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|  MIL-S-23772 (Wep)
After completing the above vibration test the hydrostatic switch shall be
capable of meeting acceptably all performance requirements and product
characteristic of this specification,
4.6.3
Shock, free fall drop test. - The hydrostatic switch packaged
and packed as designated in 5, shall be subjected to a free fall drop shock
from a height of thirty inches to a concre te or hard steel surface. This
test shall be applied to each corner of the packaged unit, Upon completion
of the test the hydrostatic switch shall be capable of meeting acceptably
all performance requirements and product characteristics of this
specification.
4.6.4
Shock, transportation, storage and handling. - The
hydrostatic switch packaged and packed as indicated in 5, shall be subjected
to three mutually perpendicular shocks of equal magnitude, each shock to be
applied normally to one of the faces of the shipping containes. In each test
the container is to be accelerated in such a manner that during the first three
milliseconds the minimum average acceleration is seventy-fi ve (75) gravity
units. The peak acceleration shall be between 125 and 175 gravity units.
Upon completion of the above test the hydrostatic switch shall be capable of
meeting acceptably all performance requirements and product characteristics
of this specification.
4.6.5
Shock, ready-non-operating or ready condition. - The
hydrostatic switch shall be subjected to a continuous two-phase shock applied
in any direction with respect to the mechanism.
A. The first (impact) phase shall consist of a cha ge of
velocity of 5.5 to 7,0 feet per second taking place in from 0.2 to 0.4
millisecond.
B. During the second (drag) phase, the hydrostatic switch
shall be accelerated for a minimum time of 15 milliseconds in such a
manner that during this time the minimum average acceleration is 100
gravity units. The peak acceleration shall be between 125 and 150 gravity
units. Upon completion of the above test the hydrostatic switch shall be
capable of meeting acceptably all performance requirements and product
characteristics of this specification.
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