Passive Badge Assessment for Long-term, Low-level Air Monitoring on Submarines: Chamber Validation
Abstract
Exposure chambers were designed and engineered for validating passive diffusion badges for long-term atmospheric monitoring onboard U.S. Navy nuclear submarines. This a validation study of the reproducibility among five identical chambers. Long-term sampling was evaluated for a 21-day period by comparing the response of a passive badge to an active tube sampling method while they were simultaneously exposed to homogeneous test vapors. The results provided by the five exposure chambers were compared to establish a reproducible correlation among them. Reproducibility among both active sampling tubes and passive badges was demonstrated. The badges continued to accumulate the analyte for the entire 21-day sampling period. Accumulation of the analyte onto tubes was consistently about 40% higher than accumulation onto badges. The average relative standard deviation of tubes was 5.7%. The average relative standard deviation of badges was 7.0%. Average RSDs less then 10% indicate that the chambers can be used interchangeably and can provide equivalent, reproducible results. The chambers are recommended for future use in analyte-specific, passive badge validation testing.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 31, 2005
- Accession Number
- ADA440152
Entities
People
- David A Kidwell
- Kimberly P. Williams
- Susan L. Rose-Pehrsson
Organizations
- United States Naval Research Laboratory