1.1 This test method covers the Catalyzed Ozone Hydroxyl Radical Oxidation system for the on-line analysis of total organic carbon, total carbon and total inorganic carbon in water, wastewater and industrial wastewater. 1.2 The carbon concentrations measured with this test method are in the range from 0.006 mg/L up to 40 000 mg/L. 1.3 This method allows the measurement of high organic and inorganic carbon concentration samples, and samples containing high levels of salts without any filtration and dilution requirement. 1.4 The chemical oxidation process, applied in this method, takes place at atmospheric pressure and at ambient temperatures in a high pH environment using hydroxyl radicals. 1.5 This method , which uses the catalyzed ozone hydroxyl radical oxidation (1) , has an oxidation potential of 2.80 V (2). The oxidation process is self-cleaning. NOTE 1 ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. 1.6 The Catalyzed Ozone Hydroxyl Radical Oxidation technology is utilized in a wide range of industries across the globe and is an alternative test method for the measurement of organic and inorganic carbon in water. 1.7 This method is also used in applications, such as process and wastewaters in the dairy, oil and gas, pulp and paper, and chemical plants, and refineries, where on-line total organic carbon analysis was previously considered to be not possible. 1.8 The values stated in SI units are to be regarded as standard. 1.9 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 9.
The Catalyzed Ozone Hydroxyl Radical Oxidation method is a chemical oxidation method which does not use UV light, persulfates, combustion, high pressure & temperature oxidation or conductivity. This method is currently being used successfully in a wide range of industries world wide and is fast becoming the method of choice as a self-cleaning, low maintenance, accurate and reliable alternative method. Equipment using the Catalyzed Ozone Hydroxyl Radical Oxidation method has been installed in industry since 1995 and has a worldwide installed base of over 1300 analysers.
Keywordstotal organic carbon; hydroxyl radical oxidation; water analysis; on-line monitoring system; total carbon; total inorganic carbon; non-purgeable organic carbon; purgeable organic carbon; volatile organic carbon; non-dispersive infrared analyzer; product loss prevention; process control; influent monitoring; final discharge monitoring; waste minimization.
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
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