IS 3025 : Part 42 : 2024 Methods of Sampling and Test (Physical and Chemical) for Water and Wastewater - Part 42 Copper
1 SCOPE
1.1 This standard (Part 42) prescribes the following methods for determination of copper in water and wastewater:
a) Neocuproine method (method is applicable in the concentration range of 0.05 mg/l to 5 mg/l of copper);
b) Bathocuproine method (method is applicable in the concentration range of 0.02 mg/l to 5 mg/l of copper);
c) Atomic absorption method (direct) (method is applicable in the concentration range of 0.02 mg/l to 5 mg/l of copper);
d) Atomic absorption method (chelation extraction) (method is applicable in the concentration range of 0.002 mg/l to 0.5 mg/l of copper);
e) Differential pulse anodic stripping voltammetry method; and
f) Inductively coupled plasma spectrometry method.
1.2 The choice or the method depends upon the concentration range and interference. When the concentration levels are below 500 g/l, preconcentration is carried out either by chelation and extraction prior to atomic absorption spectrophotometer (AAS) or by depositing as in differential pulse anodic stripping voltammetry method. For dissolved copper content filtration through 0.45 ìm membrane filter is required.
2 REFERENCES
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 editions of these standards.
| IS No. | 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 term relating to water, sewage and industrial effluents: Part 1 |
| IS 7022 (Part 2) : 1979 | Glossary of term 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 programmes and sampling techniques |
| (Part 3) : 2021/ISO 5667-3 : 2018 | Preservation and handling of water samples |