Standards governing Prevention of Industrial Robots Hazards Article 6

Robots shall be able to hold the objects tightly and firmly upon the shut-down caused by situations of Article 4 or Item 3 of the preceding Article.
中文原文 工業用機器人危害預防標準第6條
機器人遇有第四條緊急停止或前條第三款狀況停止運轉時,其握持部應仍能繼續穩定握持其所握持之物件。

English translation for reference only; the Chinese text prevails. Not legal advice.