热材料的性能、热性能和应用领域。购买本文件时可获得的所有当前修订均包含在购买本文件中。

There are 3 main categories of insulators used in spacecrafts: 1. foams: organic and inorganic;2. fibrous insulations: for internal and external insulation and for high temperature environments3. multilayer insulations (MLI): layers of radiation reflecting shields. Properties, thermal behaviour and application areas of the insulation materials used in spacecrafts are detailed in this Part 7.All current amendments available at time of purchase are included with the purchase of this document.