|Document ID (ISN)||46733|
|Convention or series no.
||Arbete och Hńlsa 1984:47
||Hallberg B.O., Rudling J., Hultman A., Hultengren M.
||Filter method for active and passive sampling of sulfur dioxide in air
||En metod f÷r aktiv och passiv provtagning av svaveldioxid i luft med impregnerade filter [in Swedish]|
||Arbetarskyddsstyrelsen, Publikationsservice, 171 84 Solna, Sweden, 1984. 21p. Illus. 18 ref.
||Sulfur dioxide is collected on filters impregnated with glycerol/potassium hydroxide solution. Sampling can be carried out with a pump or by using either of 2 different passive monitors available on the market. Analysis is performed by ion chromatography. These methods were evaluated and compared to a colorimetric air monitoring badge system (ProTek). Laboratory tests showed that the accuracy of the filter methods is good and that samples can be stored. Water vapour does not interfere, but hydrogen sulfide does cause a minor decrease in recovery. ProTek displays high accuracy, but storage tends to decrease recovery. Field tests in a steel rolling mill and a sulfite pulp mill showed fairly good correspondence between the methods.
||passive dosimeters; sulfur dioxide; determination in air; sampling and analysis
||rolling mills; ion chromatography; description of technique; pulp and paper industry
||E - Books, reports, proceedings
||Toxic and dangerous substances
|Broad subject area(s)
||Inorganic sulfur compounds