(2) Workers should operate according to training and demonstration methods, and use personal protective equipment correctly to ensure their health and safety.
(3) When working in narrow spaces such as inspection wells, cabins, reaction kettles, etc., it is necessary to determine whether there are toxic substances in them, wear effective breathing apparatus before entering the operation, and have a guardian at the same time. Prevent hydrogen sulfide, carbon monoxide and other toxic poisoning.
(4) If you find any unexpected situation, you should immediately call for help or report to the management, and you can't blindly rescue without effective protection.