This specification furnished general requirements for design and establishes uniform methods for evaluation testing of cartridges used in stores suspension equipment. The purpose of the testing program is to determine soundness of design and verify resistance to deleterious service environments. For purposes of this specification, the term cartridge includes any assembled unit containing propellant, or pyrotechnic material, either singly or in any combination, designed as the energy source for stores suspension equipment. Cartridges must be safe for handling, transportation, storage and use and must not deteriorate to a degree which would render their performance or safety doubtful under normal service handling, adverse storage, or transportation. Additionally, they shall meet the safety and structural design requirements of MIL-D-21625 (Wep). Intended Use: This specification is intended to prescribe essential design requirements and establish adequate evaluation test procedures to be followed in designing and testing new cartridges for stores suspension equipment. The tests subject the cartridges to simulated and accelerated environmental conditions and to functional tests as necessary to insure satisfactory functional and ballistic performance reliability when cartridges and devices are operated or stored under the range of conditions encountered in service.