IS 3025 : Part 42 : 2024

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.