1, NORM
2, QTY: 5M/BOX
3, Packing: clear box
Instructions for use:
Take a few drops of test solution is spotted on paper, paper to blue-violet, indicating nitrite free chlorine or other strong oxidants.
The detection limit: 1 mg / l NO2- / 1 mg / l Cl2. b, this paper should be stored in a dark, dry place.

NORM Potassium Iodide Starch Paper