ISO 4220:1983 PDF
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Ambient air — Determination of a gaseous acid air pollution index — Titrimetric method with indicator or potentiometric end-point detection
Is applicable to mass concentrations of sulfur dioxide higher than 30 g/m3. The results obtained following this procedure depend on the amounts of acid and alkaline gaseous air pollutants which are likely to be determined under the specified sampling and analytical conditions.
| Edition | 1983 |
|---|---|
| Published Date | 1983 |
| Published By | International Standardization Organisation |
| Page Count | 5 |
