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Herefordshire Training Services

Health and Safety

Confined Spaces Atmosphere Testing

Assessment type

Training only (attendance)

Minimum duration

25 Minutes

Course delivery



This training course aims to give trainees knowledge and understanding in confined spaces atmosphere testing and allows trainees to view realistic scenes and be tested on their knowledge retention. 80% of all confined space fatalities are a result of hazardous atmospheres. Many of these fatalities occur because gas detectors were not used to test the atmosphere or if used hazards were missed or underestimated. WARNING: This eLearning course contains graphic re-enactments of accidents that may offend some viewers.


  • Atmosphere Testing
  • Oxygen Levels
  • Flammability
  • Toxicity
  • Common Testing Problems
  • Testing Procedures

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