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CHEMets Bromine Visual Method
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CHEMets Bromine Visual Method
The CHEMets Method To perform a test, immerse the CHEMet ampoule into the sample and snap off the tip (Step 1)- the correct volume of sample is automatically drawn in, filling the ampoule; a small inert gas bubble remains in the ampoule. To facilitate mixing the sample and reagent, tilt the ampoule back and forth so the bubble travels from end to end (Step 2). In 2 minutes or less, quantify the result by comparing the filled ampoule to the appropriate color standard(s) (Step 3). For higher concentrations, the flat comparator is used. For lower concentrations, the round comparator is used. The ampoule is compared with the standards until a color match is found. Kits include 30 ampoules, comparator(s), accessory solution(s)(when necessary), a sample cup, and instructions. Refill packs of 30 ampoules and accessory solutions are available separately. Comparators have a 2-year shelflife. Material Safety Data Sheets are provided in test kits. CHEMets ampoules are designed for maximum simplicity and accuracy. Each glass ampoule is 7 mm in diameter, 100 mm in length, with a tapered, pre-scored tip; reagents are vacuum-sealed inside.
Product Description
Method
Reference: Developed by CHEMetrics, Inc.
Bromine, a less volatile compound than chlorine, is used as a sanitizing agent in drinking water systems, swimming pools, and spas.
The DDPD Reagent, a methyl-substituted form of DPD is employed. Potassium iodide is added to the sample before analysis. Bromine reacts with the iodide to liberate iodine. The iodine reacts with the DDPD reagent to form a purple color. Results are expressed in ppm (mg/L) bromine as Br2.
Visual Kit
Range: 0-2 & 2-10 ppm
MDL: 0.1 ppm / Method: DDPD
Cat# CHEMets Kit K-1610
CHEMets Refill, 30 ampoules R-1610
Activator Solution Pack, six 10 mL bottles, Shelf-life 2 years A-16001
Low Range Comparator, Shelf-life 2 years: 0, 0.2, 0.4, 0.6, 0.8, 1.2, 1.6, 2.0 ppm C-1602
High Range Comparator, Shelf-life 2 years: 2, 3, 4, 5, 6, 7, 8, 9, 10 ppm C-1610
Kit comes in a plastic case and contains everything needed to perform 30 tests: Refill, Low and High Range Comparators, Activator Solution, 25 mL sample cup, instructions, and MSDS.