MIL-DTL-757C
TABLE IV. Conformance inspection classification of characteristics.
Chemical and physical characteristics
Inspection
Conformance
Requirement
Classification
Examination or Test
Method
Criteria
Paragraph
Reference
Critical
None defined
Major
101
Appearance
4.3.3.2
3.2
4.4.2
102
Crystal form
4.3.3.2
3.3
4.4.3
103
Crystal dimensions
4.3.3.2
3.4
4.4.4
104
Granulation
4.3.3.3
TABLE I
4.4.5
105
Apparent density
4.3.3.2
TABLE I
4.4.6
106
Acidity
4.3.3.2
TABLE I
4.4.7
Material insoluble in
4.3.3.3
107
TABLE I
4.4.8
ammonium acetate
4.3.3.3
108
Material soluble in ether
TABLE I
4.4.9
4.3.3.3
109
Lead
TABLE I
4.4.10
110
Nitrogen
4.3.3.3
TABLE I
4.4.11
Instantaneous flash point
4.3.3.3
111
TABLE I
4.4.12
(DSC)
Minor
100%
201
Lot numbering
3.6
4.4.13
Notes:
4.3.3 Testing. (see 6.6)
4.3.3.1 Sampling. Obtain two random 30 g samples from each batch of normal lead
styphnate being submitted for inclusion in a lot. The samples shall be obtained from the process
vessel prior to pack out using procedures described in ASTM E300 for slurries.
4.3.3.2 Testing for batch acceptance. One sample obtained according to 4.3.3.1 from
each batch shall be tested in accordance with applicable test methods for conformance with
requirements of appearance (see 3.2), crystal form (see 3.3), crystal dimension (see 3.4),
apparent density (see TABLE I), and acidity (see TABLE I). If any sample fails to meet any of
these requirements, the batch represented by the sample shall be rejected.
4.3.3.3 Testing for lot acceptance. The second samples from the batches not rejected
under provisions of 4.3.3.2 shall be placed in a suitable container of sufficient volume to hold a
composite sample from all batches in the lot. The composite sample shall be thoroughly mixed
to assure homogeneity, and two sub-samples of approximately 30 g each shall be obtained from
6
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