Hydrion Ammonia Test Papers 0-100 ppm, Single 15 ft. Roll

Hydrion Ammonia Range: 0 - 100 ppmSharp color changes at each whole valueEach kit contains one roll of paper in a protective plastic dispenser with a matching color chartTo use simply tear off a strip of paper, moisten and expose to air - wait 15 seconds and then compare to the calibrated color chartEach roll is sufficient for 75 - 100 tests