Stain length passive dosimeters

Journal Article · Mon Nov 01 00:00:00 EST 1982 · Am. Ind. Hyg. Assoc. J.; (United States)

DOI:https://doi.org/10.1080/15298668291410639· OSTI ID:6089517

Sefton, M V; Kostas, A V; Lombardi, C

Passive dosimeters with instant readout capability have been devised by combining the principles of a gas indicator tube with membrane control of mass transfer. The membrane controls the diffusion of the gas or vapor to the reagent impregnanted support where it reacts to produce a stain. Results with H/sub 2/S and benzene monitors demonstrated that time weighted average concentration of ambient gas or vapor can be measured accurately and precisely by following the movement of the colored stain in the specially prepared and calibrated indicator tube. The 95% confidence interval of such measurements at the TLV (80 ppm-hrs) is +/- 20% for H/sub 2/S and +/- 15% for benzene, well within NIOSH limits of acceptability.

• Research Organization: Univ. of Toronto, Ontario, Canada
• OSTI ID: 6089517
• Journal Information: Am. Ind. Hyg. Assoc. J.; (United States), Vol. 43:11
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHEMICAL DOSEMETERS
DESIGN
BENZENE
DIFFUSION
STAINS
SULFURIC ACID
VAPORS
AROMATICS
DOSEMETERS
FLUIDS
GASES
HYDROCARBONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MEASURING INSTRUMENTS
ORGANIC COMPOUNDS
440102* - Radiation Instrumentation- Radiation Dosemeters