JOTP-011
5 December 2014
APPENDIX H. NON-SEQUENTIAL TESTS/ASSESSMENTS
ANNEX 4. OTHER SAFETY TESTS/ASSESSMENTS TO BE CONSIDERED
H.4-2 EXTENDED TEMPERATURE CYCLE.
Some energetic materials may crack during low-temperature cycling causing potentially unsafe
conditions (e.g., dangerous internal operating pressures in rocket motors). Further rationale is
given in Appendix A.
a. When required, perform the extended temperature cycling test on two separate units
(either component or an assembled munition). Seal these units against moisture if they or the
munition are sealed in the shipping, storage, or tactical configuration.
b. Subject the units to 20 diurnal cycles between 10 °C and -51 °C. Dwell at high and low
temperatures for 4 hours, with 8-hour ramps between temperature extremes.
c. The two units are radiographed to determine if cracking or separation has occurred.
Static fire the units at the operational low temperature extreme to assess potential safety hazards.
H.4-3 LONG-TERM STORAGE.
At a minimum, all explosive materials in a munition shall undergo appropriate testing and
assessment per STANAG 4170 and AOP-7 to determine whether each possesses properties which
make it safe for consideration for use in its intended role. In addition, energetic components may
be subjected to extended diurnal cycling storage tests using guidance in MIL-STD-810, Method
501. This test will thermo-mechanically stress the item yielding information that might identify
potential failure modes and future safety problems. A full BTCA inspection in accordance with
Appendix E should be conducted following the long-term storage test.
H.4-4 OPERATOR SAFETY.
This test assesses the rearward effects on the operator in the event a missile is mistakenly fired
into a barrier before the warhead has armed. One item shall be tested at ambient temperature. The
item shall be launched into a concrete barrier, which is positioned before the minimum arming
distance. The change in kinetic energy shall not cause the warhead to function or any other
explosive event to occur that would endanger the operator. The item may be assembled from
leftover safety assessment test components or if necessary, one of the fuze arming test assets
(Appendix D, Annex 1, Paragraph D.1-2) may be utilized for this test.
H.4-5 BALLISTIC SHOCK.
The test simulates a high-level transient shock that generally results from the impact of projectiles
or ordnance on armoured combat vehicles, hardened targets, or other structures. Testing may be
required if identified by the munition specific LCEP.
H.4-2
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