IS 3025 : Part 38 : 2025 Methods of Sampling and Test (Physical and Chemical) for Water and Wastewater - Part 38 Dissolved Oxygen
1 SCOPE
This standard (Part 38) prescribes the following methods for determination of dissolved oxygen in water and wastewater:
a) Titrimetric method;
b) Electrometric method; and
c) Optical-Probe Method (This method is applicable to waters containing 0.05 mg/l to 20.00 mg/l DO)
2 REFERENCES
The standards given below contain provisions which, through reference in this text, constitute provision of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of these standards:
| IS No. | Title |
| IS 7022 | Water related - Glossary of terms |
| (Part 1) : 2024 | Water, sewage and industrial effluents (first revision) |
| (Part 2) : 2024 | Water supply and sewerage (first revision) |
| IS 17614 | Water quality sampling |
| (Part 1) : 2025/ISO 5667-1 : 2023 | Guidance on the design of sampling programmes and sampling techniques (first revision) |
| (Part 3) : 2024/ISO 5667-3 : 2024 | Preservation and handling of water samples (first revision) |