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ASTM International - ASTM D1252-06

Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water

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Organization: ASTM International
Publication Date: 15 February 2006
Status: inactive
Page Count: 12
ICS Code (Examination of water for chemical substances): 13.060.50
significance And Use:

These test methods are used to chemically determine the maximum quantity of oxygen that could be consumed by biological or natural chemical processes due to impurities in water. Typically this... View More

scope:

1.1 These test methods cover the determination of the quantity of oxygen that certain impurities in water will consume, based on the reduction of a dichromate solution under specified conditions. The following test methods are included: Equation 1 - Test Method A-Macro COD by Reflux Digestion and TitrationEquation 2 - Test Method B-Micro COD by Sealed Digestion and Spectrometry

1.2 These test methods are limited by the reagents employed to a maximum chemical oxygen demand (COD) of 800 mg/L. Samples with higher COD concentrations may be processed by appropriate dilution of the sample. Modified procedures in each test method (Section 15 for Test Method A and Section 24 for Test Method B) may be used for waters of low COD content ( 50 mg/L).

1.3 As a general rule, COD results are not accurate if the sample contains more than 1000 mg/L Cl. Consequently, these test methods should not be applied to samples such as seawaters and brines unless the samples are pretreated as described in Appendix X1.

1.4 This test method was used successfully on a standard made up in reagent water. It is the user's responsibility to ensure the validity of these test methods for waters of untested matrices.

1.5 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 8, 15.6, and 24.5.

Document History

January 1, 2020
Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
1.1 These test methods cover the determination of the quantity of oxygen that certain impurities in water will consume, based on the reduction of a dichromate solution under specified conditions. The...
June 15, 2012
Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
1.1 These test methods cover the determination of the quantity of oxygen that certain impurities in water will consume, based on the reduction of a dichromate solution under specified conditions. The...
June 15, 2012
Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
1.1 These test methods cover the determination of the quantity of oxygen that certain impurities in water will consume, based on the reduction of a dichromate solution under specified conditions. The...
ASTM D1252-06
February 15, 2006
Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
1.1 These test methods cover the determination of the quantity of oxygen that certain impurities in water will consume, based on the reduction of a dichromate solution under specified conditions. The...
June 10, 2000
Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
1.1 These test methods cover the determination of the quantity of oxygen that certain impurities in water will consume, based on the reduction of a dichromate solution under specified conditions. The...
January 1, 1995
Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
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