Dust on blast-cleaned steel surfaces reduces coating adhesion, causes osmotic blistering, and creates premature failure points. ISO 8502-3:2017 specifies a method for assessing the quantity and size of dust particles remaining after surface preparation. This paper provides the updated dust level classification chart and interpretation guidelines.
For legal QA/QC documentation, purchase the official PDF. Do not rely on third-party screenshots. iso 85023 dust level chart pdf updated
When looking for the "Dust Level Chart PDF," you are looking for the visual grading system defined in the standard. The chart consists of photographs or drawings of tape strips with varying amounts of dust. For legal QA/QC documentation, purchase the official PDF
There are two criteria to grade: Quantity (Amount) and Size. The chart consists of photographs or drawings of
The updated 2017 chart introduces a clearer matrix. Here is a text-based interpretation:
The standard specifies a simple, low-tech method using a specialized "dust tape kit."
Equipment Needed: