本SAE航空航天推荐规程（ARP）涵盖了用于制造航空航天仪器中的盖玻璃和照明楔的玻璃类型要求。它定义了物理缺陷的最大程度，并推荐了标准的检查和评估方法。本文件中使用的术语定义见2.2。

This SAE Aerospace Recommended Practice (ARP) covers the requirements for the types of glass to be utilized in the fabrication of cover glasses and lighting wedges used in aerospace instruments. It defines the maximum extent of physical defects and recommends standard methods of inspection and evaluation. Definitions of terminology used in this document are covered in 2.2.