JOTP-011
5 December 2014
APPENDIX A. BACKGROUND/RATIONALE
ANNEX 1. ENVIRONMENTAL TESTS
A.1-2.4.1 Phased Thermal Shock.
A.1-2.4.1.1 Low Temperature Phase (Appendix C, Annex 1, Paragraph C.1-6a).
This test simulates movement of warm munitions from storage or from a transport vehicle in
maintenance to an extreme cold environment or vice versa. The low temperature shock test
consists of five temperature shock cycles between the temperatures of 21 °C (standard ambient)
and -51 °C. In most applications, the munition will be exposed to the temperature shock
environment in its logistic container. However, to address the most severe condition the munition
should be tested in its unpackaged configuration.
a. The -51 °C temperature is the low extreme presented in MIL-STD-810, Method 503, for
Climate Category C3.
b. Stabilization at the temperature extremes is required. Munitions in storage or in warm
buildings associated with vehicle maintenance would likely achieve temperature stabilization.
Also, the extremely low temperatures encountered in the natural environment are likely to persist
longer than the munition temperature stabilization time.
A.1-2.4.1.2 High Temperature Phase (Appendix C, Annex 1, Paragraph C.1-6b).
This test exposes the munitions to rapid temperature transition from -5 °C (temperature at an
altitude of 8 km, from MIL-STD-810, Method 503) to the unpackaged SRE temperature.
a.
This test simulates rapid movement of munitions under the following scenarios:
(1) Movement of warm munitions from storage (e.g., magazine or process area) to an
extreme cold environment, or vice versa;
(2) Rapid ascent from a desert airfield to high altitude (8 km) in an unheated aircraft
compartment or carried externally.
(3) Air delivery or airdrop from high altitude (8 km) to a desert environment.
b. Stabilization at the temperature extremes is required. Munitions in flight prior to air
delivery would likely achieve temperature stabilization. Also, the extremely high temperatures
encountered in the natural environment are likely to persist longer than the munition temperature
stabilization time.
A.1-2.4.2 Aggravated Thermal Shock.
a. The handling and transport of munitions between a temperature conditioned storage
area and the ambient outdoor environment is the prevailing mechanism for rapid thermal change.
A.1-6
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