7. Health and safety

7.1 Compressed gas in cylinders

Compressed gas cylinders must be handled with care to avoid impacts and falls, which can cause valves and regulators to break, resulting in violent gas leaks or explosive releases. Cylinders must be firmly chained and secured.

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7.2 Gas toxicity

The main toxic gases associated with TIG welding are ozone, nitrous vapours and phosgene gas.

Ozone

The ultra-violet radiation emitted by the arc acts...

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Bibliography

(1) - LIU (L.), HAO (X.), SONG (G.) - Anew Laser – arc hybrid welding technique based on energy conservation – - Materials Transaction, Vol 47, N° 6, p 1611-1614 (2006).
(2) - BERTHIER (A.), PAILLARD (P.), CARIN (M.), PELLERIN (S.), VALENSI (F.) - TIG...

Standards and norms

Welding and related techniques – Process nomenclature and numbering. - NF EN ISO 4063 - (février 2011),
Arc welding and cutting – Non-consumable tungsten electrodes – Classification. - NF EN ISO 6848 - (décembre 2015),
Welding and related techniques – Types of joint preparation – Part 1: Manual metal arc welding, gas-shielded metal arc welding, gas welding, TIG welding and beam welding of steels. - NF EN...