Odorant is required to be added to fuel gas under the Petroleum and Gas (Production and Safety) Act 2004. This ensures the
presence of gas is readily detectable by untrained persons, without the use of gas detectors.
Prescribed concentrations of odorant are added to provide a distinctive and unpleasant odour, so that the presence of gas in air at
concentrations below the Lower Explosive Limit (LEL) is readily detectable. Adding the odorant does change the physical or chemical property
of the fuel gas.
Where unodourised gas is present, there is an elevated level of risk, and alternative or additional controls may be required. This level of
risk is further elevated where people are required to access confined spaces or ‘enclosed’ industrial equipment supplied with unodourised
gas.
Industrial situations where equipment is situated in a plant room or a building
Gas devices (including gas fired engines) using unodourised, contained in enclosures (such as those located on remote sites throughout Queensland, used for driving gas compression systems or power generation plant)