FED-STD-228A
4.3 The diameter of the mandrel shall be determined by multiplying the overall diameter of the cable by
the factor in table I corresponding to the overall diameter of the cable and the average thickness of the
insulation shall be determined as described in method 1011.
4.4 Flat twin cable shall be bent on the minor axis of its cross section only. The minor diameter shall be
used in determining the size of the mandrel.
5. RESULTS
5.1 Unless otherwise specified in the detail specification, one specimen from each inspection unit shall
be tested.
5.2 Any breaking of the yarn in the fibrous covering of the specimen shall be recorded.
5.2.1 For wraps or servings, the type of yarn broken shall be recorded.
5.3 Any flaking of the finishing materials of the specimen shall be recorded.
5.4 The flexibility of the inspection unit shall be the results obtained from the specimen or specimens
tested.
5.5 The temperature, time of exposure, and size of mandrel shall be recorded.
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