This part informs about the physical and chemical properties and hazards of potassium hydroxide (solid, solution), and stipulates emergency measures in the event of potassium hydroxide (solid, solution) leakage, methods of handling the leakage site, and disposal methods at the leakage site. This section is used for the treatment and disposal of potassium hydroxide (solid, solution) leakage during production, storage, use, operation and transportation.