title: High purity fibrous air sampling media.
abstract: Interest in measurement of low concentrations of metal levels in suspended particulate matter has generated needs for high purity, low background filters. Several new types of filters are discussed with high purity compositions including glass fiber filters, fluorocarbon membranes and fabric-supported membrane filters. Air collection efficiencies are presented along with comparative analysis.
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D005374:Filtration / Q000295:instrumentation*; D005898:Glass; D011791:Quartz; D013458:Sulfur Dioxide
chemical_list: D000393:Air Pollutants; D013458:Sulfur Dioxide; D011791:Quartz