4-5. Storage compatibility적합성 groups
a. Assignment. Ammunition and explosives are assigned to one of 13 SCGs as follows:
(1) Group A. Bulk initiating explosives that have the necessary sensitivity to heat, friction, or percussion to make them suitable for use as initiating elements in an explosives train. Examples are wet lead azide, wet lead styphnate, wet mercury fulminate, wet tetracene, dry cyclonite (RDX), and dry pentaerythritol tetranitrate (PETN).
(2) Group B. Detonators and similar initiating devices not containing two or more independent safety features. Items containing initiating explosives that are designed to initiate or continue the functioning of an explosives train. Examples are detonators, blasting caps, small arms primers, and fuzes.
(3) Group C. Bulk propellants, propelling charges, and devices containing propellant with or without their own means of ignition. Items that, upon initiation, will deflagrate, explode, or detonate. Examples are single-, double-, triple-base and composite propellants, rocket motors (solid propellant), and ammunition with inert projectiles.
(4) Group D. Black powder, high explosives (HE), and ammunition containing HE without its own means of initiation and without propelling charge, or a device containing an initiating explosives and containing two or more independent safety features. Ammunition and explosives that can be expected to explode or detonate when any given item or component thereof is initiated except for devices containing initiating explosives with independent safety features. Examples are bulk trinitrotoluene (TNT), Composition B, black powder, wet RDX or PETN, bombs, projectiles, cluster bomb units (CBUs), depth charges, and torpedo warheads.
(5) Group E. Ammunition containing HE without its own means of initiation and with propelling charge (other than one containing a flammable or hypergolic liquid). Ammunition or devices containing HE and containing propelling charges. Examples are artillery ammunition, rockets, or guided missiles.
(6) Group F. Ammunition containing HE with its own means of initiation and with propelling charge (other than one containing a flammable or hypergolic liquid) or without a propelling charge. Examples are grenades, sounding devices, and similar items having an in-line explosives train in the initiator.
(7) Group G. Fireworks, illuminating, incendiary, and smoke, including hexachloroethane (HC) or tear-producing munitions other than those munitions that are water activated or which contain white phosphorous (WP) or flammable liquid or gel. Ammunition that, upon functioning, results in an incendiary, illumination, lachrymatory, smoke, or sound effect. Examples are flares, signals, incendiary or illuminating ammunition, and other smoke or tear-producing devices.
(8) Group H. Ammunition containing both explosives and WP or other pyrophoric material. Ammunition in this group contains fillers which are spontaneously flammable when exposed to the atmosphere. Examples are WP, plasticized white phosphorous (PWP), or other ammunition containing pyrophoric material.
(9) Group J. Ammunition containing both explosives and flammable liquids or gels. Ammunition in this group contains flammable liquids or gels other than those which are spontaneously flammable when exposed to water or the atmosphere. Examples are liquid- or gel-filled incendiary ammunition, fuel-air explosives (FAE) devices, flammable liquid-fueled missiles, and torpedoes.
(10) Group K. Ammunition containing both explosives and toxic chemical agents. Ammunition in this group contains chemicals specifically designed for incapacitating무능력effects more severe than lachrymation. Examples are artillery or mortar ammunition (fuzed or unfuzed), grenades, and rockets or bombs filled with a lethal or incapacitating chemical agent. (See note 5, fig. 4 1.)
(11) Group L. Ammunition not included in other compatibility호환성 groups. Ammunition having characteristics that do not permit storage with dissimilar ammunition belong in this group. Examples are water-activated devices, prepackaged hypergolic자동점화성 liquid-fueled rocket engines, certain FAE devices, triethylaluminum (TEA), and damaged or suspect ammunition of any group. Types presenting similar hazards may be stored together but not mixed with other groups.
(12) Group N. Ammunition containing only EIDS. Examples are bombs and warheads.
(13) Group S. Ammunition presenting no significant hazard. Ammunition so packaged or designed that any hazardous effects arising from accidental functioning are confined within the package unless the package has been degraded by fire, in which case all blast or projection effects are limited to the extent that they do not hinder firefighting significantly. Examples are thermal batteries, explosives switches or valves, and other ammunition items packaged to meet the criteria of this group.
b. Means of initiation. As used in this standard, the phrase with its own means of initiation indicates that the ammunition has its normal initiating device assembled to it, and this device would present a significant risk during storage. However, the phrase does not apply when the initiating device is packaged in a manner that eliminates the risk of causing detonation of the ammunition if the initiating device functioned accidentally, or when fuzed end items are
configured and packaged to prevent arming of the fuzed end items. The initiating device may be assembled to the ammunition provided its safety features preclude initiation or detonation of the explosives filler of the end item during an accidental functioning of the initiating device.
4-6. Class 1 or 6 chemical agent hazards or combined chemical agent and explosives hazards
a. Items in these classes are chemical agent-filled ammunition, chemical agents, and chemical agent-filled components. Depending upon의존하다 the type of agent, its persistency지속, toxicity, or other characteristics, the primary safety considerations may be the area of agent dispersal 산포rather than할지언정~보다 blast or fragment considerations.
b. Items that contain only toxic chemical components are assigned to HD 6.1. Items that contain both explosives and toxic chemical components are included in UN Class 1, ammunition and explosives, as appropriate. HD 6.1 requirements also shall be applied so that the explosives and toxic chemical hazards both are considered.
4-7. Underground storage
Ammunition with smoke producing, incendiary, flammable liquid or toxic chemical agent fillers may be stored in single chamber underground facilities but shall not be stored in multi-chamber facilities. Other than this restriction, ammunition and explosives of all compatibility groups may be placed in underground storage in compatible combinations as permitted above.