CAUTION
WARNING
TM 5-6630-215-12
Barium Chloride Reagent.
Keep away from children.
For test purposes only, poison.
If swallowed,
call a physician at once.
Give patient a table-
spoonful of Epsom Salts in a glass of water.
Induce vomiting with plenty of warm salt water.
(1 tablespoon of salt per glass). Repeat until
vomit is clear.
Sulfate Indicator Powder.
Caution,
for test
purposes only.
Not for internal use.
Keep away
from children.
Phosphates react similarly to sulfates in the
Procedure A test which follows, therefore if
present, would cause an erroneous result.
Use
Procedure A if it is known that phosphates are
not present (rain water in a cistern complex,
etc.).
If phosphate presence is unknown or sus-
pected, use Procedure B which nullifies the
phosphate interference.
As a check or if there
is a need for phosphate determination, run both
procedures.
Both results should be similar if
phosphates are not present.
If Procedure A reads
higher than B, phosphates are present in the
amount of difference.
NOTE
Hold dropper vertical in use and do not allow
dropper to touch container when adding droplets.
(2) 0-750 mg/l range. Procedure A - for waters that do not
contain phosphate.
(a) Rinse the 25 ml graduated cylinder with the water being
tested and fill to the 10 ml mark.
(b) Add one drop of phenolphthalein indicator solution. If
the sample turns red, add hydrochloric acid dropwise until the red
color disappears.
If the sample remains colorless when phenolph-
thalein is added, do not add hydrochloric acid.
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