IS 3025 : Part 45 : 2024 Methods of Sampling and Test (Physical and Chemical) for Water and Wastewater - Part 45 Sodium and Potassium
1 SCOPE
This standard (Part 45) prescribes following five methods for determination of sodium and potassium in water and wastewater:
a) Flame emission photometric method using either a flame photometer or an atomic absorption spectrophotometer in the flame emission mode;
b) Atomic absorption spectrometric method using an atomic absorption spectrophotometer in flame absorption mode (0.20 mg/l to 4.0 mg/l for potassium and 0.20 mg/l to 3.0 mg/l for sodium);
c) Gravimetric method for determination of sodium and colorimetric method for determination of potassium;
d) Determination of potassium using Ionselective electrode method; and
e) Inductively coupled plasma spectroscopy for determination of sodium and potassium.
2 REFERENCE
The standards listed in Annex A contain provisions, which through reference in this text, constitute provisions 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. | IS Title |
| IS 1070 : 2023 | Reagent grade water - Specification (fourth revision) |
| IS 3025 | Methods of sampling and test (physical and chemical) for water and wastewater: |
| (Part 2) : 2019/ISO 11885 : 2007 | Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES) (first revision) |
| (Part 65) : 2022/ISO 17294-2 : 2016 | Application of inductively coupled plasma mass spectrometry (ICP-MS) - Determination of selected elements including uranium Isotopes (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 |
| IS 17614 | Water quality - Sampling: |
| (Part 1) : 2021/ISO 5667-1 : 2020 | Guidance on the design of sampling programmers and sampling techniques |
| (Part 3) : 2021/ISO 5667-3 : 2018 | Preservation and handling of water samples |