http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
accuracy of three passive dosimeters as compared to charcoal tubes
viii, 62 leaves : illustrations ; 28 cm.
+/- 25% at the 95% confidence level, are thought by some to
12). However, there are several new brands of passive
accuracy standard of +/-25% at the 95% confidence level (1-
active movement of air through a sampler (1). These
analyses show that passive badges tend to yield higher
Association (AIHA) accredited laboratory and analyzed for
at a Gulf Coast oil refinery and were worn for approximate
badges and tubes were sent to an American Industrial Hygiene
benzene, toluene, xylene, normal hexane (n-hexane), and total
charcoal tubes. This project compared the accuracy of three
concentrations of contaminants. The results yielded would
data was conducted to determine if there were significant
differences between the passive badges and the charcoal tube
different brands of passive dosimeters: the 3M 3500 OVM, the
diffusive sampler is a device which is capable of taking
dosimeters on the market today that may prove to be more
dosimeters, although well within the National Institute of
eight hour shifts. This experiment was replicated twenty-
for the five analytes of concern. Scatter plots were
four times for a total of twenty-five groups of samples. The
further investigate the accuracy of passive dosimeters.
here. More extensive research is recommended in this area to
in a controlled laboratory environment using known
indicate the true accuracy of each monitor, not just a
lightweight, inexpensive, and easy to use. A passive or
Monitor (OVM). It has been found to be well within the NIOSH
monitoring airborne contaminants because they are
monitors mirrored the results of the charcoal tube. These
Occupational Safety and Health (NIOSH) accuracy standard of
organic vapors (TOV). A statistical analysis of the reported
outcomes than the charcoal tube for the analytes studied
Passive monitors have become increasingly popular for
precise than the 3M 3500 OVM when comparing the results to
primarily with the accuracy of the 3M 3500 Organic Vapor
rate controlled by a physical process, such as diffusion
samplers. Previous research on passive dosimeters dealt
samples of gas or vapor pollutants from the atmosphere at a
Sampling with the various monitors should next be conducted
SKC Series 575-001, and the Gilian Traceair OVM-2 to charcoal
through a static air layer, but which does not involve the
tubes. The four devices were placed side-by-side on workers
utilized to estimate how closely the results of the passive
yield inferior results to standard pump and sorbent tube
Issued also on microfiche from Lange Micrographics.