The paper presents the concept of non metal materials outgassing characteristic time constant and discusses its use and significance.Test data and their analysis are provided in addition.

• 阐述了非金属材料空间出气凝结特征时间常数的概念，就时间常数的涵义做了辨析，并给出了几种非金属材料相应的实验测试数据和分析结论。