ASTM D1252-06(2020)
Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water

Standard No.

ASTM D1252-06(2020)

Release Date

2020

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D1252-06(2020)

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: Test Method A — Macro COD by Reflux Digestion and Titration 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 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 8, 15.6, and 24.5. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D1252-06(2020) Referenced Document

• ASTM D1129 Standard Terminology Relating to Water
• ASTM D1193 Standard Specification for Reagent Water
• ASTM D2777 Standard Practice for Determination of Precision and Bias of Applicable Methods of Committee D-19 on Water
• ASTM D3223 Standard Test Method for Total Mercury in Water
• ASTM D3370 Standard Practices for Sampling Water from Closed Conduits
• ASTM D5847 Standard Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
• ASTM D5905 Standard Practice for the Preparation of Substitute Wastewater
• ASTM E275 Standard Practice for Describing and Measuring Performance of Ultraviolet, Visible, and Near-Infrared Spectrophotometers
• ASTM E60 Standard Practice for Analysis of Metals, Ores, and Related Materials by Molecular Absorption Spectrometry

ASTM D1252-06(2020) history

• 2020 ASTM D1252-06(2020) Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
• 2006 ASTM D1252-06(2012)e1 Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
• 2006 ASTM D1252-06(2012) Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
• 2006 ASTM D1252-06 Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
• 2000 ASTM D1252-00 Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
• 1995 ASTM D1252-95 Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water