The OFITE Potassium (K+) test is suitable as a rapid guiding test for potassium in water, drilling fluids, and extracts from soil samples. A particular advantage of the test is that potassium can be semi-quantitatively determined in the presence of 10 times its amount of sodium. The test strips have a color scale graduated as follows: Range: 0 - 300 - 700 -1,000 - 2,000 mg/L (ppm) K+. The test is a very simple procedure. Immerse the strip briefly in the sample solution, shake off excess moisture, immerse for 1 minute in 0.7% nitric acid, and compare the color with the color scale. The plastic box contains 100 test strips.
Size: 6" × 1.5" × 5" (15 × 4 × 13 cm)
Weight: 7 oz (0.2 kg)
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