[MW:15958] RE: 15945] inert and active welding gases

Health effects of argon

Routes of exposure: The substance can be absorbed into the body by inhalation.

Inhalation risk: On loss of containment this liquid evaporates very quickly causing supersaturation of the air with serious risk of suffocation when in confined areas.

Effects of exposure: Inhalation: Dizziness. Dullness. Headache. Suffocation. Skin: On contact with liquid: frostbite. Eyes: On contact with liquid: frostbite.

Inhalation: This gas is inert and is classified as a simple asphyxiant. Inhalation in excessive concentrations can result in dizziness, nausea, vomiting, loss of consciousness, and death. Death may result from errors in judgment, confusion, or loss of consciousness which prevent self-rescue. At low oxygen concentrations, unconsciousness and death may occur in seconds without warning.

The effect of simple asphyxiant gases is proportional to the extent to which they diminish the amount (partial pressure) of oxygen in the air that is breathed. The oxygen may be diminished to 75% of it's normal percentage in air before appreciable symptoms develop. This in turn requires the presence of a simple asphyxiant in a concentration of 33% in the mixture of air and gas. When the simple asphyxiant reaches a concentration of 50%, marked symptoms can be produced. A concentration of 75% is fatal in a matter of minutes.

Read more: http://www.lenntech.com/periodic/elements/ar.htm#ixzz2CZ4ptHaT

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of welding
Sent: Sunday, November 18, 2012 1:07 PM
To: materials-welding@googlegroups.com
Subject: [MW:15945] inert and active welding gases

 

Dear All,

 

With reference to the subjected matter, can anybody advice me wt will be the effect of welding gases (argon, co2, Nitrogen etc.) on welders body.

 

regards

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