- Author
-
Mulholland, G. W.
|
Liu, B. Y. H.
- Title
- Response of Smoke Detctors to Monodisperse Aerosols.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
Minnesota Univ., Minneapolis
- Journal
-
Journal of Research of the National Bureau of Standards,
Vol. 85,
No. 3,
223-238,
May/June 1980
- Keywords
-
aerosol generators
|
aerosols
|
detector sensitivity
|
fire detectors
|
ionization detectors
|
light scattering detectors
|
particle size
|
photoelectric detectors
|
smoke detectors
- Identifiers
- detectors
- Abstract
- The response of three light scattering smoke detectors (photo-electric detectors) and three ionization smoke detectors were determined as a function of particle size and concentration for nearly monodisperse dioctyl phthalate aerosol [equation omitted]. Detailed descriptions of the aerosol generation system and the smoke detector test chamber are given. The responses of the ionization detectors were found to have a nearly linear dependence on particle size as predicted by Hosemann's theory. The ionization detectors responded to the smallest particles generated. The light scattering detectors did not respond to particles with diameters of 0.1 MU m or less and are found to have a strong dependence on particle size, the fourth to fifth power of particle diameter, for particle sizes less than 0.5 MU m.