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This report presents findings regarding laboratory-tested SCSRs in the tenth phase of testing,
from July 2004 to March 2006. The SCSRs were tested on a breathing and metabolic simulator
and on a human subject walking on a treadmill. The tests performed in this study are not the
tests used for certification (Title 42 of the Code of Federal Regulations, Part 84). The tests
performed in this study continue until the apparatus are empty to enable comparison of new
versus deployed apparatus. The method for obtaining deployed SCSRs for this evaluation was
not a random selection from the deployed population of SCSRs. We sought older apparatus with
visible environmental impact rather than newer apparatus, and we attempted to sample a wide
range of deployment modes. Although the results of these tests are useful for observing
performance of the tested SCSRs, they are not representative of all deployed SCSRs. This report
is the last of 10 report phases begun in 1982. Previous reports describe phases 1 through 9
[Kyriazi et al. 1986; Kyriazi and Shubilla 1992, 1994, 1996, 2000, 2002, 2004, 2006] A new
evaluation protocol, with revised sampling strategies, test methods, and reporting procedures, is
currently being designed to enhance the applicability of the results.
Author(s): | NIOSH |
Reference: | Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2008-138, Information Circular 9675, 2008 Jun; :1-27 |
2008-138 (PDF, 1683 KB)
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