suspect ammunition of any other group. Types of
ammunition having similar hazards can be stored
together but cannot be mixed with other groups.
GROUP S. Ammunition in this group presents no
significant hazard. It is designed or packed so all the
accidental functioning hazards are confined within the
package, unless the package has been degraded by fire.
In this case, all blast or projection effects are limited to
the extent they will not significantly hinder fire-fighting
operations. Examples of these items are thermal
batteries, explosive switches or valves, and other
ammunition items that are packaged to meet the criteria
established for this group.
Ammunition and explosives are assigned to
compatibility groups.
When stored within their
assigned group, ammunition and explosives can be
stored together without significantly increasing either
the probability of an accident or, for a given quantity,
the magnitude of the effects of such an accident. The
mixing of storage compatibility groups is permitted by
NAVSEASYSCOM, as shown in figure 12-2. The
mixing of storage compatibility groups other than those
Figure 12-2.—Storage compatibility mixture chart.
12-9
