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: 

Quantify analyte concentrations in prepared samples by means of Ultraviolet-Visible Spectrophotometry 
SAQA US ID UNIT STANDARD TITLE
256598  Quantify analyte concentrations in prepared samples by means of Ultraviolet-Visible Spectrophotometry 
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 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 replaces: 
US ID Unit Standard Title Pre-2009 NQF Level NQF Level Credits Replacement Status
9751  Quantify analyte concentrations in prepared samples by means of Ultraviolet-Visible Spectrophotometry  Level 3  NQF Level 03  Complete 

PURPOSE OF THE UNIT STANDARD 
This unit standard will be useful for people who are required to analyte samples by means of Ultraviolet-Visible Spectrophotometer (UV-Vis).

This unit standard is intended to promote general skills in and knowledge of analysing samples by means of Ultraviolet-Visible Spectrophotometer (UV-Vis) in the mining and minerals sector.

People credited with this unit standard are able to:
  • Demonstrate and apply knowledge of occupational health, safety and environmental factors relating to the use of UV-Vis Spectrophometry.
  • Demonstrate knowledge relating to UV-Vis Spectrophotometry.
  • Determine analyte concentrations in prepared samples.
  • Explain or deal with problems relating to UV-Vis Spectrophotometry. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    It is assumed that learners are already competent in:
  • Communication at NQF Level 2.
  • Mathematical Literacy at NQF Level 2. 

  • UNIT STANDARD RANGE 
    N/A 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Demonstrate and apply knowledge of occupational health, safety and environmental factors relating to the use of a UV-Vis Spectrophotometry. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Occupational hazards and risks pertaining to the UV-Vis determination are identified and explained with reference to occupational health and safety and environmental impact. 
    ASSESSMENT CRITERION RANGE 
    Occupational hazards and risks associated with the following:
  • Chemicals.
  • Waste disposal.
  • Spillage.
  • Heat and radiation.
     

  • ASSESSMENT CRITERION 2 
    The appropriate preventive measures to deal with occupational hazards and risks are described in accordance with specified requirements. 
    ASSESSMENT CRITERION RANGE 
    Preventive measures include:
  • Personal protective equipment.
  • Fume and heat extraction.
     

  • ASSESSMENT CRITERION 3 
    The required personal protective and safety equipment is used and maintained in accordance with legal and operational requirements. 

    ASSESSMENT CRITERION 4 
    Work is conducted to meet occupational health, safety and environmental standards in accordance with specified requirements. 
    ASSESSMENT CRITERION RANGE 
    Occupational health, safety and environmental issues must include:
  • Housekeeping.
  • Waste disposal.
  • Storage.
     

  • ASSESSMENT CRITERION 5 
    The consequences of non-compliance with specified requirements are explained with respect to occupational personal and occupational health and safety and impact on the environment. 

    SPECIFIC OUTCOME 2 
    Demonstrate knowledge relating to UV-Vis Spectrophotometry. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The basic principle of UV-Vis spectroscopy is explained with reference to the analyses performed. 

    ASSESSMENT CRITERION 2 
    The principal components of the UV-Vis spectrophotometer are identified and their primary functions are described in accordance with operational requirements. 
    ASSESSMENT CRITERION RANGE 
    Principal components must include:
  • Quartz and glass cuvettes.
  • Detectors.
  • Light sources.
  • Sample introduction system.
  • Mono-chromator.
  • Readout systems.
     

  • ASSESSMENT CRITERION 3 
    The effects of analyte concentration, light path and intensity are explained with reference to optimal transmittance (Beer-Lambert Law). 

    ASSESSMENT CRITERION 4 
    The relevance of stability and specificity of developed colour are explained with reference to preparation of standard and sample solutions. 

    ASSESSMENT CRITERION 5 
    The purpose of the determination is explained in terms of customer requirements. 

    SPECIFIC OUTCOME 3 
    Determine analyte concentration in prepared samples. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The calibration standards and samples are identified and verified in accordance with specified requirements. 

    ASSESSMENT CRITERION 2 
    The UV-Vis Spectrophotometer is calibrated in accordance with operational requirements. 

    ASSESSMENT CRITERION 3 
    The analyte concentration is quantified and results reported in accordance with operational requirements. 

    ASSESSMENT CRITERION 4 
    Equipment is maintained in accordance with legal and operational requirements. 
    ASSESSMENT CRITERION RANGE 
    Equipment must include:
  • Light source.
  • Cuvettes and holders.
  • Windows.
  • Sample introduction system.
     

  • ASSESSMENT CRITERION 5 
    The sample is prepared in accordance with operational requirements. 

    ASSESSMENT CRITERION 6 
    The physical characteristics of the prepared sample are ensured to be in accordance with operational requirements. 

    SPECIFIC OUTCOME 4 
    Explain or deal with problems relating to UV-Vis Spectrophotometry. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Common problems and their effect on the process are explained and appropriate preventive or corrective actions are described and/or dealt with in accordance with specified requirements. 
    ASSESSMENT CRITERION RANGE 
    Must include common problems associated with the following:
  • Excessive curvature of calibration graph.
  • Condition of tubing.
  • Signal instability.
  • Analyte concentration falls outside calibration range.
  • Failure of light source.
  • Contamination.
  • Incorrect choice of cuvettes.
  • Condition of cuvettes.
  • Failure of sample introduction system.
  • Instability of colour complex.
  • Insufficient lamp warm-up time.
     

  • ASSESSMENT CRITERION 2 
    The work is conducted in a manner that ensures continuity, and supports a smooth flow throughout the process. 

    ASSESSMENT CRITERION 3 
    The effect of non-compliance with operational equipment is explained in terms of production, quality, costs and lost time and turnaround time for analytical results. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner or moderating the assessment of a learner against qualification must be registered as an assessor with the relevant Education, Training, Quality, Assurance (ETQA) Body, or with an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Any institution offering learning that will enable the achievement of this qualification must be accredited as a provider with the relevant Education, Training, Quality, Assurance (ETQA) Body, or with an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Assessment and moderation of assessment will be overseen by the relevant Education, Training, Quality, Assurance (ETQA) Body, or by an ETQA that has a Memorandum of Understanding with the relevant ETQA, according to the ETQA's policies and guidelines for assessment and moderation.
  • Moderation must include both internal and external moderation of assessments, unless ETQA policies specify otherwise. Moderation should also encompass achievement of the competence described in the associated Unit Standards.
  • Anyone wishing to be assessed against this qualification may apply to be assessed by any assessment agency, assessor or provider institution that is accredited by the relevant ETQA. 

  • UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Essential embedded knowledge is addressed in the unit standard in an integrated manner:

    Knowledge related to quantifying analyte concentrations in prepared samples by means of ultra-violet visible spectrophotometry:
  • The basic principle of UV-Vis spectroscopy.
  • Principal components of the UV-Vis spectrophotometerand their primary functions.
  • Effects of analyte concentration, light path and intensity.
  • Purpose of the determination.
  • Calibration of the UV-Vis Spectrophotometer.
  • Equipment maintenance.

    Critical factors and functions relating to the process:
  • Safety, health and risk management requirements.
  • Achieving specified production requirements.
  • Emergency procedures.
  • Security requirements.
  • Specified communication requirements.

    Processes and events:
  • Process flow and interlock systems.
  • Factors affecting the performance of the process.

    Causes and effects (Safety and Health):
  • Use of personal protective equipment.
  • Use of tools and equipment.
  • Condition of safety devices.
  • Utilisation of process equipment and consumables.
  • Workplace hazards and associated risks.
  • Effective communication.

    Procedures and techniques:
  • Methods of collecting and analysing, organising, summarising and presenting data.
  • Fault finding and correction technique.
  • Quality related procedures.
  • Operating procedure.

    Regulations, legislation, agreements, policies and standards:
  • Safety, health and environmental legislation and regulations.
  • Quality policies, standards and agreements. 

  • UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO WORKING 
    The learners ability to work to high levels of accuracy and inconsistency will contribute to the overall performance of the laboratory team. 

    UNIT STANDARD CCFO ORGANISING 
    The learner's ability to keep accurate records and make accurate entries into the relevant log sheets. 

    UNIT STANDARD CCFO COLLECTING 
    The learner's ability to follow work procedures closely, adhering meticulously to relevant procedures when quantifying analyte concentrations in prepared samples by mewans of UV-Vis Spectroscopy. 

    UNIT STANDARD CCFO SCIENCE 
    The learner's ability to use and interact with technologically advanced procedures and equipment in a modern laboratory environment when quantifying analyte concentrations in prepared samples by means of UV-Vis Spectroscopy. 

    UNIT STANDARD CCFO DEMONSTRATING 
    The learner is aware that in the mining (refining) industry various systems are dependent on each other, and accepts responsibility in that regard. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    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 replaces unit standard 9751, "Quantify analyte concentrations in prepared samples by means of Ultraviolet-Visible Spectrophotometry", Level 3, 6 credits.

    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 and Regulations and Minerals Act and Regulations.
  • Mandatory Codes of Practice.
  • SANS and other relevant Standards.
  • Chief Inspector of Mines' Directives/Instructions.
  • Guidelines issued by the Chief Inspector of Mines.
  • Material Safety Data Sheets.

    Site Specific:
  • Hazard Identification and Risk Assessments (HIRA).
  • Occupational Health and Safety Risk Management Programme.
  • Voluntary Codes of Practice.
  • 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  64950   Further Education and Training Certificate: Laboratory Analysis  Level 4  NQF Level 04  Reregistered  2021-06-30  As per Learning Programmes recorded against this Qual 


    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.
     
    NONE 



    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.