Plymovent complies with NEW ISO 21904 standards
Plymovent is fully prepared to accommodate the key features of this new ISO 21904 standard.
Welding fumes contain oxides of the metals in the materials being welded. If not protected by personal protection equipment and proper ventilation measures, a welder and his surrounding are exposed to several health risks by the oxides of the metals.
The risks are caused by different compositions of fluxes, which can lead to physical complaints and serious diseases.
A few examples of different compositions of welding fumes are:
These fumes are in themselves dangerous for welders working without protection and ventilation. However, the fumes can be even more dangerous when a coated metal or a metal with residues is being welded. Some ingredients in coatings can have toxic effects. These ingredients include:
All these ‘extra’ ingredients mix with very fine particles of metallic oxides, fluorides and metals. These particles remain in the air for several hours. Centers for occupational health and safety all over the world strongly advise to clean the air during and after the welding process. They also strongly advise to remove coatings and residues before you start welding. These are some of their tips:
Welding fumes are a complex mixture of metallic oxides, silicates and fluorides. Fumes are formed when a metal is heated above its boiling point and its vapours condense into very fine, particles (solid particulates). Welding fumes generally contain particles from the electrode and the material that is being welded. The composition of welding fumes varies.
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