Definitions for corrosion classification
As an aid in finding what requirements should be made for pre-treatment, we can define different corrosion classification:
Corrosion Class 0
- Indoors with relative humidity over 60%
- Very little corrosion risk (aggressivity)
CORROSION CLASS 1
- Indoors in non-heated, well ventilated room
- Little corrosion risk (aggressivity)
Corrosion Class 2
- Indoors with fluctuating temperature and humidity. Outdoors in inland climates, far from sea and industry.
- Medium corrosion risk (aggressivity)
CORROSION CLASS 3
- In densely populated areas or near industrial areas. Above open water near the coast.
- Large corrosion risk (aggressivity)
Corrosion Class 4
- Constant, high humidity. Near industry which manufactures or utilizes chemicals.
- Very large corrosion risk (aggressivity)
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