MIL-DTL-248D
batch and independently subjected to the tests depicted in 4.4.1 and 4.4.3 through 4.4.9. In
addition, the test depicted in 4.4.2 shall be performed on individual samples obtained from ten
percent of the number of boxes in each batch. If any sample fails to meet any test requirement,
the batch represented by the sample shall be rejected.
4.3.3.3 Sampling for Type III (reclaimed) TNT. Lot formation shall be in accordance
with 4.3.1, lot formation. Sampling for those tests not specified by the following subparagraphs
shall be in accordance with 4.3.3.1 or 4.3.3.2.
4.3.3.3.1 Flake thickness. 100 flakes shall be collected from each day's operation.
Samples will be collected throughout the day with a minimum of 10 flakes collected from each
hour's operation. These samples will be tested in accordance with 4.4.8.
4.3.3.3.2 Moisture content. TNT flakes shall be sampled and tested for mois ture content
thirty minutes after start- up of flaking operations and again thirty minutes prior to shut-down.
Moisture tests shall be conducted in triplicate. If the flaking operation goes on longer than an 8
hour normal shift, additional sampling for mo isture test shall be performed for each additional 4
hour interval of flaking operation.
4.3.3.3.3 Explosive safety and performance tests. One independent (composite) sample
of appropriate size (approximately 20 lbs) shall be obtained from each week's TNT reclaimed
operation for the ERL impact test, ABL friction sensitivity test, large scale gap test, vacuum
thermal stability test, and detonation velocity test. Tests shall be conducted in accordance with
4.4.12 to 4.4.16 respectively. The sample should be composed of samples collected from a
number of reclaimed TNT hold tank batches representing no more than 70,000 lbs TNT material.
If test results for the sample indicate that the composite sample material is inferior to the
standard TNT material (after confirmation tests), the TNT material represented by the sample
shall be rejected.
4.3.4 Inspection equipment. For the performance of all tests and examinations specified
in 4.3 and 4.4, commercial inspection equipment should be emplo yed. The contractor shall have
available, and utilize correctly this equipment, and is charged with the responsibility of insuring
that proper calibration procedures are followed. Government approval of all inspection
equipment is required prior to its use for acceptance purposes. (See 6.8).
4.4 Test Methods and Procedures (see 6.7). ACS recommended practice with respect to
blanks, reagents, and standards shall be utilized to avoid degradation, contamination and change
in concentration due to prolong storage of these chemical solutions.
4.4.1 Form and color.
4.4.1.1 Form. The form of the applicable type of TNT shall be determined by visual
examination.
4.4.1.2 Color. The color of the applicable type of TNT shall be determined by visual
examination. The color for Type I and Type III TNT shall be determined in accordance with
FED-STD-595, Color Number 30257.
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