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Manual Manufacturing Chemists’ Association, Inc. Tolylene Diisocyanate
Shee?
SD-73
(c) He should know exactly what action to take (c) Eye Washes
if fires, spills, or other similar occurrences should take
place. Should tolylene diisocyanate liquid or vapor
come into contact with the eyes, some means of
(d) He should be drilled in the proper use of fire flushing with water should be available nearby.
fighting, first-aid and rescue equipment. It is im Safety showers, eye baths, or bubbler drinking foun
portant that he know the exact location of these tains may be used. Wash the eye copiously xyith
items, as well as the location of safety showers, eye water for several minutes, then report to the medical
baths, bubbler drinking fountains, fire alarms, and department. (See Sections 10 and 11.)
emergency shutdown equipment.
5.2.3 Respiratory Protection
(e) He should know when personal protective
equipment is to be used and how to use it effectively. 5.2.3.1 Severe exposure to tolylene diisocya
(See Section 5.2). nate may occur in tanks during equipment repairs,
when areas are being decontaminated following spills,
5.1.2 It is the responsibility of supervision to or in case of failure of piping or equipment. Em
train each worker, and, equally as important, to instill ployees who may be subject to such exposures should
within him an attitude of safety. The supervisor be provided with the proper respiratory protection.
must procure the necessary safety equipment and be 5.2.3.2 Respiratory protective equipment must
sure that it is maintained in working order at all be carefully maintained, inspected, and cleaned regu
times.
larly. In areas where frequent exposures to tolylene
5.1.3 Operating procedures, including all safety diisocyanate vapors may occur, each worker should
rules, should be posted in work areas where they may be assigned a gas mask (or whatever type of respira
be read by employees. tory protective device is authorized). This equip
ment should be located at some easily accessible
point. Every worker should know how to put on his
5.2 PERSONAL PROTECTIVE EQUIPMENT mask quickly and how to operate it properly. When
masks are not assigned on an individual basis, the
5.2.1 Availability and Use
equipment should be sterilized before use by another
While personal protective equipment is not an person.
adequate substitute for good, safe working condi
5.2.3.3 The following types of respiratory
tions, adequate ventilation, and intelligent conduct equipment are available:
on the part of employees working with tolylene
diioscyanate, it is in many instances, the only prac (a) Self-Contained Breathing Apparatus—
tical means of protecting the worker, particularly in which permits the wearer to carry a supply of oxygen
emergency situations. One should keep firmly in or air compressed in the cylinder, and the self-gen
mind that personal protective equipment protects erating type which produces oxygen chemically, al
only the worker wearing it, and other unprotected low for greater mobility. The length of time a self-
workers in the area may be exposed to danger. contained breathing apparatus provides protection
varies according to the amount of air or oxygen sup
The following personal protective equipment
should be used as indicated: ply carried. Cylinder (or compressed) oxygen
should not be used in tanks or other confined spaces.
5.2.2 Eye Protection (b) Positive Pressure Hose Masks—supplied
by externally lubricated blowers. Since these masks
(a) Safety Glasses
depend on a remote air supply, they should be used
Metal or plastic rim safety spectacles with only where conditions will permit safe escape in the
unperforated side shields which can be obtained with event of air supply failure. Care must be taken to
prescription safety lenses or suitable all-plastic safety locate the blower air source in an area which is free
goggles may be used where continuous eye protec of air contaminants.
tion is desirable, as in laboratories. However, where
complete eye protection is needed, safety glasses (c) Air-Line Masks—supplied by plant com
alone are not adequate. pressed air are suitable for use only where conditions
will permit safe escape in case of failure of the
(b) Chemical Safety Goggles compressed air supply. Such masks should be used
with a suitable reducing or demand-type valve, excess
Cup-type or rubber-framed goggles of the pressure relief valve, and filter. The compressed air
cover-all type, equipped with the approved impact should be checked frequently to make certain that
resistant glass or plastic lenses, should be worn when harmful gases from the decomposition of the lubri
ever there is danger of tolylene diisocyanate liquid cating oil used in the compressor, or impure air
or vapor coming in contact with the eyes. supply, are not present.
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