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A Variable Dosage Spray Tower

Published online by Cambridge University Press:  31 May 2012

A. P. Randall
A. P. Randall
Affiliation:
Chemical Control Section, Department of Forestry, Ottawa, Ontario
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Extract

A spray tower apparatus was developed to emit a constant volume of a solution onto a moving belt of chromatographic paper. A metering and fluid mixing device operating on the principle of continual dilution enables an exponentially varying spectrum of chemical dosages to be sprayed onto the paper strip. The degree of deposit and concentration per unit area on the paper can be altered by nozzle setting and adjustment of the linear speed of the paper strip. The excess spray droplets are removed from the spray chamber by vacuum control.

Type
Articles
Information
The Canadian Entomologist , Volume 96 , Issue 1-2 , February 1964 , pp. 140
Copyright
Copyright © Entomological Society of Canada 1964

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