STP786

    PRO-TEK Organic Vapor Air Monitoring Badges

    Published: Jan 1982


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    Abstract

    The Occupational Safety and Health Administration (OSHA) of the U.S. Department of Labor has established criteria for workers' exposure to airborne contaminants. To monitor some of these contaminants, passive monitoring badges with solid sorbents have been developed. Verification of the validity of the sampling and analytical methods has ensured that these devices meet OSHA's accuracy requirements. A protocol has been developed that provides a systematic badge validation procedure and includes a statistical evaluation of the data. The validation protocol for a specific organic vapor includes: a description of the test apparatus and equipment required, the type and number of tests to run, sampling and analysis procedures, precision and accuracy requirements, effects of environmental variables, interferences, storage stability, sorbent capacity, and the importance of independent methods for verifying test chamber concentrations. Both PRO-TEK (registered trademark of E.I. du Pont de Nemours and Co.) organic vapor air monitoring badges and charcoal tubes with constant flow pumps were used in the field to monitor benzene exposures in the range of 0.004 to 5.7 ppm. The two monitoring methods had excellent correlation.

    Keywords:

    accuracy and precision of charcoal tubes, accuracy and precision of passive monitors, benzene, charcoal tube sampling, coefficient of variation, desorption efficiency, diffusion badge, exposure chamber, gas chromatography, sampling rate, solid sorbent, standard deviation, statistical evaluation of data, time-weighted average, toxic materials, validation protocol


    Author Information:

    Kring, EV
    Applied Technology Division, E. I. du Pont de Nemours and Co., Kennett Square, Pa.

    Graybill, MW
    Applied Technology Division, E. I. du Pont de Nemours and Co., Kennett Square, Pa.

    Morello, JA
    Engineering Test Center, E. I. du Pont de Nemours and Co., Newark, Del.

    Ansul, GR
    Applied Technology Division, E. I. du Pont de Nemours and Co., Kennett Square, Pa.

    Adkins, JE
    Polymer Products Department, E. I. du Pont de Nemours and Co., Orange, Tex.

    Lautenberger, WJ
    Applied Technology Division, E. I. du Pont de Nemours and Co., Kennett Square, Pa.


    Paper ID: STP33989S

    Committee/Subcommittee: D22.04

    DOI: 10.1520/STP33989S


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