New Standard from Last Update.

1. SCOPE

This standard (Part 2/Sec 1) prescribes the tetrachloromercurate/pararosaniline method for the measurement of concentration of sulphur dioxide (SO2) present in the ambient air.

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 these standards are encouraged to investigate the possibility of applying the most recent editions of the standards listed below:

IS 1070 : 1992 Reagent grade water (third revision)

IS 2303 (Part 1/Sec 1) : 2021/ISO 719 : 2020 Grading glass for alkalinity: Part 1 hydrolytic resistance of glass grains, Section 1 Determination and classification of hydrolytic resistance at 98c (third revision)

IS 4167 : 2020 Glossary of terms relating to air pollution (second revision)

IS 5182 (Part 14): 2000 Methods for measurement of air pollution Guidelines for planning the sampling of atmosphere