SN EN 439 : 1994
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
WELDING CONSUMABLES - SHIELDING GASES FOR ARC WELDING AND CUTTING
05-01-2008
01-12-2013
Cooperating organizations
National foreword
Foreword
1. Scope
2. Properties of gases
3. Classification of shielding gases
4. Designation
5. Tolerances of mixtures
6. Purities and dew point
7. Forms of supply
7.1 Gas cylinders
7.2 Liquid
8. Shielding gas identification
National annex NA (informative)
Committees responsible
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