... , battery, ceramic, etc. Techinical specifications: Item Standard Content of lead tetroxide Pb3O4 , ≥ %97Content of lead dioxide PbO2 , ≥ %33.9Evaporation substance 105 , ≤ %0.2Remains ... ; preventing from dampness. NOTE:For being toxic chemicals, the red lead could only be exported after getting "Clearance Notification for Environment ...