MIL --- DTL --- 3691E
A. After sonication is completed, place a clean stirring bar into the sample and move the
sonicated sample to a stirrer set to medium speed to keep all of the particles in the liquid in
suspension.
B. Set the laser diffraction particle size analyzer for MIE calculation with a Relative Re-
fractive Index at 1.50 --- .010.
C. Using a pipette transfer a 7.5 +/ --- 0.5 mL sample from from the beaker into the reser-
voir with the system circulating at a slow speed until proper particle loading is attained in the
instrument.
D. Run the sample immediately. Report the mean particle size as well as the percentage
below 10 microns for the sample.
4.4.3 Volatile matter. Weigh to the nearest milligram approximately 5g of the specimen in
a tared, glass --- stoppered weighing bottle. Remove the stopper and dry to constant weight at 70
to 75 C. Cool to room temperature in a desiccator and weigh. Calculate the percent by weight
volatile matter as follows:
Percent volatile matter = 100(A - B)∕W
where: A = Weight of specimen and stoppered bottle before heating in grams,
B = Weight of specimen and stoppered bottle after heating in grams, and
W = Weight of specimen before heating in grams.
4.4.4 Heavy metal contamination. Determine the heavy metals content of the sample in
accordance with EPA Method 6010B.
4.4.5 Apparent density. Determine the apparent density in accordance with ASTM D 1895,
Method A, except that the sample shall be dried as specified in 4.4.3 prior to testing.
4.4.6 Dextrin content. Verify the dextrin content by certification. The certification shall in-
clude the dye density before adding the dextrin, the amount of dextrin used and the final density
after addition of the dextrin.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified
in the contract or order (see 6.2). When actual packaging of materiel is to be performed by DoD
or in --- house contractor personnel, these personnel need to contact the responsible packaging
activity to ascertain requisite packaging requirements. Packaging requirements are maintained
by the Inventory Control Point's packaging activities within the Military Service or Defense
Agency, or within the military service's system commands. Packaging data retrieval is available
from the managing Military Department's or Defense Agency's automated packaging files,
CD --- ROM products, or by contacting the responsible packaging activity.
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