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: 

De-sliming material by means of a screen 
SAQA US ID UNIT STANDARD TITLE
11652  De-sliming material by means of a screen 
ORIGINATOR
SGB Mining and Minerals 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Fabrication and Extraction 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 2  NQF Level 02 
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 will be useful to people who are responsible for de-sliming material by means of a screen.

People credited with this unit standard are able to
  • demonstrate knowledge relating to the de-sliming of material;
  • prepare to de-slime material;
  • de-slime material; and
  • complete the duties pertaining to the de-sliming process. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    The credit calculation is based on the assumption that learners are already competent in terms of the following outcomes or areas of learning when starting to learn towards this unit standard:
  • Literacy and numeracy at ABET 4 or equivalent
  • Competency in the safe handling of applicable hazardous substances
  • Competency in the use of applicable tools and equipment
  • Competency in the operation of centrifugal pumps
  • Competency in the operation of valves
  • Basic slinging and rigging techniques. 

  • UNIT STANDARD RANGE 
    Specific range statements are provided in the body of the unit standard where they apply to particular specific outcomes or assessment criteria. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Demonstrate knowledge relating to the de-sliming of material. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. The legal and specified requirements pertaining to a safe, healthy work environment in the de-sliming process and the consequences of not adhering to the above are explained. 

    ASSESSMENT CRITERION 2 
    2. The importance of de-sliming material in terms of achieving specified production requirements and up-and down stream operational requirements is explained. 

    ASSESSMENT CRITERION 3 
    3. Hazards and associated risks, pertaining to the de-sliming process, identified through specified risk assessment procedures, and the actions to be taken should they be encountered are explained. 

    ASSESSMENT CRITERION 4 
    4. The principal components of the de-sliming process are identified and their functions explained. 
    ASSESSMENT CRITERION RANGE 
  • De-sliming screen components
  • Auxiliary systems
  • Safety devices
  • Interlock systems
     

  • ASSESSMENT CRITERION 5 
    5. Specified lock-out procedures pertaining to the de-sliming system and the consequences of non-compliance are explained. 

    ASSESSMENT CRITERION 6 
    6. The specified communication requirements pertaining to the de-sliming process and the consequences of non-compliance are explained. 

    ASSESSMENT CRITERION 7 
    7. The specified operating parameters and control methods and the consequences of not adhering to these are explained. 

    ASSESSMENT CRITERION 8 
    8. The specified factors affecting the optimum performance of the de-sliming process are explained. 

    ASSESSMENT CRITERION 9 
    9. The specified actions to be taken, should sub-standard conditions and problems be encountered, are explained. 

    ASSESSMENT CRITERION 10 
    10. The specified security requirements pertaining to the de-sliming process are explained. 

    SPECIFIC OUTCOME 2 
    Prepare to de-slime material. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Personal protective and safety equipment is verified, examined and used in accordance with specified requirements. 

    ASSESSMENT CRITERION 2 
    2. Tools and equipment are verified and examined in accordance with specified requirements. 

    ASSESSMENT CRITERION 3 
    3. Workplace hazards and associated risks are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 4 
    4. The de-sliming system is examined and substandard conditions are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 5 
    5. Safety and health precautions towards self and others are maintained in accordance with specified requirements. 

    SPECIFIC OUTCOME 3 
    De-slime material. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Personal protective and safety equipment is used in accordance with specified requirements. 

    ASSESSMENT CRITERION 2 
    2. The start-up of the de-sliming process is in accordance with specified requirements. 

    ASSESSMENT CRITERION 3 
    3. The feed is started and the de-sliming process is monitored and controlled in accordance with specified requirements. 

    ASSESSMENT CRITERION 4 
    4. Safe and optimum production is ensured through effective communication. 

    ASSESSMENT CRITERION 5 
    5. Tools and equipment are used in accordance with specified requirements. 

    ASSESSMENT CRITERION 6 
    6. Work related hazards and associated risks are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 7 
    7. The specified security requirements pertaining to the de-sliming process are met. 

    ASSESSMENT CRITERION 8 
    8. The de-sliming process is consistent with the environmental policy and other specified requirements. 

    ASSESSMENT CRITERION 9 
    9. Problems encountered are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 10 
    10. Safety and health precautions towards self and others are maintained in accordance with specified requirements. 

    SPECIFIC OUTCOME 4 
    Complete the duties pertaining to the de-sliming process. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. The de-sliming process is stopped in accordance with specified requirements. 

    ASSESSMENT CRITERION 2 
    2. Personal protective and safety equipment is dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 3 
    3. Tools and equipment are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 4 
    4. Specified security requirements pertaining to the de-sliming process are met. 

    ASSESSMENT CRITERION 5 
    5. Good housekeeping practices are maintained in accordance with specified requirements. 

    ASSESSMENT CRITERION 6 
    6. Specified reporting and data-recording requirements are met. 

    ASSESSMENT CRITERION 7 
    7. Preparation for maintenance is in accordance with specified requirements. Specified lock-out procedures are adhered to. 


    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 as a provider through the relevant ETQA by SAQA.

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

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Essential embedded knowledge will be assessed through assessment of the specific outcomes in terms of the stipulated assessment criteria. Candidates are unlikely to achieve all the specific outcomes, to the standards described in the assessment criteria, without knowledge of the listed embedded knowledge. This means that for the most part, the possession or lack of the knowledge can be directly inferred from the quality of the candidate`s performance. Where direct assessment of knowledge is required, assessment criteria have been included in the body of the unit standard.

    The following embedded knowledge is addressed in an integrated way in the unit standard:
  • Health and safety knowledge
  • Report writing
  • Legal and site-specific requirements. 


  • Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems and make decisions using critical and creative thinking.

    Note: The ability of the candidate to identify hazards and risks, sub standard conditions, process problems and to rectify these, illustrates his/her capability to solve problems. 

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as members of a team, group, organisation or community.

    Note: The ability of the candidate to communicate effectively and to maintain optimum production illustrates his/her capability to work effectively with others. 

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage themselves and their activities responsibly and effectively.

    Note: The ability of the candidate to maintain optimum production whilst adhering to safety procedures, illustrates his/her capability to organise and manage themselves and their activities responsibly and effectively. 

    UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information.

    Note: The ability of the candidate to implement corrective actions, illustrates his/her capability to collect, organise and critically evaluate information. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively, using visual, mathematical and/or language skills in the modes of oral and / or written presentations.

    Note: The ability of the candidate to maintain optimum production through effective communication and his/her ability to adhere to reporting requirements illustrates their capability to communicate effectively. 

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically showing responsibility towards the environment and health of others.

    Note: The ability of the candidate to adhere to safety, health and environmental requirements illustrates his/her capability to use science and technology effectively. 

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems by recognising that problem-solving contexts do not exist in isolation.

    Note: The ability of the candidate to explain the importance of the process in terms of achieving production and up and down stream requirements illustrates his/her understanding of the world as a set of related systems. 

    UNIT STANDARD ASSESSOR CRITERIA 
    Assessors should keep the following 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 
    TERMINOLOGY

    SPECIFIED REQUIREMENTS

    Specified requirements include legal and site-specific requirements and are contained in one or more of the following documents:

    LEGAL
  • Relevant Acts: e.g. Mine Health & Safety Act, 1996 (Act no 29/1996), and Minerals Act and Regulations, 1991 (Act no 50/1991)
  • Mandatory Codes of Practice
  • SABS and other relevant Standards
  • Chief Inspector of Mines` Directives

    SITE SPECIFIC
  • Hazard Identification and Risk Assessments (HIRA)
  • Occupational Health and Safety Risk Management Programme
  • Managerial Instructions
  • Mine Standard Procedures
  • List of Recorded OH&S Risks
  • Working Guides
  • Equipment and Materials Specifications 

  • QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  49045   National Certificate: Lump Ore Beneficiation  Level 2  NQF Level 02  Passed the End Date -
    Status was "Registered" 
    2007-11-28  Was MQA until Last Date for Achievement 


    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. ADCORP TECHNICAL TRAINING (PTY) LTD 
    2. ALLOYS HEAD OFFICE 
    3. Anglo American Platinum Amendelbult Concentrators 
    4. ANGLOGOLD ASHANTI LTD (V/R) 
    5. BAFOKENG RASIMONE MANAGEMENT SERVICES PTY LTD 
    6. BOKONI PLATINUM MINES (PTY) LTD 
    7. CULLINAN DIAMOND MINE PTY LTD 
    8. De Beers Voorspoed Mine 
    9. EASTERN CROME MINES SAMANCOR 
    10. ERGO BUSINESS DEVELOPMENT ACADEMY NPC 
    11. EXXARO COAL (PTY) LTD 
    12. FINSCH DIAMOND MINE(PTY) LTD 
    13. FOSKOR (PTY) LTD 
    14. HARMONY GOLD MINING CO LTD 
    15. IMPALA PLATINUM SERVICES LTD 
    16. KABELANO TRAINING SOLUTIONS (PTY) LTD 
    17. KHUMANI IRON ORE MINE 
    18. KHUTALA MINING SERVICES PL 
    19. KOLOMELA MINE 
    20. Kumba Sishen HRD Centre 
    21. LAFARGE SOUTH AFRICA 
    22. METSKILL PTY LTD 
    23. MINERAL MINING TRAINING INSTITUTE(PTY) LTD 
    24. MOYATAU COMMUNITY DEVELOPMENT 
    25. Nokaneng Environmental Management Consulting 
    26. PALABORA COPPER (PTY) LTD 
    27. SAMANCOR CHROME LTD 
    28. Talent Factor (Pty) Ltd 
    29. THUSANG METALLURGICAL ENGINEERING TRAINING AND CONSULTING CC 
    30. VENETIA MINE 
    31. Waterval Smelters Process Division 
    32. WESTERN CHROME MINES 
    33. WESTERN PLATINUM MINE 
    34. XTRACT TRAINING SERVICES CC 



    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.