(1) Spray Painting Indoors. An approved airline
19. CONTROL MEASURES
respirator is the standard respirator to be worn when
a. Personal Protection.
paint spraying indoors; however, alternatives are
permitted when spray operations are not conducted in a
(1) Personal Protection Equipment (PPE) used
confined space and valid sampling results document the
in conjunction with respiratory protection equipment
personal exposure levels.
(paragraph 19b) includes cloth coveralls, eye protection,
(a) Large Vehicular or Walk-in Booths. If the
and head coverings. Cloth gloves are suitable unless
diisocyanate concentration is below the standard, a full
cellosolve acetate (2-ethoxyethyl acetate) is present in
facepiece chemical cartridge respirator with a paint
the paint, solvent, or primer. When this solvent is
prefilter is adequate. If the solvent concentration is less
present, silicon rubber gloves are recommended. Spot
than 10 times the standard, a paint-spray respirator is
painters applying paint by brush or roller must wear
adequate. If the pigment containing lead or chromate
clothing and gloves affording full skin coverage. Persons
concentration is less than 10 times the standard, an
who clean mixing and painting accessories should wear
organic vapor respirator with a HEPA filter is adequate.
eye protection and rubber gloves to preclude solvent
(b) Spray Cabinet or Conveyor-type Booth. If
absorption and defatting of the hands caused by the
the contaminant (solvent, pigment, or diisocyanate)
concentration is below the standard, no respiratory
(2) The use of barrier creams is acceptable;
protection is required. If either the solvent or diisocyanate
however, their usefulness in preventing the absorption of
concentration exceeds the standard, an airline respirator
solvent through the skin is not documented. If a solvent
is required. If the pigment containing lead or chromate
with a skin notation is being used, then silicon rubber
concentration exceeds the standard, but is less than 10
gloves must be used. Barrier creams are useful in
times the standard, an organic vapor respirator with a
preventing paint from adhering to the skin and in
HEPA filter is required.
combating the "dryness" associated with the defatting
(c) Spray Painting Outdoors. If in a confined
action of most solvents. Solvents must never be used to
space, an airline respirator is required. If not in a
remove paint/coating from the skin.
confined space, a paint-spray respirator is required.
(3) Work clothing should be provided. After
(2) Brush or Roller Painting Indoors or Outdoors. If
completing painting or sanding operations, hygienic
not in confined space, an organic vapor respirator,
showers should be taken prior to changing into street
medicine/industrial hygiene personnel. In a confined
space, an approved airline respirator is required.
b. Respiratory Protection.
Application of a water-base paint does not normally
require respiratory protection; however, local preventive
medicine/industrial hygiene personnel will determine the
For the purpose of determining respiratory
protection required for a given operation, a confined
(3) All Painting. If respiratory protection other than
space is any of the following sites:
an approved airline respirator is used, then exposure
Any area where dilution ventilation cannot take
must be documented by preventive medicine/industrial
place, or where airflow is obstructed
Under or in vehicles/equipment, whether indoors
(4) Sampling. Sampling is done during the painting
of different vehicles and equipment, when the booths'
Indoor areas (not in spray paint booth) of less
filters are clean and dirty, when changes or modifications
than 10,000 cubic feet
occur in or to the booths, and for each painter. The
sampling will be performed according to the US Army
Indoor areas where ceiling height is less than 16
Environmental Hygiene Agency's Technical Guide No.
141 and in sufficient numbers to be statistically valid.
Touchup paint areas with partitions, balconies,
Sampling methods other than those listed in the Tech
or any structural barriers obstructing cross-
Guide, i.e., NIOSH methods, may be used upon approval
by the laboratory providing services. The documentation
Any area where outside air is not mechanically
will be revalidated every 2 years if the initial sampling
distributed at a minimum rate of 3.5 cfm per
results are below one-half of the standard and every 6
square foot of bay/room/area where touchup
months if greater than one-half of the standard.
painting takes place
Additional monitoring is required whenever there has
been a production, process, control or personnel change
or whenever there is any other change that may result in
new or additional exposures.