MESSER SolidWELD MIG 250GS Guide D'utilisation page 5

1.1 Health Hazard Information
The actual process of MIG welding is one that can cause a variety
of hazards. All appropriate safety equipment should be worn
at all times, i.e. headwear, hand and body protection. Electrical
equipment should be used in accordance with the manufacturer's
recommendations.
Eyes
The process produces ultra violet rays that can injure and cause
permanent damage. Fumes can cause irritation.
Skin
Arc rays are dangerous to uncovered skin.
Inhalation
Welding fumes and gases are dangerous to the health of the
operator and to those in close proximity. The aggravation of
pre-existing respiratory or allergic conditions may occur in some
workers. Excessive exposure may cause conditions such as nausea,
dizziness, dryness and irritation of eyes, nose and throat.
1.2 Personal Protection
Respiratory
Confined space welding should be carried out with the aid of a fume
respirator or air supplied respirator as per AS/NZS 1715 and AS/NZS
1716 Standards.
• You must always have enough ventilation in confined spaces.
Be alert to this at all times.
• Keep your head out of the fumes rising from the arc.
• Fumes from the welding of some metals could have an
adverse effect on your health. Don't breathe them in. If you are
welding on material such as stainless steel, nickel, nickel alloys
or galvanised steel, further precautions are necessary.
• Wear a respirator when natural or forced ventilation is not
sufficient.
Eye protection
A welding helmet with the appropriate welding filter lens for the
operation must be worn at all times in the work environment. The
welding arc and the reflecting arc flash gives out ultraviolet and
infrared rays. Protective welding screen and goggles should be
provided for others working in the same area.
Recommended filter shades for arc welding
Less than 150 amps Shade 10*
150 to 250 amps Shade 11*
250 to 300 amps Shade 12
300 to 350 amps Shade 13
Over 350 amps Shade 14
*Use one shade darker for aluminium.
Clothing
Suitable clothing must be worn to prevent excessive exposure to
UV radiation and sparks. An adjustable helmet, flameproof loose-
fitting cotton clothing buttoned to the neck, protective leather
gloves, spats, apron and steel capped safety boots are highly
recommended.
MIG 250GS Operating manual 05