(2) Precautions shall be taken to prevent spillage of molten material from a ladle, slag pot or similar vessel where such spillage may endanger a worker. R.R.O. 1990, Reg. 854, s. 96 (2). (3) A ladle, slag pot or similar vessel shall be examined immediately before use and, if found to be defective or contaminated by a substance which may cause an explosion, shall not beCustom for molten material.