3.6 According to the actual requirement, you need to wear rubber gloves, masks, protective glasses. Strong acid and alkali is volatile. During moving, the taste stimulation is very big to the human body. Especially the stimulation to the respiratory tract and nasal mucosa, it would make the person feel disgust .
3.7 Alkali harmed by skin penetration. Acid spread the surface of the skin, and cuticular layer lower permeability. It harms human body seriously. During the operation, labor protection measures shall be adopted well.