| http://www.w3.org/ns/prov#value | - It includes liquids such as petrol, gasoline, motor spirit, twostroke, aviation fuel, used (waste) oil, heating oil, kerosene and diesel, but not LPG.21 Guidelines for Implementing the POEO (Underground Petroleum Storage Systems) Regulation 2008Since then, CP4 has been revised and incorporated into AS4897­2008: Design, installation and operation of underground petroleum storage systems (AS 200
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