CWS−D100−B Welding System
Foreword
2005 Swagelok Company, all rights reserved
September 2005
v
FUMES AND GASES can be hazardous.
Welding produces fumes and gases. Breathing
these fumes and gases can be hazardous to your
health. Build−up of gases can displace oxygen
and cause injury or death.
D
Do not breathe fumes or gases.
D
If inside, ventilate the area and/or use exhaust at the
arc to remove welding fumes and gases.
D
If ventilation is poor, use an approved air-supplied
respirator.
D
Read the Material Safety Data Sheets (MSDSs) and
the manufacturer’s instructions for metals,
consumables, coatings, cleaners, and degreasers.
D
Work in a confined space only if it is well
ventilated or while wearing an air−supplied
respirator. Always have a trained watch−person
nearby. Welding fumes and gases can displace air
and lower the oxygen level causing injury or death.
Be sure the breathing air is safe.
D
Do not weld in locations near degreasing, cleaning,
or spraying operations. The heat and rays of the arc
can react with vapors to form highly toxic and
irritating gases.
D
Do not weld on coated metals, such as galvanized,
lead, or cadmium plated steel, unless the coating is
removed from the weld area, the area is well
ventilated, and if necessary, while wearing an
air−supplied respirator. The coatings and any
metals containing these elements can give off toxic
fumes if welded.
D
The ultraviolet light emitted by the welding arc acts
on the oxygen in the surrounding atmosphere to
produce ozone. Test results
1
, based upon present
sampling methods, indicate the average
concentration of ozone generated in GTAW process
does not constitute a hazard under conditions of
good ventilation and welding practice.
1
WELDING HANDBOOK, VOLUME 2, 8TH EDITION,
AMERICAN WELDING SOCIETY.
D
Shut off shielding gas supply when not in use.