and located in accordance with DOD Instruction 6055.9. Storage facilities not
located under the same roof as facilities used for handling, processing,
servicing, and inspection of ammunition, explosives, propellants, and
oxidizers shall be constructed and located in accordance with DOD Instruction
6055.9-STD. Automatic sprinklers are not required in magazines, bunkers, and
storage facilities which comply with DOD Instruction 6055.9-STD.
Warehouses and Storage Facilities. These criteria apply to
facilities (except ordnance) used for storage, shipping, receiving, packing,
and processing of materials.
Sprinkler Protection. Complete automatic sprinkler protection shall
be provided for warehouses and storage facilities 5,000 square feet (464.68
m2) or greater, and mixed occupancy facilities containing warehouse and
storage facilities 5,000 square feet (464.68 m2) or greater. Sprinklers shall
be provided for smaller facilities containing materials, equipment and
supplies that are mission essential, pose a severe fire hazard, are of high
monetary value, pose a safety or environmental health risk, or expose an
important structure. Sprinkler protection shall include covered loading
a) Sprinkler protection shall be based on Class IV commodities, as
defined by NFPA 231, General Storage and NFPA 231C, Rack Storage of Materials,
unless a more severe class of storage is anticipated, and shall be based on
the maximum potential height of storage.
b) Ceiling sprinklers in warehouses shall have a temperature
rating of 286 degrees F (141.1 degrees C) for storage under 25 feet (7.62 m),
and 165 degrees F (73.89 degrees C) for storage 25 feet (7.62 m) and higher.
In-rack sprinklers shall be ordinary temperature rated.
c) In-rack sprinklers shall be supplied from risers which are
separate from the ceiling sprinklers.
d) Warehouses with rack storage over 12 feet (3.66 m) high shall
be protected in accordance with NFPA 231C; general storage over 12 feet (3.66
m) or of group A plastics as defined by NFPA, shall be protected in accordance
with NFPA 231. Automatic storage and retrieval systems and bin boxes stacked
in rack support structures shall be protected as rack storage.
e) Non-encapsulated rack storage over 22 feet (6.7 m) in height
and encapsulated rack storage over 12 feet (3.66 m) in height shall be
protected with in-rack sprinklers. Racks with solid shelves over 12 feet
(3.66 m) in height shall be protected with in-rack sprinklers at every tier or
shelf level. Early suppression fast response (ESFR) sprinklers may be used in
lieu of in-rack sprinklers in accordance with NFPA 231C.