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Ozone (Chlorine) Test Kits 0.5-1mg/1

Description

Visual Kits

Range MDL Method Kit Catalog No. Refill Catalog No.
0-0.60 & 0.6-3.0 ppm 0.025 ppm DPD K-7404 R-7404

Instrumental Kits

Range Method Kit Catalog No.
0-0.75 ppm Indigo K-7433
0-0.75 ppm Indigo I-2022
0-5.00 ppm DPD K-7423
0-5.00 ppm DPD I-2019

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/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, 23rd 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.

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