title: Field evaluation of selected monitoring methods for phosgene in air.
abstract: Four selected methods have been evaluated and field tested as candidates for a specific, continuous procedure for monitoring phosgene in air at or below concentrations of 0.05 ppm. The methods evaluated were automated colorimetry, gas chromatography, infrared spectrophotometry and a recently developed paper tape monitor. A standard manual colorimetric procedure was used as a reference method. The paper tape, infrared and automated gas chromatographic techniques most closely fulfilled the criteria set forth for an "ideal", selective, continuous procedure for phosgene.
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000395:Air Pollutants, Occupational / Q000032:analysis*; D002849:Chromatography, Gas; D003124:Colorimetry / Q000379:methods*; D005069:Evaluation Studies as Topic; D008722:Methods; D010705:Phosgene / Q000032:analysis*; D013055:Spectrophotometry, Infrared
chemical_list: D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D010705:Phosgene