I would like to perform one more test. May I have another sample of the same salt?
Categories
Value
Category
1
SALT TESTED: 0 PPM (NO REACTION)
2
SALT TESTED: BELOW 15 PPM (BETWEEN 0 AND 15 PPM)
3
SALT TESTED: ABOVE 15 PPM (AT LEAST 15 PPM)
6
SALT NOT TESTED: OTHER REASON
9
NO RESPONSE
Sysmiss
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
Interviewer instructions
Apply 5 drops of recheck 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.