Iso 85023 Dust Level Chart Pdf Updated ((link)) Jun 2026

An accurate dust level assessment ensures high-performance industrial coatings stick to steel surfaces and prevent premature corrosion failure.

If a tape sample exhibits an overall reddish-brown or black discoloration, the rule requires inspectors to record a Quantity Rating 5 and Size Class 1 . This indicates a massive concentration of microscopic abrasive breakdown dust that can severely interfere with coating adhesion. Standard Step-by-Step Testing Procedure iso 85023 dust level chart pdf updated

CLASS 3 – FAIL

The specification for the coating project will typically state the maximum permissible dust quantity grade and size rating. For example, a project specification may state, "Maximum dust quantity: Grade 2 per ISO 8502-3." Standard Step-by-Step Testing Procedure CLASS 3 – FAIL

The chart defines five classes (grades) for the . In practice, a common project specification requires the dust contamination level not to exceed Grade 2 or 3. a project specification may state