MIL-PRF-18494F(AS)
4.8 Actuation pull force. The actuation pull force shall be checked for its conformance to
the requirements of 3.8.3.
4.9 Operational tests. In either a controlled pool, fresh water, or at sea, the life raft
operation shall be demonstrated as follows:
Both rated and overload capacities established in accordance with the requirements of 3.6 shall
be demonstrated with inflation tubes at minimum operating pressure. The resultant freeboard
shall meet the requirements of FAA TSO-C70a and 3.7. The required life raft equipment shall
be aboard the life raft. The tie down capability shall be demonstrated with the four survival
items (see 3.8.2). The life raft shall be evaluated for its conformance to the requirements of FAA
TSO-C70a and as specified in section 3 of this specification.
4.10 Environmental tests.
4.10.1 Temperature extremes test.
4.10.1.1 Low temperature test. The life raft shall be exposed to 0+2 °F (-18+1 °C) for not
less than 48 hours. The raft shall then be removed to the inspection area and placed on a table or
on the floor. The inflation equipment shall be immediately actuated. The life raft shall be
observed for conformance to the requirements of 3.12.1.1.
4.10.1.2 High temperature test. The test procedures set forth in 4.10.1.1 shall be repeated,
except the raft shall be exposed to 160+2 °F (71+1 °C) for not less than 48 hours. The raft shall
be observed for conformance to the requirements of 3.12.1.2.
4.10.2 Low pressure (altitude) test. The packed life raft contained in its carrying case shall
be tested in a low pressure environment in accordance with MIL-STD-810, Method 500.4. At
the completion of the test, the raft shall be removed from the low pressure environment and
observed for its conformance to the requirements of 3.12.2.
4.10.3 Sand and dust test. The packed life raft contained in its carrying case shall be tested
in an airborne sand and dust environment in accordance with MIL-STD-810, Method 510.4. At
the completion of the test, the raft shall be removed from the airborne sand and dust environment
and observed for its conformance to the requirements of 3.12.3.
4.10.4 Vibration test. The packed life raft contained in its carrying case shall be tested for
its ability to withstand aircraft vibration in accordance with MIL-STD-810, Method 514.5. At
the completion of the vibration test, the life raft shall be observed for its conformance to the
requirements of 3.12.4.
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