Record Display for the EPA National Library Catalog
RECORD NUMBER: 32 OF 32| Main Title | Use of Sorption Tubes to Sample Air for Sulfur Dioxide Determinations (Primenenie Sorbtsionnykh Trubok dlya Otbora Prob Vozdukha pri Opredelenii Dvuokisi Sery). | |||||||||||
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| Author | Volberg, N. Sh. ; Sharikova., O. P. ; | |||||||||||
| CORP Author | Environmental Protection Agency, Research Triangle Park, N.C. Translation Services Section. | |||||||||||
| Year Published | 1975 | |||||||||||
| Report Number | EPA-TR-76-279; | |||||||||||
| Stock Number | PB-258 830-T | |||||||||||
| Additional Subjects | Sulfur dioxide ; Gas analysis ; Chemisorption ; Adsorption ; Gas sampling ; Ethylene glycol ; Glycerol ; USSR ; Translations ; Air pollution detection | |||||||||||
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| Collation | 14p | |||||||||||
| Abstract | A method for sampling air in a sorption tube to determine SO2 is proposed. Glass powder (grain sizes 1-2mm) impregnated with a 2.5% solution of potash containing a 15% non-drying organic additive is recommended for the sorbent. The efficiency with which sorption tubes trap sulfur dioxide when the air aspiration rate is 4 liters/minute is 98-99%. The advantages of sorption tubes over liquid absorption instruments with a porous glass tile include the possibility of passing large volumes of air, compactness, simplicity of manufacture, possibility of sampling air at below freezing temperatures, and low hydrodynamic resistance. |