agents or poisonous industrial wastes, is detected,
every effort must be made to find an
uncontaminated water source before considering
treating and using water known to be
When an uncontaminated source of supply is
not available for use, permission must be secured
from proper medical authority to proceed with
treatment of the contaminated water.
Water is considered CONTAMINATED AND
UNSAFE for treating if one or more of the
following results are obtained from competent
Arsenic test. . . . . . . . . . . . . . positive
Mustard test . . . . . . . . . . . . . positive
pH test . . . . . . . . . . . . . .pH below 6
Chlorine demand test . . . . . . . . . positive
Nerve agent test . . . . . . . . . . . positive
Taste and odor test . . . . . . . . . . positive
Water is considered safe for treatment by the
usual methods if the pH is above 6.0 and all other
contamination tests are negative.
When contamination by a CBR (chemical,
biological, radiological) agent has been determined
to be present in your water source, the Reverse
Osmosis Water Purification Unit (ROWPU) may
The ROWPU will successfully remove 99
percent of CBR contamination from a water
source. A post-treatment system in conjunction
with the ROWPU will remove a total of 99.9
percent of CBR contamination.
The 600-gph ROWPU post-treatment system
consists of two CBR cylinders. One cylinder is for
nuclear and the other is for chemical. The types of
contamination present will determine what
cylinder you should use. The CBR cylinder
filters are capable of decontaminating water
for up to 100 operating hours. The cylinder
marked nuclear contains resin beads that
absorb certain ions present on the nuclear
battlefield. The cylinder marked chemical
contains activated carbon that absorbs agents
found on the chemical battlefield.
Nuclear Agent Removal
The ROWPU removes the majority of ions
wit bout post treatment. The reverse osmosis
(RO) removal characteristics for nuclear
warfare agents are as follows:
. 95.5% of iodine, leaving the nuclear
cylinder to remove 4.5%.
. 99.7% of strontium, leaving the nuclear
cylinder to remove .2%
. 98.% of cesium, leaving the nuclear
cylinder to remove 1.2%.
Chemical Agent Removal
The ROWPU also removes large amounts
o f c h e m i c a l a g e n t s . R O r e m o v a l
characteristics for various chemical warfare
agents are as follows:
l GB-99.1%, leaving the chemical
cylinder to remove .7%.
l VX-99.9%, leaving the chemical
cylinder to remove .1%.
. BZ-99.9%, leaving the chemical
cylinder to remove .1%.