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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Determine low velocity and volume flow rate of air 
SAQA US ID UNIT STANDARD TITLE
259603  Determine low velocity and volume flow rate of air 
ORIGINATOR
SGB Occupational Health and Safety 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 09 - Health Sciences and Social Services Preventive Health 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 2  NQF Level 02  2 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "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 
Learners who have achieved this unit standard will be able to determine low air velocities and volume flow rates of air in a working place to ascertain whether conditions are within the prescribed limits, and take appropriate action.

It is important to note that this unit standard only pertains to the usage of the tape and smoke methods.

People credited with this unit standard are able to:
  • Describe the requirements pertaining to determining the velocity and volume flow rate of air.
  • Prepare to determine air velocity.
  • Determine and record air velocity, calculate the volume flow rate of air and take appropriate action.
  • Perform post-measurement activities. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
  • Communication and mathematical literacy at NQF Level 1. 
    		•

    UNIT STANDARD RANGE 
    The focus of this unit standard is on potential consequences as they pertain to health and safety of self and others. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Describe the requirements pertaining to determining the velocity and volume flow rate of air. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Limits for velocities and volume flow rates in the working place are explained with reference to specified requirements. 

    ASSESSMENT CRITERION 2 
    Reasons for ventilating work places are explained in terms of consequences to health and productivity. 

    ASSESSMENT CRITERION 3 
    The principle of measuring velocities and volume flow rates, and the range and limitations are explained in terms of site-specific requirements and manufacturer's specifications. 

    ASSESSMENT CRITERION 4 
    The difference between velocity and volume flow rate of air is explained in terms of the usage of the smoke method. 

    SPECIFIC OUTCOME 2 
    Prepare to determine air velocity. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The required personal protective equipment is available, operational, fit for purpose, and used in accordance with its design and specified requirements. 

    ASSESSMENT CRITERION 2 
    The importance of examining and using the equipment is explained in terms of the consequences to occupational health and safety. 

    ASSESSMENT CRITERION 3 
    The measuring equipment is examined and defects found are dealt with according to specified requirements. 

    ASSESSMENT CRITERION 4 
    The importance of examining the measuring equipment and dealing with defects is explained in terms of the consequences to occupational health and safety. 

    ASSESSMENT CRITERION 5 
    Permission, where applicable, is obtained to enter the working place in accordance with specified requirements. 

    ASSESSMENT CRITERION 6 
    The dangers of entering a working place without obtaining permission are explained in terms of the consequences to occupational health and safety. 

    ASSESSMENT CRITERION 7 
    The position where measurements are to be taken is selected, examined and hazards and risks pertaining to occupational health and safety are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 8 
    The preparation work is performed in a manner that fosters teamwork and avoids conflict. 

    SPECIFIC OUTCOME 3 
    Calculate air velocity. 
    OUTCOME NOTES 
    This calculation must also include the calculation of the volume flow rate of air. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Air velocity is measured for recording purposes. 

    ASSESSMENT CRITERION 2 
    The importance of determining the air velocity as prescribed is described in terms of the consequences to occupational health and safety. 

    ASSESSMENT CRITERION 3 
    The cross sectional area is measured for recording purposes. 

    ASSESSMENT CRITERION 4 
    The importance of determining the area prescribed is explained in terms of the consequences to occupational health and safety. 

    ASSESSMENT CRITERION 5 
    Volume flow rate of air is calculated for recording purposes. 

    ASSESSMENT CRITERION 6 
    The result is evaluated to inform actions and decisions. 

    ASSESSMENT CRITERION 7 
    The importance of evaluating results and taking action is explained in terms of the possible consequences to occupational health and safety. 

    ASSESSMENT CRITERION 8 
    The importance of performing work in a manner that fosters teamwork and avoids conflict is described in terms of its impact on the work environment. 

    SPECIFIC OUTCOME 4 
    Perform post-measurement activities. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Equipment is examined in order to determine its working condition and any defects must be recorded and reported according to standard operating procedures. 

    ASSESSMENT CRITERION 2 
    Reports are compiled for dissemination and other relevant purposes. 
    ASSESSMENT CRITERION RANGE 
    Compilation and dissemination must take place in line with statutory and organisational requirements.
     


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner or moderating the assessment of a learner against this unit standard 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 unit standard 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 with an ETQA that has a Memorandum of Understanding with the relevant ETQA, according to the ETQA's policies and guidelines for assessment and moderation.
  • Anyone wishing to be assessed against this unit standard 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 
    N/A 

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Solve problems.

    Note: The ability of the learner to identify, record and deal with sub-standard air velocities contributes to his/her problem solving skills.

    Refer to the following Specific Outcome/s:
  • Prepare to determine air velocity. 
    		•

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team/group/organisation/community.

    Note: The ability and willingness of the learner to accept interpret and delegate work instructions correctly, when and if required, in an appropriate manner indicates that he/she can work effectively as a team member in the bigger organisational structure.

    Refer to the following Specific Outcome/s:
  • Prepare to determine air velocity.
  • Calculate air velocity. 
    		•

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage oneself and one's activities responsibly and effectively.

    Note: The identification of hazardous and unhealthy conditions the recording thereof and taking appropriate action will indicate that the learner can organise and manage activities in his/her working environment.

    Refer to the following Specific Outcome/s:
  • Prepare to determine air velocity. 
    		•

    UNIT STANDARD CCFO COLLECTING 
    Collect, organise and evaluate information.

    Note: The ability of the learner to collect and interpret the information obtained and take appropriate action will indicate proficiency in collecting, organising and evaluating information.

    Refer to the following Specific Outcome/s:
  • Calculate air velocity. 
    		•

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

    Note: The ability of the learner to use visual and language skills in dealing with sub-standard velocities will indicate his/her effectiveness to communicate information.

    Refer to the following Specific Outcome/s:
  • Calculate air velocity. 
    		•

    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 learner to select the appropriate measuring equipment and measure air velocities indicates that he/she is able to use science and technology.

    Refer to the following Specific Outcome/s:
  • Calculate air velocity. 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems.

    Note: The ability of the learner to identify and refer anomalous behaviour to a specialist confirms understanding that a specific observation, inference, action or decision can have an interrelated effect.

    Refer to the following Specific Outcome/s:
  • Calculate air velocity. 
    		•

    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 
    Specified Requirements:

    Specified requirements include legal and site-specific requirements and are contained in one or more of the following documents:
  • Relevant current legislation, regulations and directives pertaining to mining and occupational health and safety.
  • Managerial instructions.
  • Codes of Practice.
  • Company Standards.
  • Standard Task Procedures.
  • Health Management Programme.
  • Risk Assessment Documentation.
  • Working Guides.
  • Manufacturers' specifications. 
    		•

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  74269   National Certificate: Occupational Health, Safety and Environment  Level 2  NQF Level 02  Passed the End Date -
    Status was "Reregistered"     		 2023-07-30  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.