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|  MIL-T-50009A
tatively to a 250-ml separator funnel and
sensitivity as follows:
draw off the aqueous bottom layer into a
glass-stoppered, 500-ml Erlenmeyer flask.
Wash the oil layer three times with 25 ml
portions of water, drawing off the aqueous
layer after each washing into the 500-ml
4.5.7 Apparent density. Determine the ap-
flask containing the first draw-off. To this
parent density in accordance with ASTM
flask add 5 ml of nitrobenzene, 5 ml of ferric
method D1 18254 and report the results in
ammonium sulfate indicator, and 2 ml of
g per ml.
0.02 N potassium thiocyanate. Titrate with
0.02 N silver nitrate until the indicator color
4.6 Acceptance /rejection criteria. If the
disappears and then add 5 ml excess of silver individual or composite specimen fails to
nitrate. Shake vigorously for approximately
meet the test requirements of the specifica-
5 minutes to assure complete coagulation of tion, the lot represented shall be rejected.
the silver chloride, and then back titrate
with 0.02 N potassium thiocyanate. Run a
5. PREPARATION FOR DELIVERY
blank and apply any significant corrections.
Calculate the percent chloride as follows:
5.1 Packaging.
5.1.1 Level A.
5.1.1.1 Two-pound quantity. Two pounds
w h e r e : A = milliliters of silver nitrate,
1 ounce of thickener shall be packaged in
total.
a type II hermetically sealed rectangular
can, conforming to Specification MIL-G
B = normality of silver nitrate,
10464. The can interior surfaces shall be
c=
milliliters of potassium thiocy -
coated with a l-roil thick clear phenolic or
anate.
vinyl coating. The exterior can surfaces shall
D = normality of the potassium
be coated as specified in the can specification
thiocyanate.
with color of the finish coat conforming to
color No. 34087 of Federal Standard No, 595.
W = weight of specimen in g.
4.5.6 Moisture sensitivity. Prepare and
5.1.1.2 Thirty-three and one-third pounds.
test a 2 percent gel as specified in 4.5.2.1
Thirty-three and one-third pounds 4
except that a single gel shall be prepared
ounces of thickener shall be packaged in a
from the specimen. Designate the consistency
bag conforming to type III, class 6, style B,
of this specimen as A. Take a second portion
bag number P55, of Specification PPP-B-
of approximately 75 g from the specimen
35. The bag shall have approximate dimen-
and spread it evenly over the surface on an
sions of 12 by 4 by 36 inches. After filling,
aluminum tray having an area of approxi-
closure shall be accomplished in accordance
mately 120 square inches. Place the tray in
with the appendix of the bag specification.
a humidity cabinet maintained at 8001?. and
The polyethylene bag liner shall be closed by
80-percent relative humidity for a period
heat seal.
of 15 minutes 30 seconds. Transfer the
5.2 Packing.
humidified material to a container, leaving
not more than 10 percent void, and tightly
5.2.1 Level A.
close. Prepare and test a 2-percent gel as
specified in 4.5.2.1. Designate the consistency
5.2.1.1 Two-pound quantity. Twelve cans
of this specimen as B. Calculate the moisture
6
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