title: Respirator cartridge efficiency studies: VI. Effect of concentration.
abstract: The service life of organic vapor cartridges was determined for ten vapors at concentrations between 50 and 3000 ppm. The breakthrough time (tb) conformed to the empirical expression tb = aCf, where C is the concentration in ppm and a and be are constants. The average value for b at 10% breakthrough was -0.67 +/- 0.17. The service life is inversely proportional to flow rate for acetone and benzene.
mesh_terms: D000327:Adsorption; D005740:Gases; D006813:Humidity; D011482:Protective Devices / Q000592:standards*; D012134:Respiratory Protective Devices / Q000592:standards*; D012997:Solvents / Q000032:analysis*; D013997:Time Factors; D014752:Vinyl Chloride / Q000032:analysis
chemical_list: D005740:Gases; D012997:Solvents; D014752:Vinyl Chloride