IS 3025 : Part 36 : 2023 Methods of Sampling and Test (Physical and Chemical) for Water and Wastewater - Part 36 Ozone, Residual
1 SCOPE
This standard (Part 36) prescribes the following methods for determination of ozone, residual in water and wastewaters:
a) Titrimetric method (minimum detectable concentration by this method is 30 ug/l); and
b) Indigo colorimetric method (practical lower limit for residual concentration is 10 ug/l to 20 ug/l).
2 REFERENCES
The standards given below contain provisions which through reference in this text constitute provisions of this standard. At the time of publications, 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 editions of these standards:
| IS No. | Title |
| IS 2263 : 1979 | Methods of preparation of indicator solutions (first revision) |
| IS 7022 (Part 1) : 1973 | Glossary of terms relating to water, sewage and industrial effluents: Part 1 |
| IS 7022 (Part 2) : 1979 | Glossary of terms relating to water, sewage and industrial effluents: Part 2 |