Avoid splashes to the skin, eyes and clothing.
Wear
protective gloves, goggles
and
clothing
if necessary.
Ensure
good
ventilation when in use, avoid
breathing fumes, vapours and spray mists
and
keep containers tightly sealed. Do not
use in confined spaces.
When the spraying material contains sol-
vents, e.g. paints, adhesives, coatings, use
extraction ventilation
or
personal respiratory
protection in the absence of adequate gen-
eral ventilation.
Do
not
apply
heat
or
flame except under spe-
cific
and
detailed manufacturers instructions.
Sound
Insulation -
see
Fibre Insulation,
Foams.
Spot
Welding - see Welding.
SUSPENDED
LOADS
There is always a
danger
when loads are
lifted
or
suspended. Never
work
under an un-
supported suspended
or
raised load, e.g.
jacked
up vehicle, suspended engine, etc.
Always ensure that lifting equipment such as
jacks, hoists, axle stands, slings, etc. are
adequate and suitable for the job,
in
good
condition and regularly maintained.
Never improvise lifting tackle.
Undersea! - see Corrosion Protection.
WELDING -
see
Fire, Electric Shock, Gas
Cylinders.
Welding processes include Resistance
Welding (Spot Welding), Arc Welding and
Gas
Welding.
Resistance Welding
This process
may
cause particles
of
molten
metal to be emitted
at
high velocity and the
eyes
and
skin must be protected.
Arc Welding
This
process emits a high level
of
ultraviolet
radiation which
may
cause eye and skin
burns to the welder
and
to other persons
nearby.
Gas-shielded
welding processes
8
are particularly hazardous
in
this respect.
Personal protection
must
be worn,
and
screens used to shield other people.
Metal spatter will also occur and appropriate
eye and skin protection is necessary.
The heat
of
the welding
arc
will produce
fumes and gases from the metals being
welded and from any applied coatings
or
con-
tamination on the surfaces being
worked
on.
These
gases
and fumes
may
be toxic
and
in-
halation should always
be
avoided. The use
of extraction ventilation to remove the fumes
from the working
area
may
be necessary,
particularly
in
cases where the general venti-
lation is poor,
or
where considerable welding
work is anticipated.
In
extreme cases where
adequate ventilation cannot
be
provided,
supplied air respirators
may
be necessary.
Gas Welding
Oxy-acetylene
torches
may
be
used
for
welding and cutting and special care
must
be
taken to prevent leakage
of
these gases, with
consequent risk
of
fire and explosion.
The process will produce metal spatter
and
eye and skin protection is necessary.
The flame is bright and eye protection should
be used,
but
the
ultra-violet
emission is much
less than that from arc welding, and lighter fil-
ters
may
be used.
The process itself produces few toxic fumes,
but such fumes and gases
may
be
produced
from coatings on the work, particularly during
cutting
away
of damaged body parts
and
in-
halation
of
the fumes should be avoided.
In
brazing, toxic fumes
may
be
evolved from
the metals in the brazing rod, and a severe
hazard
may
arise if brazing rods containing
cadmium are used.
In
this event particular
care must
be
taken to avoid inhalation
of
fumes and expert advice
may
be required.
SPECIAL PRECAUTIONS
MUST
BE
TAKEN
BEFORE
ANY
WELDING
OR
CUTTING
TAKES PLACE ON VESSELS WHICH HAVE
CONTAINED
COMBUSTIBLE
MATERIALS,
E.G. BOILING
OR
STEAMING
OUT
OF
FUEL TANKS.
White
Spirit
- see Solvents.
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