Proficiency Testing Schemes

SAGL offers different Proficiency Testing Schemes on National level as well as international level.  Kindly find the attached for more information on the Proficiency Testing Schemes offered by the SAGL. 

The number of participants per Proficiency Testing Schemes varies, as an example: For the Wheat and Flour Proficiency Testing Scheme approximately 25 Labs participate regularly.

The SAGL Proficiency Testing Schemes Process is as Follows:

  • Specific action dates are scheduled for different Proficiency Testing Schemes and the frequencies are indicated in the attached Proficiency Testing Scheme Summary.
  • Participant receives a quotation at the beginning of the applicable month from SAGL for the specific Proficiency Testing Scheme.
  • The participant forwards the order number to the SAGL for invoicing purposes.
  • SAGL couriers the samples to the participants according to the SAGL’s Proficiency Testing Scheme year planner.
  • Participant receives a result sheet included in the sample consignment for reporting of results.
  • Participant has approximately 1 month to report results; the reporting date is indicated on the result sheet.
  • Participant forwards results reported on the result sheet provided, to SAGL by email. The SAGL compiles a Test Report with the results of all the participants, the participants are however only identified by SAGL assigned numbers to ensure confidentiality.  SAGL forwards the report by email to all participants. Each participant receives only their own Laboratory number in a separate email from the SAGL.

If your company is interested to participate in one or more of these Proficiency Testing Schemes, please complete the participant application form and email it to me if completed from the downloaded PDF. Please note, it is recommended but not necessary to participate in all 4 or 6 tests/year.

You are welcome to contact me if you require more information or spesific details.

Kind Regards,
Theresa de Beer


  • Product Type: 1 kg Super / Special Meal
  • Interval: Quarterly
  • Types of Analysis:
    • Speck count, Particle size, Moisture, Fat, Fibre, Protein, Ash and Whiteness Index
  • Product Type: 250g/750g White / Yellow Maize
  • Interval: Quarterly
  • Types of Analysis:
    • Full RSA Maize Grading
  • Product Type:  250 g Maize
  • Interval: Beginning March
  • Types of Analysis:
    • Full RSA Maize Grading


  • Product Type: 250g Soybeans
  • Interval: Mid February
  • Types of Analysis:
    • Full RSA Soybean Grading
  • Product Type: 250 g Soybeans and 500g Soybean meal
  • Interval:Quarterly
  • Types of Analysis:
    • Soybeans: RSA Soybean Grading, Moisture, Fat, Fibre, Protein and Ash.
    • Soybean Meal: Moisture, Fat, Fibre, Protein, Ash, Cystine, Lysine, KOH protein solubility, PDI, TIA, Urease activity.


  • Product Type:
    • 2 Kg Whole Wheat
    • 50 g White Bread Flour
    • 250 g Brown Bread Flour
    • 2.5 kg White Bread Flour
  • Interval: Quarterly
  • Types of Analysis:
    • White Bread Flour: Moisture, Colour, Falling number, RVA falling number equivalent, Protein, Ash, Starch damage, Wet gluten, Dry gluten, Gluten index, Farinograph, Alveograph, Consistogram, Extensigraph and Mixograph.
    • Whole Wheat Sample: Hectoliter mass, Whole wheat moisture, Whole wheat flour-moisture, Protein, Falling number, RVA falling number equivalent, Wet gluten, Dry gluten and Mixograph.
    • Brown Bread Flour. Bran content and Colour.
  • Product Type: 1.5 kg whole Wheat
  • Interval: Quarterly
  • Types of Analysis:
    • Full RSA Wheat Grading
  • Product Type:
    • 500g White Bread Flour
    • 500g Cake Flour
  • Interval: Bi-Monthly
  • Types of Analysis:
    • Konica Minolta Dry Colour


Annual pre-harvest Grading ring test

  • Product Type: 60 g Sunflower
  • Interval: End January
  • Types of Analysis:
    • Full RSA Sunflower Grading

Quarterly Sunflower quality and sunflower cake

  • Product Type: 250 g Sunflower and 500 g Sunflower cake
  • Interval: Quarterly
  • Types of Analysis:
    • Sunflower: Crude Fat, Moisture
    • Sunflower cake: Crude Fibre, Crude Fat, Crude Protein, Moisture.