MIL-PRF-24623C
material, no loss of sealing capability or identification marking and no discoloration
or effects detrimental to the intended use of the splice.
3.7.11 Flammability. When tested in accordance with 4.7.4.10, burning and after-
glow of the splice shall cease within 30 seconds after removal of the applied flame
and there shall be no violent burning or explosive type fire. The splice shall meet
the optical requirements of 3.6.2 during and after the first application of the flame.
3.7.12 Temperature cycling. When tested in accordance with 4.7.4.11, the splice
shall not exhibit visual evidence of loss of sealing capability and shall meet the
requirements of 3.6.2 during and after the test.
3.8 Workmanship. All details of workmanship shall be as specified herein, when
examined in accordance with 4.8. The splices shall be dimensionally uniform and free
of manufacturing flaws that would degrade performance, that would inhibit proper
assembly or mating, or would otherwise yield an inferior product. Minimum workmanship
requirements are listed in a. and b. below and shall be verified under visual
examination (see 4.8). This list is not intended to restrict other pertinent
workmanship requirements deemed necessary by the contractor.
a. Splice parts which adversely affect environmental sealing or degrade the
optical fiber alignment shall not be permitted.
b. Cuts, abrasions, holes, thin spots, peeling or chipping of plating or
finish, nicks, burns, or other substandard surface blemishes shall not be permitted.
4.
VERIFICATION
4.1 Verification program. Requirements for the verification program shall be as
required by the qualifying activity (see 6.3.2).
4.2 Test equipment and inspection facilities. Requirements for test equipment and
inspection facilities shall be as required by the qualifying activity (see 6.3.3).
4.3 Classification of inspections.
The inspection requirements specified herein are
classified as follows:
a. Qualification inspection (see 4.5).
b. Conformance inspection (see 4.6).
4.4 Inspection conditions. Unless otherwise specified, all inspections shall be
performed in accordance with the standard test conditions specified in TIA/EIA-455 or
as specified herein.
4.5 Qualification inspection. Qualification inspection shall be performed at a
laboratory acceptable to the government, on sample units produced with equipment and
procedures normally used in production (see 3.2 and 6.3).
4.5.1 Sample. Fiber optic splice samples complying with the requirements specified
herein and in the specification sheets (see 3.1) shall be submitted for qualification
certification. The sample shall consist of two sample units for group II and two
sample units for groups III and IV (lensed splices only) of table II.
4.5.1.1 Sample unit. A sample unit shall be the parts required to make a
completely assembled fiber optic splice submitted for qualification.
4.5.1.2 Sample unit preparation. Except for group I inspection of table II and
unless otherwise specified herein, splices shall be fully assembled utilizing two
lengths of cable, each at least 5 meters long, compatible with the splice under test.
The cable shall contain at least two fibers for those units having the capability to
splice more than one fiber. At least two adjacent splices shall be made for each
multisplice unit. When optical crosstalk tests are required, crosstalk shall be
measured between fibers/splices enclosed in the same sample unit.
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