CHEMetrics' ppb D.O. visual test is ASTM's primary reference standard for measuring and testing dissolved oxygen in water. With sensitivity down to 2 ppb, Dissolved Oxygen CHEMets® ampoules provide power plant operators with a rapid, reliable means to determine ppb levels of Dissolved Oxygen.
Each low range D.O. kit includes a special sampling tube that allows the user to break the tip of the ampoule in a flowing sample stream in order to preclude error from contamination by atmospheric oxygen.