What is ozone?
Ozone (O3), a gas composed of three oxygen atoms, is very reactive. This reactivity makes it a strong oxidizing agent. It is often used as a disinfectant in a wide range of processes like viral, bacterial and parasitic disinfection. Ozone can be used to remove taste, odor and color-affecting compounds. Ozone is also used to oxidize inorganic impurities such as iron, manganese and sulfides and has been shown to improve coagulation processes. Drinking water facilities often use ozone as an alternative to chlorine for drinking water disinfection. Ozone has increased in popularity as a water treatment method as regulatory limits for allowable concentrations of disinfection byproducts (DBPs), such as trihalomethanes (THMs) and haloacetic acids (HAAs), have become more challenging for municipalities to meet. Ozone can reduce DBP’s in two ways:
Water bottling facilities use ozone as the last disinfection step just prior to bottling. They must ensure a low level of ozone residual is maintained to meet regulatory limits. Ozone is also used in aquaculture (nitrite oxidation), pools and spas, groundwater remediation, winery and brewery sanitation (barrel/tank cleaning), electronics (surface cleaning), cooling water towers, laundry, and general industrial wastewater treatment.
Why test for ozone?
If ozone is being used as a disinfectant, testing is critical to ensure that the concentration is high enough to remove harmful agents. Excess disinfectant is costly and, when used for drinking water disinfection, can itself affect odor and taste. Frequent testing of ozone concentrations keeps systems running at peak efficiency.
About our test kits
Two ozone test methods are available that offer different measurement ranges:
CHEMetrics visual ozone test kits feature CHEMets® self-filling ampoules that contain pre-measured reagent for a single test. Simply snap the ampoule directly in a sample to draw in the correct volume of sample and then compare to the supplied color standards to find the concentration.
CHEMetrics also offers instrumental ozone test kits featuring Vacu-vials® ampoule technology. Vacu-vials ampoules feature a 13mm diameter and utilize the same self-filling technology as CHEMets ampoules. The Vacu-vials that utilize the DPD chemistry are compatible with most photometers or spectrophotometers.
Unlike other ozone test kits, CHEMetrics indigo trisulfonate test kit features a self-zeroing chemistry that eliminates the need to generate an initial indigo trisulfonate absorbance ampoule each time a test is run. Only one ampoule is needed for each test! These Vacu-vials tests require the use of Single Analyte Meter.
Click on a catalog number below for more information or to purchase a test kit.
|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|
|Range||Method||Kit Catalog No.|
For information regarding ozone analysis in the presence of chlorine using the DPD chemistry, see the Technical Bulletin under the Technical Information tab on the individual product pages.