The I-2020 Peracetic Acid Meter is designed for accurately and quickly measuring Peracetic Acid in water levels from 0 - 5.00 ppm. This device uses the DPD method. In the Peracetic Acid DPD test method, the sample is treated with an excess of potassium iodide. Peracetic acid oxidizes the iodide to iodine. The iodine then oxidizes DPD (N, N-diethyl-p-phenylenediamine) to form a pink-colored species that is directly proportional to the peracetic acid concentration in the sample. Results are expressed as ppm (mg/L) peracetic acid.
Various oxidizing agents such as halogens, ozone, and cupric ions will produce high test results. Hydrogen peroxide does not interfere if present at levels comparable to the peracetic acid levels.
- SAM Photometer (I-2020)
- K-7913 Vacu-vials (30 test)
- 4 AAA batteries for operation
- Light Shield
- Screwdriver for installing/replacing batteries
- Instruction manual
- Carrying case to hold device & accessories
How to use the I-2020:
- The I-2020 must be turned on.
- Put the Zero ampoule into the device and cover with the light shield piece to zero out the unit. (NOTE: This must be zeroed any time the unit is turned off and turned back on)
- Add 5 Drops of Activator Solution
- Fill to the 25 mL mark in the sample cup with your water.
- Snap the end of the Vacu-vial in the water on the bottom/side of the 25 mL sample cup.
- Mix the contents of the ampoule by tipping back and forth a few times.
- Dry the vacu-vial and wait 1 minute for color development.
- Place the vacu-vial ampoule into the device (flat end first) for readout.
Peracetic Acid Tech Sheet
Peroxide and Peracetic Acid
Peracetic Acid Information