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Santos Module 49 - Gas Detection - 3 year refresher

4 Hours

Max Students:

Designed for:
This unit is part of the Santos global, field/plant series. Units in this series cover practical, hands-on skills and knowledge applicable to work in the field/plant environment; they are not specific to operations or maintenance.



Pre-entry Requirements:

  • This unit requires the ability to read and interpret a meter and then communicate the conclusions.
  • Writing is required to the level of completing required workplace reports/forms.
  • Numeracy read the instrument and interpret the results as being safe/not safe and so determine the required actions.

This unit addresses gas detection and monitoring procedures at Santos sites.


As may be relevant to the plant/site/process, knowledge of the following may be required:

  • Common chemical asphyxiants, including hydrocarbons, carbon dioxide, carbon monoxide, hydrogen cyanide, and hydrogen sulphide
  • Common irritants and corrosives, including chlorine, ammonia and acid bases
  • Common flammable gases, including acetylene, petroleum, methane, ethane, propane and butane narcotics (explosive range, upper and lower explosive limits)
  • Exposure standards (time weighted average, short term exposure limits, peak limitation values, examination of toxic effect at the level of a range of flammable gases)
  • Conditions under which atmospheres become hazardous
  • Units of measurement used to express concentration of atmospheric contaminants (mg/cubic m. ppm, % v/v).
  • Underpinning skills could include interpretation and communication of results of sampling

Unit of Competency

MSMWHS217 Gas test atmospheres

Assessment of this course is through theory assessment, completion of the Santos Learners resource and observation of students carrying out a range of practical activities involving the use of an approved Santos gas detector.

Delivery Method:
Classroom theory via PowerPoint and the issued learner resource including practical activities involving the use of a gas detector.

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