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File: 970107_apr96_decls13_0013.txt
Subject: DUSTY AGENTS IMPLICATIONS FOR CHEMICAL WARFARE PROTECTION
Unit: XVIII CORPS
Parent Organization: ARCENT
Box ID: BX000047
Folder Title: CHEMICAL INFORMATION
Document Number: 5
Folder Seq #: 35
........ ...
SECRETEciAssnvD
DOD DTR @q"'g AST@266OZ@55-88
27 January 1988
flow through the fabric observed in chemical agents in the vapor form.
the wind tunnel experiments was much A few detectors, mainly those in the
higher than had been exnected based US inventory, are designed to respond
on classical bench-scale laboratory to liquid agents (,M-9 paper, for
instance); some are specifically in-
experiments.
tended for use in water samples
Can this hi@fier than expected air_flow (M 272). Both of these types, which
through the overgarment fabric have take advantage of a direct physical
anv effect on Drotection azainst interface between sami3le and detec-
standard a5zeits? (U) tor, could possibly resuoud to a
toxic 'agent adsorbed on to dust.
(S) There appears to be little, if Since most other detectors require
any, experimental work that @ test- vapor to reach the detection. element,
ad liquid or vapor penetration of their ability to reSDond to an agent-
the overgarment fabric with linear impregnated dust will be affected by
velocities comparable to those ob- the way in which the air is sampled.
fi-'--
tions. Basic principles of adsor-D- ter will probably not reac-@ to a
tion and filter design suggest that -dusty- agent unless the a@ent can
a filter bed (in tiis case, the inner be desorbed from the carrier (e.@...,
layer of the overgarment fabric) by heatin@.) or the dust filter does
undergoes breakthrough of a challen@e not effectively f il ter parz:ic' as
in a shorter time when t.%e flow smaller than 10 gm.
velocity throuzh the bed is in-
creased. At higher flow rates, (C) Detectors that rely on wet c@e---
adsorption kinetics be.-in to dominate istry (i.e., detection tubes) as the
over adsorption C-'aDacitf in shallow detection means would more likely be
bed designs. With the flows observed able to detect an agent adsorbed onto
in the wind tunnel exceeding ecr)ected a carrier due to the direct contacv
flows by an order of magnitude, a of rea@ents with the dusz7
f a@ent.
significant reduction in suit 14-@'-- Even these require that the agent be
is possible. A careful experimental airborne when sampled rather then
evaluation of fabric performance deposited on a surface. In either
against li(3uids and vapors as a case, detectors such as the UK or US
f
unction of linear flow through @ie chemical agent monitor (CAM), which
fabric should be considered in order rely on the agent vapor, may not be
dsorbed onto
windy environment on suit life. a carrier. Standoff detectors cur-
renrly under development will have
Can currently fielded detectors to be able to disc--imirlate between
Tetect azents disseminated in dust battlefield dust or smoke and dusty
form (U)? agents in order to be effective. The
Soviets' greater reliance on wet-
(C) Most Soviet and NATO CW agent chemistry,-based detectors may give
detectors are designed to detect them an advantage in detecting dusty
NOT RELF.ASABLE TO FORF.IGN NATIONALS
9 L)ki@ IDVL 52.00.,j
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Document 22 f:/Week-15/BX000047/CHEMICAL INFORMATION/dusty agents implications for chemical warfare p:010297184311120
Control Fields 17
File Room = apr96_declassified
File Cabinet = Week-15
Box ID = BX000047
Unit = XVIII CORPS
Parent Organization = ARCENT
Folder Title = CHEMICAL INFORMATION
Folder Seq # = 35
Subject = DUSTY AGENTS IMPLICATIONS FOR CHEMICAL WARFARE P
Document Seq # = 5
Document Date =
Scan Date =
Queued for Declassification = 01-JAN-1980
Short Term Referral = 01-JAN-1980
Long Term Referral = 01-JAN-1980
Permanent Referral = 01-JAN-1980
Non-Health Related Document = 01-JAN-1980
Declassified = 02-JAN-1997