No reagents or field kits needed for tests, all you need is one strip and no chemicals
Easy to use waterproof color chart printed on every vial along with instructions
Distinct color scale with marks at 0, 30, 75, 150, and 300 ppm Phosphate (and 0, 10, 25, 50, and 100 ppm Phosphorous)
Long plastic strips ensure you can keep your fingers away from what is being tested
The Phosphate test strip detects orthophosphate ions and expresses the result as ppm phosphorous. To express the result as phosphate, multiply the result by 3. This test strip has a unique construction for more accurate testing. This strip has a sensitivity of 5PPM Phosphorous. Instructions: Dip the test strip into the solution to be tested for 1 second. Remove and compare against the color chart after 3 minutes.