ISO/TR 21891:2017将绝缘和/或机械/环境保护套管和热收缩模制形状的标准汇总在一份清单中，这些标准已被确定为适用于飞机。袖子的范围包括热收缩、挤压（非热收缩）和织物。

ISO/TR 21891:2017 brings together, in a single list, those standards for insulation and/or mechanical/environmental protection sleeves and heat shrink moulded shapes that have been determined as being suitable for use on aircraft. The range of sleeves includes heat shrink, extruded (non-heat shrink) and textile.