Safety Standard of Machinery, Equipment and Tools Article 37

The stopping angle of the crankshaft for the pin clutch or the key clutch mechanical press shall be within 10 degrees but it is unrestricted for having a construction to prevent a body part intervening a hazard zone.The above mentioned stopping angle refers to the crank center angle formed by the set stop point and the actual stop point.
中文原文 機械設備器具安全標準第37條
置有滑動銷或滾動鍵之離合器之機械衝床,曲軸偏心軸之停止角度應在十度以內。
但具有不致使身體介入危險界限之構造者,不在此限。
前項停止角度,指由曲軸偏心軸之設定停止點與實際停止點所形成之曲軸中心角度。

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