FED-STD-228A
5.1 Calculation. The springiness of the armor wire of the specimen shall be calculated as follows:
Springiness, inches=D2-D1
where:
D1=the average diameter over the armor wire coil wound around the mandrel, inches
D2=the average diameter over the armor wire coil after removal from the mandrel, inches
5.2 Unless otherwise specified in the detail specification, two specimens from each inspection unit shall
be tested.
5.3 The springiness of the armor wire of the inspection unit shall be the average of the results obtained
from the specimens tested.
5.4 The springiness of armor wire of the inspection unit shall be recorded to the nearest mil or 0.001
inch.
5.5 The weight used shall be recorded.
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