Ozone SAM Photometer Kit, 0-5.00 ppm Range
SAMs (Single Analyte Meters): Value and Convenience
Includes:
- Plastic case
- Contains everything needed to perform 30 tests: Vacu-vials Kit
- SAM Photometer
- 4 AAA batteries
- Screwdriver
- Instructions
Methods
Ozone is a strong oxidizing agent and is used as an alternative to chlorine as a biocide in the disinfection of drinking water. Ozone is used to remove odor, decolorize, and to control algae and other aquatic growths.
Ozone is also used in various disinfectant and sterilization processes in the food & beverage and pharmaceutical industries.
The DPD Method
References: USEPA Methods for Chemical Analysis of Water and Wastes, Method 330.5 (1983). APHA Standard Methods, 22nd ed., Method 4500-Cl G - 2000. Potassium iodide is added to the sample before analysis. Ozone reacts with the iodide to liberate iodine. The iodine reacts with DPD (N, N-diethyl-p-phenylenediamine) to form a pink color. Results are expressed as ppm (mg/L) O3.
