The K-2504 CHEMets Visual Kit is visual indicator kit for measuring chlorine in water levels from 0-1 and 0-5ppm. This device uses the DPD Method for testing. Free chlorine oxidizes DPD (N,N-diethyl-p-phenylenediamine) to form a pink colored species in direct proportion to the chlorine concentration. Total chlorine, the sum of free and combined chlorine, is determined by adding an excess of potassium iodide to the sample. Chloramines (combined chlorine) oxidize the iodide to iodine. The iodine then oxidizes DPD to the pink colored species. Other halogens, ozone and halogenating agents will produce high test results. Chlorine at concentrations significantly above the test range may prevent proper color development, causing low test results.
This is a visual color comparing test kit for inexpensive dissolved chlorine measurement. The refill kit R-2500 can be purchased for more tests.
The cost per test is $0.89.
- Low Range Comparator (0-1ppm)
- High Range Comparator (0-5ppm)
- R-2500 Chlorine Visual Ampoules (30 test)
- A-2500 Activator Solution
- 25 mL sample cup
- Instruction manual
How to use the K-2504:
- To test, add 5 drops of A-2500 Activator Solution to the sample cup.
- Fill the 25 mL sample cup with your sample water.
- Snap the end/tip of the ampoule in the water on the bottom/side of the 25 mL sample cup.
- Mix the contents of the ampule by tipping back and forth a few times.
- Dry the ampoule and wait 1 minute for color development.
- Obtain the test result by matching to the corresponding color comparator.
- For the low range comparator: Place the ampoule, flat end first, into the comparator. Hold the comparator up towards a light source and view from the bottom. Rotate the comparator until the best color match is found.