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Elements and Performance Criteria

1. Prepare for gas testing
   • Find out type of gas/atmosphere to be tested
   • Select and calibrate equipment in accordance with procedures
   • Find out gas testing regime/sampling pattern required
   • Identify hazards from possible atmosphere contaminants
   • Implement hazard control measures and use of appropriate personal protective equipment (PPE)

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.
Regulatory framework	The latest version of all legislation, regulations, industry codes of practice and Australian/international standards, or the version specified by the local regulatory authority, must be used, and include one or more of the following: legislative requirements, including work health and safety (WHS) industry codes of practice and guidelines environmental regulations and guidelines Australian and other standards licence and certification requirements AS 2865-2009 Confined spaces AS 1674.1-1997 Welding and allied processes - Fire precautions
Procedures	All operations must be performed in accordance with relevant procedures. Procedures are written, verbal, visual, computer-based or in some other form, and include one or more of the following: emergency procedures work instructions standard operating procedures (SOPs) safe work method statements (SWMS) formulas/recipes batch sheets temporary instructions any similar instructions provided for the smooth running of the plant
Tools and equipment	Tools and equipment include one or more of the following: portable instruments sampling tubes and pumps oxygen level meter combustible gas detectors other hazardous gas meters PPE
Routine problems	Routine problems must be resolved by applying known solutions. Routine problems include one or more of the following: changes in readings unexpected readings faults in equipment Known solutions include one or more of the following: procedures training remembered experience Non-routine problems must be reported according to according to relevant procedures.
Hazards	Hazards include one or more of the following: smoke, darkness and heat heat, smoke, dust or other atmospheric hazards electricity gas gases and liquids under pressure structural hazards structural collapse equipment failures industrial (machinery, equipment and product) equipment or product mass noise, rotational equipment or vibration limited head spaces or overhangs working at heights, in restricted or confined spaces, or in environments subjected to heat, noise, dusts or vapours fire and explosion flammability and explosivity hazardous products and materials unauthorised personnel sharp edges, protrusions or obstructions slippery surfaces, spills or leaks limited head spaces or overhangs extreme weather other hazards that might arise

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Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and must include the ability to:

recognise and assess conditions that require testing

identify the appropriate action according to procedures and within scope of responsibility, including:

selecting, preparing and using gas testing equipment

applying testing regime

selecting and using personal protective equipment (PPE)

identifying hazards and applying control measures

cleaning and maintaining equipment

take readings and interpret, report/record relevant data

apply known solutions to routine problems

communicate clearly and unambiguously with a range of personnel on safety conditions and procedures.

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Knowledge Evidence

Evidence must be provided that demonstrates knowledge of:

organisational procedures, including:

work permit systems

safety, hazards and hazard control

incident, fire and accident

PPE

organisation standard operating procedures (SOPs)

common atmospheric hazards and contaminants

explosive range, upper and lower explosive limits

exposure standards (time-weighted average, short-term exposure limits, peak limitation values, and 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).

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