title: Tentative method of analysis for sulfur dioxide content of the atmosphere (colorimetric). 42401-0169T.
mesh_terms: D000397:Air Pollution / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D002713:Chlorine; D003124:Colorimetry; D004492:Edetic Acid; D005557:Formaldehyde; D006863:Hydrogen-Ion Concentration; D007455:Iodine; D008628:Mercury; D008722:Methods; D012394:Rosaniline Dyes; D013048:Specimen Handling; D013053:Spectrophotometry; D013447:Sulfites; D013451:Sulfonic Acids; D013458:Sulfur Dioxide / Q000032:analysis*; D013885:Thiosulfates
chemical_list: D012394:Rosaniline Dyes; D013447:Sulfites; D013451:Sulfonic Acids; D013885:Thiosulfates; D013458:Sulfur Dioxide; D005557:Formaldehyde; D002713:Chlorine; D007455:Iodine; D004492:Edetic Acid; D008628:Mercury