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DIN EN ISO 6848:2005
Arc welding and cutting - Nonconsumable tungsten electrodes - Classification (ISO 6848:2004); German version EN ISO 6848:2004 (Foreign Standard)
This International Standard specifies requirements for classification of nonconsumable tungsten electrodes for inert gas shielded arc welding, and for plasma welding, cutting and thermal spraying.
Deutsches Institut für Normung [din]