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The Monitoring of Sealed Areas

Recognised Standard 09

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Monitoring of sealed areas should be carried out in order to adequately predict and define the potential for an explosive atmosphere to occur within a sealed area. Sufficient samples should be taken to delineate both the size of any explosive zone and the time that the zone will be within the explosive range.

In addition, monitoring is to be carried out to identify any occurrence of spontaneous combustion within the sealed area, as a potential ignition source of possible explosive gas mixtures.

Gas monitoring protocols relating to sealed areas are to be integrated into the existing mine gas monitoring system and to include suitable alarm levels which have been established. The gas monitoring system must be maintained in accordance AS2290.3.


Department of Natural Resources and Mines

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Relates to Queensland (QLD)

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PDF Document

Queensland (QLD)


Department of Mines and Energy, Queensland Government


Queensland Government


5 Nov 2009

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