Nitrate 0-500 ppm Test Strip [Vial of 25 Strips] auspowers_batchthree without moving around

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Nitrate 0-500 ppm Test Strip [Vial of 25 Strips] auspowers_batchthree without moving aroundNitrate 0 500 ppm Test Strip [Vial of 25 Strips] The Nitrate test strip is used to detect Nitrate in solution at 10, 25, 50, 100, 250, & 500ppm. 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. Make sure to reseal the bottle immediately after opening to prevent the moisture from ruining them. Excessive amounts of nitrate