... subway, gymnasium,important government office,boarder,and seaport Liquid Scanner -- Model: ST1000* Identify chemical composition of ... , plastic, glass, porcelain, china, pottery.Identify dangerous liquid More than 30 types: Gasoline, kerosene, diesel oil ... , isopropanol, nitromethane, diethylamine , tris the trihalomethanes , ethylene glycol, xylene and other flammable, corrosive liquids Effective scan ...