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This test method covers the colorimetric determination of the quantity of oxygen that certain impurities in water will consume, based on the reduction of a manganese III solution under specified conditions. This standard method does not use characteristic heavy metal reagents, thus eliminating environmental and disposal concerns apparent in other methods.
Formerly under the jurisdiction of Committee D19 on Water, this test method was withdrawn in February 2010 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
1.1 This test method covers the colorimetric determination of the quantity of oxygen that certain impurities in water will consume, based on the reduction of a manganese III solution under specified conditions. This standard method does not use characteristic heavy metal reagents, thus eliminating environmental and disposal concerns apparent in other methods.
1.2 This test method determines chemical oxygen demand colorimetrically using manganese III to obtain a visible color intensity inversely proportional to the chemical oxygen demand of the sample. Analytical test kits conforming to these methods are available commercially in ranges from 80 to 1,000 mg/L (ppm) chemical oxygen demand. It is the user's responsibility to ensure the validity of these test methods for their specific samples and matrices.
1.3 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 Sections 9 and 12.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D596 Practice for Reporting Results of Analysis of Water
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
D2777 Determination of Precision and Bias of Applicable Methods of Water
D5789 Writing Quality Control Specifications for Standard Test Methods for Organic Constituents
D5905 Practice for the Preparation of Substitute Wastewater
E60 Practice for Photometric and Spectrophotometric Methods for Chemical Analysis of Metals
E275 Practice for Describing and Measuring Performance of Ultraviolet, Visible and Near Infrared Spectrophotometers
ASTM D6697-01, Standard Test Method for Determination for Chemical Oxygen Demand (Manganese III Oxygen Demand) of Water (Withdrawn 2010), ASTM International, West Conshohocken, PA, 2001, www.astm.orgBack to Top