If any addition of boron compounds which occur in NSW has been done then wait atleast 24 hours after such an addition before testing with this test.
If you use boron containing compounds other than boric acid or tetraborates then it might be possible that wrong boron concentration is measured. The pH of the water to be tested has to be between 8.00 and 8.6 otherwise somewhat deviating results might be found.
Keep out of reach of children. Not for consumption.
Natural Sea water contains approx. 4.4 - 4.8 ppm boron.
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