TM 10-3510-208-12
organic chelating agent is tetrasodium salt of en-
(10) Formula VI. Formula VI is used to
thylene diamine tetraacetic acid which is available
decontaminate clothing that has been radioactive-
commercially as Versene, Nullapon, or Se-
ly contaminated above the maximum tolerance
questrene S. T. When hard water is used, the
level. For woolen clothing, the formula must be
amount of chelate should be increased at the rate
changed to use type II powder detergent with
of 1 ounce chelate per 83 grains of water hardness.
water temperature not more than 100F/23C.
An equal weight of sodium hexametaphosphate or
Also, the washer must be stopped during filling
sodium tetraphosphate may be substituted for the
and draining. For white clothing or bedding, a
organic chelating agents.
bleaching agent should be used. A recommended
Water
Level
Time
Temperature
F C
Operation
in.
min.
Supplies
Suds
Detergent, type I, 6 oz
90/17.5
6
5
Acid
140/45
11
Citric acid crystals, 4 lb
5
Acid
140/45
Citric acid crystals, 2 lb
11
5
140/45
Chelating agent, lb dry weight
Chelate
5
11
140/45
Chelating agent, 12 lb dry weight
Chelate
5
11
.................................
140/45
Rinse
3
11
.................................
120/34
Rinse
3
11
Sour
Tap water
Laundry sour, 1 1/2 oz (use equal
5
11
parts of sodium silicoflouride and
sodium acid flouride)
(11) Formula VII. Formula VII is used to
the washer. Cotton and woolen items must not be
launder and decontaminate unimpregnated cotton
put in the same wash load. When items such as
and woolen items that have been chemically or
belts, webbing, canteen covers, and pack carriers
biologically contaminated. Woolen and Cotton
are washed, the time of the first suds should be in-
Items. Detergent and super tropical bleach must
creased to 15 minutes.
be mixed together in water before they are put in
Water
Level
Time
Temperature
Operation
in.
min.
`F "C
Supplies
Suds
11
90/17.5
5
Detergent, type II, 6 O Z; decon-
taminating agent super tropical
bleach (STB), 2.5 lb
Suds
11
5
90/17.5
Detergent, type II, 4 oz
..................................
Rinse
11
2
90/17.5
..................................
Rinse
11
2
90/17.5
Rinse
11
2
90/17.5
Sour, 2 oz
2-24.3
Change 3