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JSIR Vol.71 [2012] >
JSIR Vol.71(11) [November 2012] >
| Title: | Vapour breakthrough behaviour of carbon tetrachloride - a simulant for chemical warfare agent on ASZMT carbon |
| Authors: | Srivastava, Avanish Kumar
Shah, Dilip
Saxena, Amit
Mahato, T H
Singh, Beer
Verma, A K
Shrivastava, Smriti
Anuradha |
| Keywords: | Active carbon
ASZMT carbon
Impregnation
Carbon tetra chloride vapour
Breakthrough time |
| Issue Date: | Nov-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | ASZMT (Cu, Ag, Zn, Mo, TEDA impregnated) carbon was
prepared by impregnation of active carbon with ammonical salts of Cu (II), Ag
(I), Zn (II), Mo (VI) and TEDA using incipient wetness technique. Thereafter,
ASZMT carbon was characterized using scanning electron microscopy, atomic
absorption spectroscopy, thermogravimetry and surface characterization
techniques. The ASZMT carbon was evaluated under dynamic conditions against
carbon tetrachloride vapour that was used as a simulant for the persistent
chemical warfare agents for testing breakthrough times of filter cartridges and
canisters of gas masks in the National Approval Test of Respirators. The effect
of carbon tetrachloride concentration, test flow rate, temperature and relative
humidity
on the breakthrough behaviour of the ASZMT carbon for
CCl4 vapour has also
been studied. The study clearly indicated that the ASZMT carbon provided
adequate protection against carbon tetrachloride vapours. The breakthrough time
decreased with the increase of the carbon tetrachloride concentration and flow
rate. The variation in temperature and relative humidity did not significantly
affect the breakthrough behaviour of ASZMT carbon at high vapour concentration
of carbon tetrachloride whereas breakthrough time of ASZMT carbon reduced by an
increase of relative humidity at low carbon tetrachloride vapour concentration. |
| Page(s): | 748-756 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.71(11) [November 2012]
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