The nitrite/nitrate test strip is used to test for nitrites & nitrates in solution simultaneously. The nitrate pad detects Nitrate in solution at 10, 25, 50, 100, 250, & 500 ppm. The nitrite pad detects Nitrite in solution at 1, 5, 10, & 25 ppm. The unit of measure is as nitrite, not nitrite-nitrogen. Nitrite test strips are often used when testing for nitrites in wine, seafood, and sandwich meats, such as ham and bologna. Nitrate test strips are often used to test fertilizer run-off in agricultural areas. This strip is very sensitive to light and moisture, so be sure to keep the vial tightly sealed.
Canadian Owned