Significance and Use
Dissolved oxygen is required for the survival and growth of many aquatic organisms, including fish. The concentration of dissolved oxygen may also be associated with corrosivity and photosynthetic activity. The absence of oxygen may permit anaerobic decay of organic matter and the production of toxic and undesirable esthetic materials in the water.
1.1 These test methods cover the determination of dissolved oxygen in water. Three test methods are given as follows:
|Test Method ATitrimetric Procedure–|
|>1.0|| 8 to 15|
|Test Method BInstrumental Probe Procedure|
|0.05 to 20||16 to 25|
|Test Method CInstrumental Probe Procedure|
|0.05 to 20||26 to 29|
1.2 The precision of Test Methods A and B was carried out using a saturated sample of reagent water. It is the user's responsibility to ensure the validity of the test methods for waters of untested matrices.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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 a specific precautionary statement, see Note 17.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1066 Practice for Sampling Steam
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
D2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
D3370 Practices for Sampling Water from Closed Conduits
D5847 Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
E200 Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis
analysis; dissolved oxygen; frequency domain; lifetime-based; luminescence; probe; titrimetric; water ; Instrumental measurement--water; Oxygen content; Colorimetric analysis--water; Dissolved oxygen (DO); Inorganic compounds--water
ICS Number Code 13.060.50 (Examination of water for chemical substances)
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Citing ASTM Standards
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