Interviewer instructions
This is an additional test to make sure the iodised salt particularly for the 0 ppm salt that you tested in the first round. Apply 5 drops of re-check solution. Then apply 2 drops of test solution on the same spot. Observe the darkest reaction within 30 seconds, compare to the colour chart and then record the response (1, 2 or 3) that corresponds to test outcome.
It is important to remember, when doing a retest, you must use a new sample of salt, add the re-check solution first and then add the test solution.
