Descriptors | Petroleum, Petroleum products, Liquids, Aliphatic hydrocarbons, Aromatic hydrocarbons, Sampling methods, Sampling equipment, Manually-operated devices, Water content determination, Contaminants, Classification systems, Test specimens, Position, Statistical methods of analysis, Vapours, Safety measures, Equipment safety, Accident prevention, Fire safety, Volatility, Electrostatics, Tanks (containers), Pipes |