warnings. The primary color warning is the color
assigned to identify the classification of the material
according to its primary hazard from a safety standpoint.
These colors appear as the main body, top, or band
colors on compressed gas cylinders. A secondary color
warning is the color assigned as a warning of a
secondary hazard held by a material. This means that the
material may have another type of secondary hazard that
is distinctly different from that shown by its primary
color warning. These colors appear as band colors on
compressed gas cylinders. The following sections list
the colors used as both primary and secondary warnings.
Yellow identifies flammable or combustible
Brown identifies toxic and poisonous materials.
Blue identifies anesthetics and harmful materials.
These are materials that produce anesthetic vapors and
liquid chemicals and compounds hazardous to life and
property. However, these materials do not normally
produce dangerous quantities of fumes or vapors.
Green identifies oxidizing materials. These are all
materials that readily furnish oxygen for combustion
and react explosively when they come in contact with
Gray identifies physically dangerous materials.
These are materials, safe in themselves, that are
asphyxiating in confined areas. These also are materials
handled in a dangerous physical state of pressure or
Red identifies fire protection materials.
Black identifies a combination of oxygen and other
Buff (tan) identifies industrial gases.
Orange identifies refrigerants.
In addition to its basic colors, each cylinder marking
may include a combination of colored stripes to identify
a particular compressed gas. Refer to chapter 2 of
NAVSUP P-485 or to P-567 for a listing of the different
types of gases and the color markings used on
compressed gas cylinders.
Aerosol products are liquids, solutions, or powders
contained in pressurized dispensers. The dispensers
have release valves to control the discharge amount of
the product. Aerosol containers are commonly used for
the disposal of paints, enamels, lacquers, insecticides,
silicones, and rust preventives. The aerosol propellant
may be low-boiling, halogenated hydrocarbons or other
hydrocarbons such as liquid propane or isobutane.
Aerosol cylinders will burst if exposed to heat sources
more than 120°F. Aerosol cans are prone to leakage
when dented or hit against hard objects. Aerosol
propellants are extremely flammable and, in enough
concentration, can be anesthetic or asphyxiating.
Therefore, aerosol products should be stowed in the
flammable liquids storeroom or in cabinets away from
oxidizing materials. The space should have mechanical
ventilation, when necessary, to remove accumulated
RADIOACTIVE MATERIAL. Radioactive
materials are assigned an SMCC of R or X if radioactive
and magnetic. These materials have the United States
Nuclear Regulatory Commission (USNRC) radiation
symbol label. This label must be in good condition and
remain with the material at all times. Any area used for
storing radioactive material must have the standard
radiation symbol and the words C A U T I ON
RADIOACTIVE MATERIAL conspicuously posted.
Report any suspected radiation hazard promptly to the
radiological safety officer and a representative of the
This section lists those other items requiring special
CLASSIFIED MATERIAL. Stowage and
handling of classified material must be in accordance
with the Department of the Navy Supplement to the
DOD Information Security Program Regulation,
DELICATE INSTRUMENTS. Delicate instru-
ments are usually expensive and easily damaged. These
materials require especially careful handling and
protective stowage. You must keep the instruments in a
dry atmosphere, away from magnetron tubes or
magnetic devices. When possible, the storeroom
temperature should be 70°F or below.
DRUMMED PRODUCTS. Drummed products
on board ships may contain flammable liquids or
nonflammable material. Stow drums on end with the
bung end on top. Each drum must have adequate
identification of its contents legibly indicated on the side
of the drum. If stowed on the weather deck cover the
drums with a tarpaulin (when practical). Drummed
products must be inspected at least weekly to make sure
the bungs are tight and there are no leaks or corrosion.
SHELF-LIFE MATERIAL. Shelf-life material
requires inspection upon receipt to ensure adequate