WAC 296-806-43002. Follow these safety requirements when using lead and lead casts

(1) You must provide thermostats for heating elements to prevent overheating. (2) You must provide a means of exhaust for fixed or permanent lead pot installations. (3) You must provide a covered container to store dross skimmings. (4) You must keep equipment clean, especially from accumulations of yellow lead oxide. Reference: 1. For requirements about, Personal protective equipment (PPE), see the Safety and health core rules, WAC 296-800-160 . 2. For ventilation requirements when using portable lead pot units, see the General occupational health standards, chapter 296-62 WAC.