Mining and Quarrying Safety and Health Regulation 2017
sec.144Oxygen
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sec.144 Oxygen
The site senior executive for a mine must ensure a person is not exposed to— an atmosphere in a confined space on the surface of the mine that has— an oxygen content of less than 19.5% by volume; or an oxygen content of more than 23.5% by volume; or an atmosphere in any other part of the mine that has an oxygen content of less than 18% by volume. In this section— confined space means a confined space as defined in AS 2865 ‘Confined Spaces’. s 144 amd 2019 SL No. 140 s 21 sch 1 (sec.144-ssec.1) The site senior executive for a mine must ensure a person is not exposed to— an atmosphere in a confined space on the surface of the mine that has— an oxygen content of less than 19.5% by volume; or an oxygen content of more than 23.5% by volume; or an atmosphere in any other part of the mine that has an oxygen content of less than 18% by volume. (sec.144-ssec.2) In this section— confined space means a confined space as defined in AS 2865 ‘Confined Spaces’.
- (a) an atmosphere in a confined space on the surface of the mine that has— (i) an oxygen content of less than 19.5% by volume; or (ii) an oxygen content of more than 23.5% by volume; or
- (i) an oxygen content of less than 19.5% by volume; or
- (ii) an oxygen content of more than 23.5% by volume; or
- (b) an atmosphere in any other part of the mine that has an oxygen content of less than 18% by volume.
- (i) an oxygen content of less than 19.5% by volume; or
- (ii) an oxygen content of more than 23.5% by volume; or