Revised Standard from Last Update.

1. SCOPE

This standard (Part 23) prescribes the potentiometric and indicator methods for determination of alkalinity. These methods are applicable to determine alkalinity in water and wastewater in the range of 0.50 mg/l to 500 mg/l alkalinity as CaCO3. The upper range may be extended by dilution of the original sample.

2. REFERENCES

The standards listed below 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 the standards listed below:

IS 3025 (Part 21) : 2009 Methods of sampling and test (physical and chemical) for water and wastewater: Part 21 Hardness (second 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 (Part 1) : 2021 Water Quality – Sampling : Part 1 Guidance on the design of sampling programmes and sampling techniques

IS 17614 (Part 3) : 2021 Water Quality – Sampling : Part 3 Preservation and handling of water samples