Evaluation of teflon permeation tubes for use with sulfur dioxide.
D000397:Air Pollution; D003124:Colorimetry; D005374:Filtration; D005465:Fluorocarbon Polymers; D010539:Permeability; D013458:Sulfur Dioxide / Q000032:analysis*
D005465:Fluorocarbon Polymers; D013458:Sulfur Dioxide