MIL-DTL-757C
4.2.3 First article rejection. If any item of the sample fails to comply with the first article
requirements, the first article shall be rejected.
TABLE III. First article inspection.
Inspection
Sampling
Requirement
Method
Examination or Test
Quantity
Paragraph
Reference
Appearance
1g
3.2
4.4.2
Crystal form
1g
3.3
4.4.3
Crystal dimensions
1g
3.4
4.4.4
Granulation
30 g
TABLE I
4.4.5
Granulation (alternate method)
1g
TABLE I
4.4.5.1
Apparent density
2g
TABLE I
4.4.6
Acidity
1g
TABLE I
4.4.7
Material insoluble in
1g
TABLE I
4.4.8
ammonium acetate
TABLE I
Material soluble in ether
2g
4.4.9
TABLE I
Lead
0.55 g
4.4.10
Nitrogen
0.8 g
TABLE I
4.4.11
Instantaneous flash point (DSC) .5 mg
TABLE I
4.4.12
Lot numbering
1/
3.6
4.4.13
Notes:
1/ The first article sample shall be manufactured and assigned a first article lot
number. All raw materials used in producing the normal lead styphnate shall be
from the same sources as will be used in regular production.
4.3 Conformance inspection.
4.3.1 Lot formation. Lot formation shall be in accordance with the lot formation
requirements of MIL-STD-1916, paragraph Formation and identification of lots and batches. A
lot shall consist of one or more batches not exceeding 226.5 kg (500 pounds) produced by one
manufacturer, in accordance with the same specification revision, under one continuous set of
operating conditions.
4.3.2 Inspection by classification of characteristics. Known characteristics are classified
in TABLE IV. The definitions of critical, major and minor defects are provided in paragraph
"Definitions" of MIL-STD-1916.
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