本标准规定了透光屏和窗帘的安全和物理要求，旨在防止焊接过程中产生的有害辐射，同时提供与工作位置的视觉接触。

This Standard sets out the safety and physical requirements for light-transmitting screens and curtains intended to provide protection against hazardous radiation generated during welding processes, while simultaneously affording visual contact with the working position.