SAQA All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.
SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Remove metals using air-carbon arc gouging processes 
SAQA US ID UNIT STANDARD TITLE
12814  Remove metals using air-carbon arc gouging processes 
ORIGINATOR
SGB Manufacturing and Assembly Processes 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Manufacturing and Assembly 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 3  NQF Level 03 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Reregistered  2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
This unit standard is for a learner within the fabrication and welding fields.

A person credited with this unit standard is capable of:
  • Describe and assemble the air-carbon arc gouging equipment
  • Select, assemble and conduct pre operational checks on air-carbon arc gouging equipment
  • Gouge workpieces
  • Inspect gouged work pieces
  • Care and store gouging consumables and equipment

    This unit standard will contribute to the full development of any learner by providing recognition, further mobility and transportability within the field. The knowledge, skills and understanding demonstrated in this unit standard are essential for social and economic transformation and upliftment within the fabrication and welding environment. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    National Certificate in Welding Application and Practice NQF level 2. 

    UNIT STANDARD RANGE 
    Scope:

    Range of materials used is:
  • Low and medium carbon steel (over 6mm thick)


    Context:
  • All work undertaken must comply with Occupational Health and Safety Act
  • All work done must comply with worksite practices
  • All work done under limited supervision


    Level:

    Level (for level 3)
    A learning programme leading to the award of this unit standard should develop learners who demonstrate:
    (a) A range of well-developed skills
    (b) An ability to offer a significant choice of procedures
    (c) Some relevant theoretical knowledge
    (d) An ability to interpret available information
    (e) An ability to respond to familiar problems
    (f) An ability to function with significant responsibility 

  • Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Describe and assemble the air-carbon arc gouging equipment. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. The importance of correct assembly of the air-carbon arc gouging equipment, and the consequences of incorrect assembly, is explained with reference to the manufacture's requirements. 

    ASSESSMENT CRITERION 2 
    2. Basic and major components of the air-carbon arc gouging equipment are identified and the explanation of function and purpose is correct in terms of manufacture's requirements and standards. 

    ASSESSMENT CRITERION 3 
    3. Parts and components correctly identified and the implications for incorrect identification explained. 

    ASSESSMENT CRITERION 4 
    4. Terms and definitions used are consistent with generally accepted gouging terminology as recorded in gouging standards. 
    ASSESSMENT CRITERION RANGE 
  • Parts include: Hoses, hose clamps, air supply cylinder, gauges, gouging electrode holder, non-return valves.
  • Power source requirements: DC/AC current supply
     

  • SPECIFIC OUTCOME 2 
    Select, assemble and conduct pre operational checks on air-carbon arc gouging equipment. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Verification, identification and selection of air-carbon arc gouging equipment as specified per job requirements. 

    ASSESSMENT CRITERION 2 
    2. Unsafe and defective equipment is identified and reported. 

    ASSESSMENT CRITERION 3 
    3. Identification and rectification of hazards relate to gouging process in accordance with standard work site practices. 

    ASSESSMENT CRITERION 4 
    4. Pre operational checks are carried out in accordance with manufacture's specifications. 
    ASSESSMENT CRITERION RANGE 
    Resources to include: manufacture's operational and specifications manual, worksite practices and safety and environmental issues. (Personal protective equipment)
     

    SPECIFIC OUTCOME 3 
    Gouge workpieces. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Safety precaution adhered to during gouging process. 

    ASSESSMENT CRITERION 2 
    2. Workpiece cleaned after gouging as per worksite practices. 

    ASSESSMENT CRITERION 3 
    3. Gouging parameters and air pressure settings are established to job requirements and manufacturer's specifications. 

    ASSESSMENT CRITERION 4 
    4. Metal removed by gouging to suit job requirements. 

    ASSESSMENT CRITERION 5 
    5. Work piece cleaned to remove all contaminated surfaces. 
    ASSESSMENT CRITERION RANGE 
  • Heat input, metal transfer mode, gouging technique, and consumable handling.
  • Material type to be gouged: Low and medium carbon steels over 6mm thick
  • Resources include: gouging equipment, tools, protective clothing and equipment, gouging instruction sheet
     

  • SPECIFIC OUTCOME 4 
    Inspect gouged work pieces. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Gouged workpiece conform to specifications as reflected on drawing. 

    ASSESSMENT CRITERION 2 
    2. Inspection methods and procedures selected is conducive to job requirements. 
    ASSESSMENT CRITERION RANGE 
    Defects removal determined visually
    Or
    with the aid of dye penetrant inspection method when required.
     

    ASSESSMENT CRITERION 3 
    3. Excess material/defects removed. 

    ASSESSMENT CRITERION 4 
    4. Documentation completed as reflected in worksite practices. 
    ASSESSMENT CRITERION RANGE 
    Procedures include: Worksite practices, inspection methods visual only, and cleaning procedures
     

    SPECIFIC OUTCOME 5 
    Care and store gouging consumables and equipment. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Tools and equipment care for as per worksite practices. 

    ASSESSMENT CRITERION 2 
    2. Tools and equipment stored to conform to worksite practices and procedures. 

    ASSESSMENT CRITERION 3 
    3. Gouging consumables stored in accordance with worksite practices and procedures. 
    ASSESSMENT CRITERION RANGE 
    Tools and equipment cared for is limited to defect reporting and stored in a usable condition for next user
     


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
    Anyone assessing a learner against this unit standard, must be registered as an assessor with the relevant ETQA.

    Any institution offering learning that will enable achievement of this unit standard must be accredited in terms of the criteria laid down by the relevant ETQA.

    Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines in the relevant qualification and the agreed ETQA procedures. 

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Names & functions of:
  • Types of electrodes
  • Types of nozzles
  • Equipment
  • Personal protective equipment

    Attributes, descriptions, characteristics & properties:
  • Types of metals
  • Features of oxy-fuel gas and air-carbon arc
  • Gouging defects and their causes
  • Gouging parameters
  • Consumables
  • Hazards
  • Different sizes and types of electrodes

    Sensory cues
  • Sound of escaping gas indicating leaks
  • Smell indicating gas leaks
  • Smell indicating overheating equipment

    Purpose of:
  • Specific worksite safety practices
  • Use and care of appropriate personal protective equipment
  • Pressure regulators
  • Maintenance of nozzles
  • Quality control measures
  • Safety checks
  • Preparation of materials
  • Selection of appropriate consumables

    Processes, events, causes and effects, implications:
  • Causes of hazards
  • Implications of ignoring gouging defects
  • Implications of unsafe work practices
  • Implications of not preparing workpiece before gouging
  • Effect on gouge quality of incorrect gouging parameters

    Procedures and techniques
  • Set up procedures for gouging equipment
  • Methods of safe and efficient positioning and support
  • Safety procedures
  • Quality procedures
  • Recording and reporting procedures

    Regulations, legislation, agreements, policies, standards
  • Company quality standards
  • Applicable safety, health and environmental protection legislation and standards

    Theory: rules, principles, laws
  • Basic principles of oxy-fuel gas and air carbon arc processes
  • Safety rules

    Relationships, systems:
  • Relationship of oxy-fuel and air-carbon arc processes to gouging of materials 


  • Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems:
  • Recognise problems while gouging metals and respond appropriately
  • Recognise and correct defects 

  • UNIT STANDARD CCFO WORKING 
    Work together with others:
  • Contribute to workgroup efforts 

  • UNIT STANDARD CCFO ORGANISING 
    Organise and manage myself and my activities:
  • Plan sequence of operations based on job instructions and set up equipment appropriately 

  • UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information:
  • Visual examination of gouges for defects 

  • UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively:
  • Record information on outcome of work and provide feedback to appropriate personnel 

  • UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically:
  • Understanding of oxy-fuel and air-carbon arc processes 

  • UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems:
  • Relationship between gouging electrode and depth of gouge 

  • UNIT STANDARD ASSESSOR CRITERIA 
    Assessors should keep the following general principles in mind when designing and conducting assessments against this unit standard:
  • Focus the assessment activities on gathering evidence in terms of the main outcome expressed in the title to ensure assessment is integrated rather than fragmented. Remember we want to declare the person competent in terms of the title. Where assessment at title level is unmanageable, then focus assessment around each specific outcome, or groups of specific outcomes.
  • Make sure evidence is gathered across the entire range, wherever it applies. Assessment activities should be as close to the real performance as possible, and where simulations or role-plays are used, there should be supporting evidence to show the candidate is able to perform in the real situation.
  • Do not focus the assessment activities on each assessment criterion. Rather make sure the assessment activities focus on outcomes and are sufficient to enable evidence to be gathered around all the assessment criteria.
  • The assessment criteria provide the specifications against which assessment judgements should be made. In most cases, knowledge can be inferred from the quality of the performances, but in other cases, knowledge and understanding will have to be tested through questioning techniques. Where this is required, there will be assessment criteria to specify the standard required.
  • The task of the assessor is to gather sufficient evidence, of the prescribed type and quality, as specified in this unit standard, that the candidate can achieve the outcomes again and again and again. This means assessors will have to judge how many repeat performances are required before they believe the performance is reproducible.
  • All assessments should be conducted in line with the following well documented principles of assessment: appropriateness, fairness, manageability, integration into work or learning, validity, direct, authentic, sufficient, systematic, open and consistent 

  • REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    This unit standard may be obtained through RPL. The learner should be thoroughly briefed on the mechanism to be used and support and guidance should be provided. Care should be taken that the mechanism used provides the learner with an opportunity to demonstrate competence and is not so onerous as to prevent learners from taking up the RPL option towards gaining a qualification. 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  58721   Further Education and Training Certificate: Engineering Fabrication  Level 4  NQF Level 04  Reregistered  2021-06-30  As per Learning Programmes recorded against this Qual 
    Elective  59731   Further Education and Training Certificate: Mechanical Handling (Rigging)  Level 4  NQF Level 04  Reregistered  2021-06-30  As per Learning Programmes recorded against this Qual 
    Elective  22871   National Certificate: Engineering Fabrication (light or heavy)  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered" 
    2007-08-16  MERSETA 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    1. Africa International Training Facilities T/A AITF (BREDELL) (TP) 
    2. ArcelorMittal South Africa Ltd (VANDERBIJLPARK) (TP) 
    3. Bevline Mechanical Projects (Pty) Ltd (PROSPECTON) (TP) 
    4. Blue Horison Properties 53 (Pty) Ltd T/A Durnacol Skills Innovation Hu 
    5. Coastal Kzn F.E.T. College - Swinton Road Campus 
    6. Eastcape Training Centre 
    7. False Bay Public FET College - Westlake Campus 
    8. Gijima AST Holdings (Pty) Ltd T/A Fundi Training Centre (BENONI) (TP) 
    9. Jericho Safety Consultants (Pty) Ltd (TP) 
    10. Majuba FET College - Newcastle Technology Centre 
    11. Matimba Rigging & Training (SECUNDA) (TP) 
    12. Mopani South East FET College - Phalaborwa Campus 
    13. Northlink College - Bellville Campus 
    14. SEDIBENG TRAINING CENTRE 
    15. SSS Sheet Metal Work cc T/A Sheetech SA (DURBAN) (TP) 
    16. Steinmuller Africa (Pty) Ltd T/A Steinmuller Technical Training Academ 
    17. THE SAJ COMPETENCY TRAINING INSTITUTE CC 
    18. Umfolozi FET College - Central Office 
    19. West Coast Public FET College - Vredenburg Campus 
    20. Wilbat Projects 148 (Pty) Ltd (ISIPINGO) (TP) 
    21. World Focus 382 cc T/A Richards Bay Technical Training & Assessment Centre (ZCBF) (RICHARDS BAY) (TP) 



    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.