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Bromine Test Kits

Bromine Test Kits

What is Bromine?

Bromine is a naturally occurring oxidizer used for disinfection of water in some industries. It is commonly used in spas, swimming pools, and cooling towers. Bromine degrades more slowly in sunlight than chlorine and is sometimes used as a chlorine replacement, particularly when skin sensitivities are a concern.

Why Test for Bromine?

Bromine is typically measured to determine whether water disinfection programs are performing efficiently. Having too much bromine indicates an overuse of chemical leading to lost profit while low bromine represents inadequate disinfection.

About our Test Kits

CHEMetrics’ colorimetric test kits for the analysis of bromine in water are visual test kits that form a pink color. Our self-filling ampoule technology reduces the user’s exposure to chemicals and creates a test with fewer steps.

Click on a catalog number in the tables below for more information or to purchase a test kit.

Visual Kits

Range MDL Method Kit Catalog No. Refill Catalog No.
0-2.2 & 0-11 ppm 0.125 ppm DPD K-1605 R-7904


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.
The water bromine test kit employs the DPD chemistry method. Potassium iodide is added to the sample before analysis. Bromine reacts with the iodide to liberate iodine. The iodine reacts with the DPD (N, N-diethyl-p-phenylenediamine) to form a pink color. Results are expressed in ppm (mg/L) bromine as Br2.