sec.360Exposure to carbon dioxide

### sec.360 Exposure to carbon dioxide Subject to subsection (2) , the ventilation officer for an underground mine must ensure a person is not exposed to an atmosphere at the mine containing a general body concentration of carbon dioxide exceeding 12,500ppm. A person may be exposed to an atmosphere containing a general body concentration of carbon dioxide of not more than 30,000ppm if— a continual personal monitoring method is used to calculate the time weighted average concentration of carbon dioxide to which the person is exposed; and the time weighted average concentration is not more than— if the person works not more that 8 hours a day and not more than 40 hours a week—12,500ppm, calculated on the basis of not more than 8 hours a day and not more than 40 hours a week; or if the person works more that 8 hours a day and more than 40 hours a week—12,500ppm, as adjusted having regard to a recognised standard for adjusting exposure limits for extended working hours. This section does not apply to a person who is wearing self-contained breathing apparatus in an emergency or for a mines rescue purpose. (sec.360-ssec.1) Subject to subsection (2) , the ventilation officer for an underground mine must ensure a person is not exposed to an atmosphere at the mine containing a general body concentration of carbon dioxide exceeding 12,500ppm. (sec.360-ssec.2) A person may be exposed to an atmosphere containing a general body concentration of carbon dioxide of not more than 30,000ppm if— a continual personal monitoring method is used to calculate the time weighted average concentration of carbon dioxide to which the person is exposed; and the time weighted average concentration is not more than— if the person works not more that 8 hours a day and not more than 40 hours a week—12,500ppm, calculated on the basis of not more than 8 hours a day and not more than 40 hours a week; or if the person works more that 8 hours a day and more than 40 hours a week—12,500ppm, as adjusted having regard to a recognised standard for adjusting exposure limits for extended working hours. (sec.360-ssec.3) This section does not apply to a person who is wearing self-contained breathing apparatus in an emergency or for a mines rescue purpose. - (a) a continual personal monitoring method is used to calculate the time weighted average concentration of carbon dioxide to which the person is exposed; and - (b) the time weighted average concentration is not more than— (i) if the person works not more that 8 hours a day and not more than 40 hours a week—12,500ppm, calculated on the basis of not more than 8 hours a day and not more than 40 hours a week; or (ii) if the person works more that 8 hours a day and more than 40 hours a week—12,500ppm, as adjusted having regard to a recognised standard for adjusting exposure limits for extended working hours. - (i) if the person works not more that 8 hours a day and not more than 40 hours a week—12,500ppm, calculated on the basis of not more than 8 hours a day and not more than 40 hours a week; or - (ii) if the person works more that 8 hours a day and more than 40 hours a week—12,500ppm, as adjusted having regard to a recognised standard for adjusting exposure limits for extended working hours. - (i) if the person works not more that 8 hours a day and not more than 40 hours a week—12,500ppm, calculated on the basis of not more than 8 hours a day and not more than 40 hours a week; or - (ii) if the person works more that 8 hours a day and more than 40 hours a week—12,500ppm, as adjusted having regard to a recognised standard for adjusting exposure limits for extended working hours.