track all hazardous materials, the Department of
Defense (DoD) has established the Hazardous
Material Information System (HMIS), OPNAVINST
5100.23 (series), which acquires, stores, and
disseminates data on hazardous materials procured for
use. This information is readily available through
every supply department.
A Material Safety Data Sheet (MSDS) (fig. 1-9)
has a variety of formats and is required for each
hazardous item procured. It should be submitted to
the procuring activity by the contractor/
manufacturer/vendor. The MSDS contains nine
sections which provides the user with the following
Fire and explosion hazard data
Health hazard data
Spill or leak procedures
Special protection information
Control measures/special precautions
Hazardous materials, purchased by the military
exchange systems for resale, do NOT require Material
Safety Data Sheets.
Upon drawing any hazardous material, MLO
provides the crew leader with an MSDS. The MSDS
identifies any hazards associated with exposure to
that specific material. It also identifies any
personnel protective equipment or other safety
precautions required, as well as the needed first aid
or medical treatment as a result of exposure. The
crew leader is required by federal law to inform crew
members of the risks and all safety precautions
associated with any hazardous material present in
the shops or on the jobsite. Do this during each daily
safety lecture. Additionally, the MSDS must be
posted conspicuously at the jobsite, shop spaces,
and any other approved hazardous material storage
Refuse of a highly combustible nature, such as dry
wastepaper, excelsior (fine wood shavings), and so
forth, should be collected in metal containers and not
allowed to accumulate. When stored in quantity, keep
these materials away from buildings, roadways, and
ignition sources by a distance of 50 feet or more.
Transport materials to an incinerator or landfill on a
frequent schedule to minimize a fire hazard.
Rags, paper, paint rollers, brushes, and so forth,
that have absorbed drying types of oils, are subject to
spontaneous heating. Keep them in well-covered
metal cans and thoroughly dry them before collection
for transport. Consider for example, the oils listed
below. When you apply these oils, the materials used
are subject to spontaneous heating and could ignite if
not disposed of properly.
1. Linseed oil is a very common oil made from
the flaxseed plant. Researchers find this oil very
combustible when it is absorbed by rags and stored
improperly. The chemical methyl ethyl ketone is an
ingredient of linseed oil, which is a highly flammable
organic solvent used as a thinner and a drying agent.
2. Tung oil is a fast-drying oil produced from the
seed of a Chinese tree and contains the chemical methyl
ethyl ketone. Tung oil has a relatively high flash point
of 140°F, but the rags used to absorb the oil are very
combustible if not disposed of properly.
3. Form oil is made up of modified polyurethane
and resin-based materials. Usually applied by spray-on
methods but at times applied by rubbed-on or rolled-on
methods with various material. These materials are
subject to spontaneous heating.
Flammable Liquids, Adhesives,
and Waste Solvents
Flammable liquids, adhesives, and waste solvents
have variable flash points and hence varying hazards,
depending upon the composition. Some may contain
solids, tars, waxes, and other combustible materials.
Chlorinated solvents and water may also be present.
Note the following examples:
1. Contact cement is a rubber or butane-based
liquid adhesive, which is highly volatile. Methyl ethyl
ketone is one of the chemicals in the makeup of this