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Watcher will extinguish a fire or raise the alarm to evacuate if the fire
cannot be contained by the extinguishing equipment.
11.1 A fire watch extends at least 30 minutes after the welding is
complete to ensure there are no fires caused by smoldering sparks
or ejected material.
FUMES AND GASES
WARNING! Stop welding and move to a location with ventilation if
your eyes, nose or throat become irritated. This indicates the
ventilation is not adequate to remove the fumes. Do not resume
welding until the ventilation is improved and the discomfort ceases.
Seek medical attention if the symptoms do not diminish or if the
welder experiences nausea, dizziness or malaise.
Welding may produce hazardous fumes and gas during the welding process. A well-
ventilated work area can normally remove the fumes and gases, but sometimes
the welding produces fumes and gases that are hazardous to your health.
1.
Only work in a confined space if the area is well ventilated or while wearing
a respirator or an air-supplied respirator. Welding fumes and gases can
displace air and lower the oxygen level causing injury or death. Be sure the
breathing air is safe. Always have a trained watchperson nearby.
1.1 If ventilation in the work area is poor, use an approved air-supplied
respirator. All the people in the work area must also have air-
supplied respirators.
1.2 Oxygen displacement can occur in confined areas when the
shielding gas fills the area and pushes out air.
1.2.1
1.2.2
2.
Avoid positions that allow welding fumes to reach your face. Always
attempt to weld 'upwind' of the workpiece with the airflow across the
face of the welder. Airflow from behind may create a low-pressure area
in front of the welder and draw the fumes to the person.
3.
Ventilate the work area to remove welding fumes and gases. The fumes
and gases should be drawn away from the user.
3.1 Ventilation should be enough to disperse fumes, but not enough to
disturb the shielding gas or flame during welding.
10
AC/DC Inverter TIG/Arc Welder
Argon, Propane and Carbon Dioxide are heavier than air
and will fill a confined space from the bottom up.
Helium and natural gas are lighter than air and will fill a
confined space from the top down.
For technical questions call 1-800-665-8685
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