Evaporation of Chemical Warfare Agent HD on Glass Surface Under Various Environmental Conditions

Abstract

Environmental fate of the chemical warfare agents (CWA) is receiving increasing attention, since the evaluation of the contact or vapor hazard is the critical input for models employed to support decisions to determine the individual as well as collective protection level of the combatants. Once released, CWA might evaporate and be carried by the wind, sorb into the surface material, or both. This can be a function of not only CWA, its dropsize and the surface substrate but also the environmental factors such as temperature, relative humidity, and wind speed. This work was carried out to establish a better understanding of the influence of each factor to the fate of CWA. Two different microbalances, configured in a wind-tunnel geometry, were employed to measure the weight loss of HD as a function of time glass surface under various environmental conditions.

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Document Details

Document Type
Technical Report
Publication Date
Nov 15, 2004
Accession Number
ADA449488

Entities

People

  • Kenneth B. Sumpter
  • Robert Nickol
  • Seok H. Hong
  • Wendel Shuely

Organizations

  • Edgewood Chemical Biological Center

Tags

Communities of Interest

  • Air Platforms
  • Counter WMD

DTIC Thesaurus Topics

  • Aluminum
  • Body Weight
  • Cargo Aircraft
  • Chemical Warfare
  • Chemical Warfare Agents
  • Differential Thermal Analysis
  • Evaporation
  • Flow Rate
  • Glass
  • Humidity
  • Materials
  • Microbalances
  • Silica Glass
  • Thermal Analysis
  • Transport Aircraft
  • Warfare
  • Wind Tunnels

Readers

  • Agricultural Chemistry/Soil Science
  • Atmospheric Remote Sensing.
  • Critical Infrastructure Protection in CBRN and WMD Threats.