Dissemination of Solid and Liquid BW Agents
Abstract
Information on the properties of powders, both biological simulants (Sm and Bg) and non-biological simulants (such as dried egg albumin and cornstarch), aided in the development of the E-41 spray tank for the line-source dissemination of dry solid BW agents. Tensile strength of powders as a function of bulk density and particle size was studied, using the segmented column method. The sliding-disk shear-strength method was used to measure shear characteristics of a number of powders. A methods study was made to determine the relative merits of preshearing or not preshearing the powder prior to the shear test. Surface area of powders was measured by the BET absorption method and a mathematical determination of microspore structure of powders was made from these data. Effects of electrostatic charge and humidity conditions upon aerosol formation and decay were studied with results sufficiently consistent to define the operating range of relative humidity. Storage of compacted Sm samples was continued with viability assays being made on 2-month and 4-month samples. There was no significant difference between compacted and uncompacted Sm.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 24, 1963
- Accession Number
- AD0346750
Entities
People
- G. R. Whitnah