MIL-DTL-248D
4.3.2.8 Classification of characteristics - Additional tests for reclaimed TNT (Type III)
(Note tests in 4.3.2.7 are also required for reclaimed TNT)
Classi
Examination
Conformance
Requirement
Inspection
fication
criteria
paragraph
method ref.
Critical: None defined
Major:
101.
Impact sensitivity
4.3.3.3.3
3.2 (Table 1)
4.4.12
102.
Friction sensitivity
4.3.3.3.3
3.2 (Table 1)
4.4.13
103.
Vacuum thermal stability
4.3.3.3.3
3.2 (Table 1)
4.4.14
104.
Large scale gap test
4.3.3.3.3
3.2 (Table 1)
4.4.15
105.
Detonation velocity
4.3.3.3.3
3.2 (Table 1)
4.4.16
106.
Process screening
100%
3.5 & 3.6
4.4.11
4.3.3 Sampling/Testing. Representative sample(s) (as detailed below) shall be taken
from each batch of TNT in accordance with ASTM E300 for solids. The product shall be
submitted for inspection to determine compliance with all the requirements in section 3. Failure
of a sample to comply with any of the requirements shall be considered a major defect and will
result in rejection of the lot.
4.3.3.1 Continuous nitration process sampling.
4.3.3.1.1 Pre-production sampling. After the debugging process has been completed,
samples shall be selected every hour for the first 8 hours production from each line and subjected
to the test specified in 4.4. If any sample fails to comply with the test requirements, the
production shall be rejected and the contractor shall go through the debugging process again to
bring the product within specification.
4.3.3.1.2 Samples for regular production (lot acceptance). After the testing for the Pre-
production has been completed, samples that represent a sub- lot (a transportation unit regardless
of its size) shall be selected from each line and subjected to the solidification test specified in
4.4.2 and tests specified in 4.4.1 and 4.4.3 through 4.4.9. If any samples fail to comply with the
test requirements, the sub-lot shall be rejected. The sub- lot data will be recorded on the lot
acceptance sheet of each lot.
4.3.3.1.2.1 Normal Sampling. An individual sample, consisting of approximately 8
ounces shall be randomly selected from each four hours of production, from each line. These
samples shall be subjected to all tests specified in Table I, paragraph 3.3 and paragraph 3.4. Each
sample shall be analyzed separately (no composite sampling) and evaluated independently. If
any sample fails to comply with any requirement, all material since the last acceptable material
produced shall be sampled at approximately 20 box intervals. Normal sampling can be resumed
after seven consecutive samples tested (1 sample/20 boxes interval) satisfy the previously failed
requirement. All boxes preceding or succeeding a failed sample shall be removed and rejected.
4.3.3.2 Batch Process Sampling. For TNT produced by the batch process, two
representative samples of approximately 8 ounces each shall be randomly selected from each
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