- Report #: NT MAT 003
- Approved: May 2002
This Nordtest method describes a procedure to assess the corrosion protection class of inorganic coatings on steel from the results of an accelerated corrosion test.
The corrosion protection class of a coating is defined from the atmospheric corrosivity classes given in ISO 9226 for zinc and carbon steel. The corrosion protection class of a coating corresponds to the highest atmospheric corrosivity class in which the coating can protect the metal from corrosion for a time period of 15 years.
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