MIL-B-18F
4.1.1.3 Timing. Timing equipment shall be accurate within 0.5 percent.
4.2 Classification of inspections. The inspection requirements specified herein are classified as follows:
Materials and components inspection (see 4.4).
a.
b.
First article inspection (see 4.5).
Conformance inspection (see 4.6).
c.
4.3 Inspection conditions. Unless otherwise specified, all inspections shall be performed in accordance with the
test conditions specified in "GENERAL REQUIREMENTS" of MIL-STD-202.
4.4 Materials and components inspections. Materials and components inspection shall consist of verification by
certification from the source that the materials and components, used in fabrication of the batteries, are in accordance
with applicable requirements prior to such fabrication. In the absence of certification from the source, a certificate of
analysis or certified inspection data shall be required as proof of conformance to applicable requirements. Materials
and components involved are listed in table II.
4.4.1 Samples of materials and components. For those items listed in table II, for which the specification does not
reference a subsidiary specification, eight sample specimens of materials and components, treated and processed as
they would be in the finished batteries, shall be inspected.
4.5 First article inspection. Unless otherwise specified in the contract or purchase order, after award of contract
4.5.1 Sample batteries. The contractor, at no additional cost to the Government, shall fabricate 21 batteries (if
multicell), or 31 batteries (if single cell) which shall constitute the first article inspection lot.
4.5.2 Inspection routine. First article inspection shall consist of the examinations and tests specified in table III,
and shall be performed in the order shown. One untested sample battery, as shown in group III, shall remain at the
contractor's manufacturing plant and shall be available to the Government as a reference standard for comparative
purposes.
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