Elements and Performance Criteria

RANGE STATEMENT
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
OH&S information
National Occupational Health and Safety Commission guidelines
Organisational OH&S practices and procedures manuals
Australian/New Zealand and ISO standards
Company risk management policy
Codes of practice
Australian dangerous goods legislation
Trade practices
Occupational Health and Safety reporting requirements
Weld procedures
Work related safety information
Standard operating procedures
Material safety data sheets (MSDSs)
Job sheets
Emergency procedures
Safety standards and procedures
Pollutants
Nitrogen oxides
Ozone
Metal fumes etc.
Lead oxide
Silicon oxide
Calcium fluoride
Calcium oxide
Magnesium oxide
Sodium oxide
Potassium oxides
Carbon dioxide
Organics
Iron
Manganese
Calcium carbonate
Zirconium oxide
Titanium oxide
Hexavalent chromium
Occupational diseases and injuries
Eye injuries
Skin damage
Respiratory irritations
Chronic effects
Allergies
Factors
Gas leakage from cylinders
Type of consumable and metals used
Type of welding processes
Type of electrodes
Welding current
Voltage and amperage
Ventilation
Contamination
Interaction of chemicals
Exposure levels
Flammability
Exposure levels
Time Weighted Average
Short Term Exposure Limit (STEL)
Maximum Allowable Concentration (MAC) or Threshold Limit Value - Ceiling (TLV-C)
Skin Notation
Specific metals
Aluminium
Antimony
Arsenic
Beryllium
Boron
Cadmium
Chromium
Copper
Cobalt
Iron
Lead
Lithium
Magnesium
Manganese
Mercury
Molybdenum
Nickel
Platinum
Selenium
Silver
Thorium
Tin
Titanium
Tungsten
Vanadium
Zinc
Zirconium
Gases
Acetylene
Argon
Carbon dioxide
Carbon monoxide
Helium
Nitrogen oxides
Ozone
Phosgene
Phosphine
Stibine
Other hazards
Fluxes
Electro-magnetic radiation
Electric shock
Sparks
Spatter
Contaminated and coated metals
Gas cylinder and electrical hazards
Confined spaces
Noise
Chemical exposure
Solvents
Musculoskeletal, back and overuse injuries
Vibration
Dusts
Heat stress
Ultraviolet radiation
Airborne pollutants
Flammable gases
Infrared radiation
Thermal damage
Manual handling techniques
Housekeeping practices
Lifting weight limits
Appropriate storage
Use of lifting devices
Appropriate training
Hazardous materials storage standards and procedures
Personal protective equipment
Respirators
Ear muffs
Protective clothing
Gloves
Boots
Helmets
Eye protection
Face shields
Procedures to control hazards
Substituting hazardous materials with safer materials
Changing workplace design to eliminate hazards
Modifying work practices to reduce exposure
Using personal protective equipment
Using adequate and appropriate ventilation
Workplace safety measures
Shielding requirements
Ventilation
General and diluted
Local exhaustion
Use of personal protective equipment
Checking equipment condition
Equipment maintenance
Correct operation of equipment
Correct voltage and electrical connections
Good posture
Fire safety, plant and equipment isolation
Communications with appropriate personnel

EVIDENCE GUIDE
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
A person who demonstrates competency in this unit must be able to apply safe welding practices.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.
Context of and specific resources for assessment
This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.
This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with applying safe welding practices or other units requiring the exercise of the skills and knowledge covered by this unit.
Method of assessment
Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.
Guidance information for assessment