eliminated
from the shirt front.
Have fire extinguisher
equipment
handy
for immediate
use! A portable
chemical
fire extinguisher,
type ABC, is
recommended.
Wear
ear plugs when welding
overhead
to prevent
spatter or slag from falling
into ear.
Make sure welding
area has a good,
solid, safe floor, preferably
concrete
or
masonry,
not tiled, carpeted,
or made of
any other flammable
material.
Protect
flammable
walls, ceilings,
and floors with heat resistant
covers
or shields.
Check welding
area to make sure it
is free of sparks,
glowing
metal or slag,
and flames
before
leaving the welding
area.
FUME
HAZARDS
WARNING
FUMES,
GASSES,
AND VAPORS
CAN
CAUSE
DISCOMFORT,
ILLNESS,
AND
DEATH!
To reduce the risk of discomfort,
ill-
ness, or death, read, understand,
and follow
the following
safety instructions.
In addition,
make certain that anyone
else that uses this
welding
equipment
or is a bystander
in the
welding
area, understands
and follows
these
safety
instructions
as well.
6
Do not weld in an area until it is checked
for adequate
ventilation
as described
in
ANSI standard
#Z49.1.
If ventilation
is
not adequate
to exchange
all fumes
and
gasses
generated
during the welding
process
with fresh air, do not weld unless
you (the welder)
and all bystanders
are
wearing
air-supplied
respirators.
Do not heat metals coated with, or that
contain,
materials
that produce
toxic
fumes
(such as galvanized
steel),
unless
the coating
is removed.
Make certain the
area is well ventilated,
and the operator
and all bystanders
are wearing
air-sup-
plied respirators.
Do not weld, cut, or heat lead, zinc,
cadmium,
mercury,
beryllium,
or similar
metals
without
seeking
professional
advice and inspection
of the ventilation
of
the welding
area. These
metals produce
EXTREMELY
TOXIC
fumes which can
cause discomfort,
illness,
and death.
Do not weld or cut in areas that are near
chlorinated
solvents.
Vapors
from chlori-
nated hydrocarbons,
such as
trichloroethylene
and perchloroethylene,
can be decomposed
by the heat of an
electric
arc or its ultraviolet
radiation.
These actions
can cause PHOSGENE,
a
HIGHLY
TOXIC
gas to form, along with
other lung and eye-irritating
gasses.
Do
not weld or cut where
these solvent
vapors
can be drawn into the work area
or where
the ultraviolet
radiation
can pen
etrate to areas containing
even very
small amounts
of these vapors.
Do not weld in a confined
area unless it
is being ventilated
or the operator
(and
anyone
else in the area) is wearing
an
air-supplied
respirator.
Stop welding
if you develop
momentary
eye, nose, or throat irritation
as this indi-
cates inadequate
ventilation.
Stop work
and take necessary
steps to improve
ventilation
in the welding
area. Do not
resume
welding
if physical
discomfort
persists.