The Effect of Humidity on the Collection Efficiency for Oxygenated Compounds Absorbed on Activated Charcoal
Abstract
The Effect of Humidity on the Collection Efficiency for Oxygenated Compounds Adsorbed on Activated Charcoal. High levels of relative humidity adversely affect industrial hygiene sampling on charcoal tubes. Although some recent research has documented reduced collection efficiency due to humidity effects, much of the previous research has centered on the effect of humidity on breakthrough times for charcoal beds and respirator cartridges. This research was designed to incorporate the possible effect of compound type within previously documented humidity and concentration effects. Charcoal tubes were exposed to four solvents individually at two levels of humidity and two solvent concentrations. The tubes were first exposed to a zero containment concentration at a set humidity level of 50 or 80% for two hours.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1990
- Accession Number
- ADA227659
Entities
People
- Robert B. Walton
Organizations
- Air Force Institute of Technology