1. The Storage and Handling of Petroleum Liquids;Hughes,1987
2. Recommendations for Cleaning and Pretreatment of Heavy Fuel Oil, Alfa Laval, London.
3. BS 3016 Specification for Pressure Regulators and Automatic Changeover Devices for Liquefied Petroleum Gases.
4. BS 4040 Specification for Leaded Petrol (Gasoline) for Motor Vehicles.
5. BS 4250 Part 1 Specification for Commercial Butane and Propane.