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Breakthrough behaviour of NBC canister against carbon tetrachloride: a simulant for chemical warfare agents
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  • Journal title : Carbon letters
  • Volume 13, Issue 2,  2012, pp.109-114
  • Publisher : Korean Carbon Society
  • DOI : 10.5714/CL.2012.13.2.109
 Title & Authors
Breakthrough behaviour of NBC canister against carbon tetrachloride: a simulant for chemical warfare agents
Srivastava, Avanish Kumar; Shah, D.; Mahato, T.H.; Singh, Beer; Saxena, A.; Verma, A.K.; Shrivastava, S.; Roy, A.; Yadav, S.S.; Shrivastava, A.R.;
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 Abstract
A nuclear, biological, chemical (NBC) canister was indigenously developed using active carbon impregnated with ammoniacal salts of copper (II), chromium (VI) and silver (I), and high efficiency particulate aerosol filter media. The NBC canister was evaluated against carbon tetra chloride () vapours, which were used as a simulant for persistent chemical warfare agents under dynamic conditions for testing breakthrough times of canisters of gas masks in the National Approval Test of Respirators. The effects of concentration, test flow rate, temperature, and relative humidity (RH) on the breakthrough time of the NBC canister against vapour were also studied. The impregnated carbon that filled the NBC canister was characterized for surface area and pore volume by adsorption-desorption isotherm at liquid nitrogen temperature. The study clearly indicated that the NBC canister provides adequate protection against vapours. The breakthrough time decreased with the increase of the concentration and flow rate. The variation in temperature and RH did not significantly affect the breakthrough behaviour of the NBC canister at high vapour concentration of , whereas the breakthrough time of the NBC canister was reduced by an increase of RH at low vapour concentration.
 Keywords
activated carbon;NBC canister;impregnation;carbon tetra chloride vapour;breakthrough time;
 Language
English
 Cited by
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